Specialist Group on Membrane Technology - IWA

<strong>Specialist</strong> <strong>Group</strong> onMembrane TechnologyNewsletter No. 1June 2011Editors: Vigid S. Vigneswaran and Allan Kuo-Lun TungWelcome all. This is the inaugural and short newsletter of IWA <strong>Specialist</strong> <strong>Group</strong> on MembraneTechnology (SGMT). The group intends to bring out two newsletters per year on recent activitieson membrane technologies.CONTENTSChairman‘s Message: Welcome to the SGMT Newsletter 2IWA SGMT Member Statistics (March 2011) 3List Of Managing Committee Members 5Know Your Committee Members (Alphabetical Order) 8Communication/Website/Newsletter 13Recent IWA SGMT Meeting 14Conferences 14Forthcoming Conference: IWA-MTC 2011, Aachen, Germany 15Past Conference: IWA MTWR 2010 Istanbul, Turkey 17Conference: IWA MTC 2009 Beijing, China 19Special Technical Topic: Advances in Characterization of NF/RO Membranes: Part I 21List of Selected Theses Available on the Internet (2008–2010) 26List of Patents in Membrane and Water Treatment 27News from IWA Headquarters 48The 2nd IWA Development Congress 50New from IWA Publishing 51We Want to Hear from You! 58Disclaimer: This is not a journal, but a Newsletter issued by the IWA <strong>Specialist</strong> <strong>Group</strong> on MembraneTechnology. Statements made in this Newsletter do not necessarily represent the views of the <strong>Specialist</strong><strong>Group</strong> or those of the IWA. The use of information supplied in the Newsletter is at the sole risk of the user,as the <strong>Specialist</strong> <strong>Group</strong> and the IWA do not accept any responsibility or liability._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 1Newsletter No. 1, June 2011

CHAIRMAN’S MESSAGE: WELCOME TO THE SGMT NEWSLETTERDear Members of the <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology,Thank you for your interest in the SGMT.Our group has grown to be one of the largest groups within IWA.As of March, 2011, the SGMT has 1,415 members from 83countries. The number of committee members also extended to 25as of January, 2011.All of us recognize well that the SGMT was born with an objectiveof promoting and exchanging knowledge as well as educatingprofessionals and public on the membrane technology. In response to this objective, we planned topublish a newsletter, of which this is the first issue.We would like to ask your continuous contributions for future editions. Please send news,activities, reports, publications including Ph.D. theses, etc., that you would like to share with otherSGMT members to Prof. S. Vigi Vigneswaren (s.vigneswaran@uts.edu.au) and Prof. Kuo-LunTung (kuolun@cycu.edu.tw) who are in charge of newsletter editing.We hope that the newsletter will serve as a ground for all of us to exchange knowledge and toprovide valuable information on membrane technology.Best regards,Chung-Hak LeeChair of <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology, IWA_________________________________________________________________________________________________________2IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

IWA SGMT MEMBER STATISTICS (MARCH 2011)Active individual members Active nominated representative TOTALRank Country number Rank Country number Rank Country number1 USA 126AUS 42 1 USA 16812 DEU 66 USA 42 2 AUS 1023 CHN 65 2 NLD 38 3 GBR 1004 GBR 64 3 GBR 36 4 CHN 955 AUS 60 4 CHN 30 5 DEU 906 JPN 47DEU 24 6 ESP 6957 ESP 45 ESP 24 7 NLD 668 CAN 34 6 FRA 19 8 JPN 499 KOR 30 7 MYS 14 9 CAN 4010 NLD 28 8 RUS 13 10 MYS 3411 ITA 24 9 SGP 12 11 FRA 33MYS 20BEL 11 12 SGP 311210TWN 20 PHL 11BEL 3013BEL 19HUN 10 KOR 3013SGP 19 11 MEX 10 14 ITA 2614BRA 17 UKR 10MEX 2215CHE 17NZL 9 ZAF 2212DNK 17 PRT 9 16 TWN 2115 IND 15AUT 8 17 BRA 2013FRA 14 ZAF 8 18 CHE 1916 SWE 14HKG 7DNK 181419ZAF 14 NOR 7 SWE 1817 MEX 12 15 CAN 6IND 1718 FIN 10 16 GEO 5 20 NZL 17ISR 9SCG 4 PRT 171917TUR 9 SWE 4AUT 1621AUT 8ARE 3 RUS 1620HKG 8 BHR 3HKG 1522NZL 8 18 BRA 3 HUN 15PRT 8 LUX 3 23 NOR 14IRL 7 SVN 3 24 PHL 1321 IRN 7CHE 2 25 UKR 12NOR 7 CHL 2 26 FIN 1122ARE 6 IND 2ARE 9CZE 6 19 ITA 2 27 ISR 9CHL 5 JPN 2 TUR 9HUN 5 ROU 2CHL 723POL 5 THA 2 IRL 728THA 5DNK 1 IRN 724GRC 4 20 FIN 1 THA 7LBN 4 JOR 1 29 CZE 6_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 3Newsletter No. 1, June 2011

Active individual members Active nominated representative TOTALRank CountrRankRanknumberCountry numberyCountry numberCOL 3MUS 1 29 POL 6IDN 3 OMN 1GEO 525 PER 3 POL 1 ROU 530ROU 3 SAU 1 SCG 520RUS 3 TJK 1 SVN 5CYP 2 TWN 1GRC 431HRV 2 UGA 1 LBN 4KEN 2 YUG 1BHR 3NGA 2 Total 49 453 COL 326 OMN 2 IDN 3PHL 2 32 LUX 3SAU 2 OMN 3SVN 2 PER 3UKR 2 SAU 3ARG 1CYP 2BGD 1 HRV 2BLR 1 33 JOR 2BRN 1 KEN 2CIV 1 NGA 2CYM 1ARG 1EGY 1 BGD 1FLK 1 BLR 1JOR 1 BRN 1KAZ 1 CIV 127 KWT 1 CYM 1LVA 1 EGY 1MAC 1 FLK 1NAM 1 KAZ 1PAK 1 KWT 1QAT 1 LVA 1SCG 1 34 MAC 1SVK 1 MUS 1TTO 1 NAM 1TUN 1 PAK 1ZMB 1 QAT 1Total 76 962 SVK 1TJK 1TTO 1TUN 1UGA 1YUG 1ZMB 1Total 83 1415_________________________________________________________________________________________________________4IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

LIST OF MANAGING COMMITTEE MEMBERSChair: Prof. Chung-Hak Lee (Korea)Deputy Chairs: Prof. Franz-Bernd Frechen (Germany)Prof. Vigid S Vigneswaran (Australia)Honorary Chair: Roger Ben Aïm (France)Secretary: Dr. Val Frenkel (USA)Treasurer: Prof. Xia Huang (China)Management Committee Members: (alphabetical order)Dr. Peter Berg (Germany)Prof. TorOve Leiknes (Norway)*Prof. Corinne Cabassud (France)* Dr. Andre Lerch (Germany)Dr. Peter Cartwright (USA)Mr. Boris Lesjean (Germany)Prof. Maria M. Cortalezzi (Argentina)* Prof. How Yong Ng (Korea)Prof. Sarina Ergas (USA)Prof. Gideon Oron (Israel)Dr. Jan Hofman (Netherlands)Prof. Kuo-Lun Tung (Taiwan)Prof. Peter M. Huck (Canada)Prof. Mark Wiesner (USA)Prof. Ismail Koyuncu (Turkey)* Prof. Kazuo Yamamoto (Japan)Dr. Masaru Kurihara (Japan)Prof. Hongde Zhou (Canada)Prof. Sangho Lee (Korea)**New committee members since January 2011.ChairProf. Chung-Hak LeeProfessorSeoul National Univ, Korealeech@snu.ac.krDeputy ChairProf. Franz-Bernd FrechenProfessorUniversity of Kassel, Germanyfrechen@uni-kassel.deSecretaryDr. Val FrenkelDirectorKennedy/Jenks Consultants, USAValFrenkel@KennedyJenks.comHonorary ChairProf. Roger Ben AïmProfessor EmeritusINSA Toulouse, FranceRBenaim47@aol.comDeputy ChairProf. Vigid S VigneswaranDirector/ProfessorUniv. of Technol. Sydney, AustraliaVigid.Vigneswaran@eng.uts.edu.auTreasurerProf. Xia HuangProfessorTsinghua University, Beijing, Chinaxhuang@tsinghua.edu.cn_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 5Newsletter No. 1, June 2011

Management Committee Members: (alphabetical order)*New committee members since January 2011Dr. Peter Berg Prof. Corinne Cabassud *ChiefProfessorInge water technologies AG,GermanyDept of Chem. and Environ.Eng., INSA, Toulouse, Francepberg@inge.agcorinne.cabassud@insatoulouse.frDr. Maria M. Cortalezzi *Director/Assoc. Prof.Center for Env. Eng.Buenos Aires Institute ofTechnology (ITBA), Argentinamfidalgo@itba.edu.arDr. Peter CartwrightFounderCartwright Consulting Co.Minneapolis, USApscartwright@msn.comProf. Sarina ErgasProfessorUniversity of South Florida, Tampa,USAergas@zonker.ecs.umass.eduDr. Jan HofmanSenior ResearcherKiwa Water Research,Nieuwegein, NetherlandsJan.Hofman@kwrwater.nlProf. Peter M. Huck Dr. Ismail Koyuncu *ProfessorProfessorDept of Civil and Environ. Eng.,Dept. of Environ. Eng.,Univ of Waterloo, CanadaITU, Turkeypm2huck@uwaterloo.cakoyuncu@itu.edu.trDr. Masaru Kurihara Prof. Sangho Lee *FellowAssist. ProfessorToray Ind. Inc., JapanSchool of Civil andMasaru_Kurihara@nts.toray.co.jpEnvironmental EngineeringKookmin Universitysanghlee@kookmin.ac.krProf. TorOve Leiknes *ProfessorDept of Hydraulic & Environ. Eng.,NTNU, Norwaytorove.leiknes@ntnu.noDr. Andre LerchAssoc. ProfessorTechnische Universität Dresden,Dresden,GermanyLerch@mailbox.tu-dresden.de_________________________________________________________________________________________________________6IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Mr. Boris LesjeanR&D Program ManagerKompetenzzentrum Wasser BerlingGmbH, Berlin, Germanyboris.lesjean@kompetenz-wasser.deProf. How Yong NgProfessorDept. of Environ. Eng.,NUS, Singaporeesenghy@nus.edu.sgProf. Gideon OronProfessorBen-Gurion University of the Negev,Beer Sheva, Israegidi@bgu.ac.ilProf. Kuo-Lun TungDirector/ProfessorR&D Center for MembraneTechnology/Dept of ChEChung Yuan Univ., Taiwankuolun@cycu.edu.twProf. Mark WiesnerProfessorNicholas School of the EnvironmentDuke University, USAwiesner@duke.eduProf. Kazuo YamamotoProfessorDepartment of UrbanEngineeringUniversity of Tokyo, Japanyamamoto@esc.u-tokyo.ac.jpDr. Hongde ZhouAssoc. ProfessorEnvironment Engineering, School ofEngineeringUniversity of Guelph, Canadahzhou@uoguelph.ca_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 7Newsletter No. 1, June 2011

KNOW YOUR COMMITTEE MEMBERS (ALPHABETICAL ORDER)Prof. Roger Ben Aïm, Chem. Eng., Doctor Science (IWA-SGMT Honorary Chair)Dr. Ben Aïm started his academic career as a Professor in 1972 when helaunched the first French M.Eng. program in Water Science andTechnology at the University of Montpellier, France. Since this time Dr.Ben Aïm was involved in teaching Chemical Engineering disciplinefocusing on water and wastewater treatment at University of Montpellier,Polytechnic National Institute at Toulouse, University of Technology ofCompiegne and finally at National Institute of Applied Science at Toulousetill his retirement in 2008. Dr. Ben Aïm was invited as a visiting Professorby several Universities like UTS and UNSW Sydney; University ofBoulder, Colorado; Asian Institute of Technology, Bangkok; UNAM,Mexico; Hokkaido University at Sapporo, Japan; University of Pharmacyand Science, Tainan, Taiwan. His research activity was focused on liquid/solid separation and since 1978, on membrane separation (UF/MF, MBR, Hybrid membraneprocesses, Pretreatment to RO). In this field, Dr. Ben Aïm was involved to several internationalresearch European projects and bilateral research projects with Australia, AIT Bangkok, Korea,Israel and Algeria. Dr. Ben Aïm was a member of the Committee of the specialized group ofParticle Separation at IWA since its creation and co-organized conference in Toulouse in 2007. In1981 Dr. Ben Aïm founded and was the first Director of a technical research Center (IFTS)devoted to Solid/Liquid Separation that is presently the reference centre for filtration technologytesting in Europe. From 1996 till 1998 Dr. Ben Aïm was in charge for the National joint researchprogram between CNRS and Lyonnaise des Eaux on the development of membranes, membranemodules and equipment for drinking water production that resulted in the launching of thecompany Aquasource. During this period (1972-2008) Dr. Ben Aïm supervised more than 50 PhDstudents, published more than 150 papers in International Journals, filed 3 patents, co-edited 3books, organized numerous international conferences, and chaired or co-chaired severalconferences like ICOM 2002 in Toulouse. In 2006 Dr. Ben Aïm was involved in the merging ofthe two specialized groups of IWA that resulted in the starting of the Membrane technology groupthat he chaired till 2010. He supported the globalization of the activity of the group withconferences and workshops organized in USA, Europe, Russia, China, and Turkey during thesefour years. Currently Dr. Ben Aïm is working with IFTS again as a senior scientific consultant andis considered as an international expert in the application of membrane technology for water andwastewater treatment. In collaboration with his former students Dr. Ben Aïm is involved (throughworkshops, seminars, training courses and research projects) in the dissemination of theknowledge on the application of membrane technology for water and waste water treatment incountries like Thailand, Viet Nam, Taiwan and Pakistan._________________________________________________________________________________________________________8IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Prof. Corinne CabassudDr. Corinne CABASSUD, is a professor of Chemical and EnvironmentalEngineering at the National Institute for Applied Science (INSA) inToulouse - France. She received a master degree in chemical engineeringin 1983 at the High Engineering School ENSIC, Nancy – France and aPhD in Chemical Engineering in 1986 at the National PolytechnicInstitute in Toulouse - France. From 1986 to 1993 she was ResearchEngineer and then Research Team Leader in the Membrane Laboratoryof Lyonnaise des Eaux Company in Toulouse - France. She participatedin research and development of new ultrafiltration modules and processesfor drinking water production that are now commercialised worldwide. In 1993 she joined INSA asan assistant professor in the Chemical Engineering Department. She is professor at INSA sinceJanuary 2000. She was director of the Chemical and Environmental Engineering Department ofINSA from September 2003 to August 2009. Prof. CABASSUD is heading a research group (28permanent staff and PhD students) on separations and oxidation processes for environmental issuescalled SOPHYE at the ―Laboratoire d‘Ingénierie des Systèmes Biologiques et des Procédés‖(LISBP) from INSA-Toulouse. Her main research topics are focusing on membrane processes forwater production, wastewater treatment and reuse, and desalination: methods to characterisedynamics of particle fouling and retention of viruses in situ, methods to prevent fouling in differentmembrane systems (nanofiltration, reverse osmosis, ultrafiltration, membrane bioreactors), designand optimisation of hybrid and chemically enhanced systems, notably as pretreatment beforereverse osmosis, membrane bioreactors, aeration in membrane reactors, optimisation and design ofmodules, nanofiltration of oily waste-water, removal of micropollutants, membrane distillation forwater desalination and membrane contactors. She has published about 300 papers andcommunications in the literature on environmental and membrane engineering. She is co-author of3 patents. She chaired 28 PhD theses in the field of water and membranes. She was involved inEuropean projects on membrane processes.Dr. Peter CartwrightPeter Cartwright has a bachelor‘s degree in chemical engineering from theUniversity of Minnesota (1961) and is a registered Professional Engineer inseveral states. He entered the water industry in 1974 as director of sales andmarketing for a major manufacturer of membrane elements and systems. In1980, Peter formed his consulting engineering business, CartwrightConsulting Co. In 1997, he co-founded another company, Cartwright, Olsen& Associates, LLC. This company has provided third-party evaluation andperformance validation testing of innovative drinking water treatmenttechnologies in accordance with the EPA Environmental TechnologyVerification Program. Peter specializes in both marketing and technicalconsulting in high technology separation processes for water purification, wastewater treatment,and food/chemical processing applications. With expertise encompassing virtually all treatmenttechnologies, his clients include manufacturers desiring to produce complete water treatmentsystems or components thereof. He provides complete design, construction, installation, andoperating services covering the entire spectrum of water purification, wastewater treatment, water_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 9Newsletter No. 1, June 2011

ecovery, reclamation and reuse, as well as environmentally conscious manufacturing. In addition,he offers market studies, comprehensive training, and educational programs in all areas of watertreatment, as well as complete applications and pilot testing of wastewater streams, necessary forthe design of complete treatment systems. Peter has extensive expert witness testimony experience.He has authored in excess of 150 articles, written several book chapters, presented over 160lectures in conferences around the world and has been awarded three patents for water purificationprocesses.Dr. Val S. Frenkel. Ph.D., P.E., D.WRE. (IWA-SGMT Secretary)Dr. Val S. Frenkel is an eminent figure in the water-recycling industrywith his expertise in water and wastewater treatment, water reuse, andmembrane technologies, including desalination. He is currently theDirector of Membrane Technologies with Kennedy/Jenks Consultants,the company-wide leader for Membrane Technologies, in which Dr.Frenkel himself leads the firm's Membrane Technology <strong>Group</strong>. Equallyinstrumental was Dr. Frenkel's role in the development of low pressuretechnologies and applications which are used and taught at theuniversity level. Dr. Frenkel's works go far beyond his job scope as theyare published extensively both in the US and abroad, authoring severalpatents in the process. He has published more than 100 articles touchingon the areas of water, wastewater treatment, desalination and salinity management. For his works,Dr. Frenkel has received numerous accolades from the likes of the International DesalinationAssociation and American Academy of Environmental Engineer. At the same time, Dr. Frenkel isalso a Diplomat, Water Resources Engineer (D.WRE) of the American Academy of WaterResources Engineers (AAWRE), which is part of the Academy of the Civil EngineeringCertification, Inc. (CEC).Dr. Val S. Frenkel, Ph.D., P.E., D.WRE. | DirectorMembrane Technologies, Kennedy/Jenks Consultants303 Second Street, Suite 300 South |San Francisco, CA94107P: 415.243.2150 | F: 415.896.0999 | C: 415.412.1380 | Direct:415.243.2454 | ValFrenkel@KennedyJenks.com_________________________________________________________________________________________________________10IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Professor Chung-Hak Lee (IWA-SGMT Chair)Dr. Chung-Hak Lee is a professor at School of Chemical and BiologicalEngineering, Seoul National University, Korea. He received the B.S. in1974 at Seoul National University, Korea and Dr. Ing. in 1980 at INSAde Toulouse, France. He served as an associate editor for WaterResearch, and has been a chair in Membrane Technology <strong>Specialist</strong><strong>Group</strong> (MTSG) since January, 2010. He also held, as a chairman, thebiennial conference of MTSG in 2004 in Seoul. Over 30 years, hisresearch activities have primarily focused on membrane application towater environment. He has made significant contributions that lead tothe next generation of membrane-based innovative water technology:1) analysis of membrane biofouling from both physicochemical and microbiological points ofview,2) development of a new biofouling control technology based on Quorum Quenching, e.g.,blockage of cell to cell communication at the molecular level,3) preparation of anti-fouling Patterned Membranes having various surface structures (pyramid,embossing, prism, etc) using lithography.Prof. Chung-Hak LEESchool of Chemical and Biological Engineering,Seoul National University, Seoul 151-744, KoreaTel) +82-2-8807075, Fax) +82-2-8740896; CP) +82-10-87700672URL) http://wemt.snu.ac.kr; E-mail) leech@snu.ac.kr_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 11Newsletter No. 1, June 2011

Professor Kuo-Lun (Allan) TungDr. Kuo-Lun (Allan) Tung, is now the Director of the R&DCentre for Membrane Technology (CMT) at Chung YuanUniversity in Taipei, Taiwan with a specialty of research anddevelopment on membrane filtration applications for 20 years.Allan Tung was born in 1968 in Taipei, Taiwan. He received theB.S., M.S. and Ph.D. degrees in 1991, 1994 and 1998,respectively, from the National Taiwan University, all in chemicalengineering. After post-doctoral research work for one year atNational Taiwan University, he joined Chung Yuan University in1999, where he is currently a Full Professor in the department ofchemical engineering. He is one of the founding members of theCMT since 2000 and was elected to serve as deputy director and director in 2006 and 2009,respectively. The CMT is aimed at promoting the development of membrane technology, excellingacademic exchange and enhancing cooperation with the industrial sector. With a solid trainingbackground of filtration theory since 1990, Allan Tung has been doing research in the area ofmembrane filtrations for more than 20 years with a strong research interest in the fundamentalstudy of membrane fouling and applications on downstream processing for bioseparation andwater/wastewater treatments using experimental and computational methods. Recent researchtopics include fundamental researches of membrane fouling and filtration mechanism ofdeformable particle, CFD analysis of fluid flow through textile filter media and porous membranes,molecular dynamic study of transport phenomena in membranes, computer simulation of multiphaseflow and membrane module design for water/wastewater treatments. Some of the developedpatented technologies, say feed spacer design technology for spiral wound membrane module, havebeen transfer to industries. Allan is also active in the international affairs in membrane filtrationdiscipline. He is now a council member of The Filtration Society in UK and also serving as thedeputy secretary/managing committee members of the membrane technology specialist group andwater reuse specialist group in international water association (IWA), Taiwan representativeSecretary of Asia Pacific Desalination Association (APDA), Taiwan deputy representative ofTaiwan, International Delegates on Filtration (INDEFI), and executive committee member ofInternational Recycling Society (IRS)._________________________________________________________________________________________________________12IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

COMMUNICATION/WEBSITE/NEWSLETTERThe website and newsletter activities are currently coordinated by Kuo-Lun (Allan) Tung and S.Vigi Vigneswaran respectively. The SGMT address is http://www.iwa-membrane.org/._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 13Newsletter No. 1, June 2011

RECENT IWA SGMT MEETINGThe committee and general assembly meetings of the <strong>Specialist</strong> <strong>Group</strong> on Membrane Technologies(SGMT) were held in Montreal, Quebec, Canada during the IWA-2010 congress on the 21 and 22September respectively. The following committee members attended the meeting: Chung-Hak Lee,Val Frenkel, Hongde Zhou, Mark Wiesner, Jan Hofman, How Yong Ng, Roger Ben Aïm, SarinaErgas, S. Vigi Vigneswaran.The minutes of the meeting are posted in our website: http://www.iwa-membrane.org/.CONFERENCESThe following are the conferences held during the last two years and the meetings planned over thenext two years.1. The regional conference on membrane technology was held in Moscow, Russia during 2-4June 2008. The awards for the student best paper were presented.2. The 5th IWA <strong>Specialist</strong> Membrane Technology Conference was held in Beijing, China inSeptember 2009. During this event, Prof. Yamamoto of University of Tokyo was honoredwith the inaugural membrane technology award for his innovative work on submergedmembrane bioreactors. The awards for the best poster and best student poster were alsopresented.The next 6th IWA <strong>Specialist</strong> Membrane Technology Conference will be held in Aachen,Germany during 4–7 October 2011. The deadline for the paper submission is on15 December 2010.The recommendation for the candidate for the 2nd Membrane Technology Award issolicited from the members. The awards will be presented during the Aachen conference.3. The first Joint conference with European Desalination Society (EDS) on ―Membranes fordrinking and industrial water treatment‖ was held in Trondheim, Norway during 27–30 June2010. The next regional conference with EDS will be organised in 2012. One of thecandidates for the venue of the next meeting is Czech Republic.4. The joint regional conference with Water Reuse <strong>Group</strong> - IWA Regional Conference andExhibition on Membrane Technology and Water Reuse was successfully taken place atIstanbul, Turkey during 18–22 October, 2010._________________________________________________________________________________________________________14IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

FORTHCOMING CONFERENCE: IWA-MTC 2011, AACHEN, GERMANY_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 15Newsletter No. 1, June 2011

6th IWA <strong>Specialist</strong> Conference on Membrane Technology for Water & Wastewater Treatment4-7 October 2011, Eurogress Aachen, GermanySafe water supply and sustainable water resources management demand for appropriate water andwastewater treatment technologies. Membranes are increasingly playing an essential role in waterpurification and in concepts aiming at closing the water cycle.Hence the scope of the 6th IWA <strong>Specialist</strong> Conference, which is organised by the Institute forEnvironmental Engineering (ISA) and the Chair for Chemical Process Engineering (AVT) ofRWTH Aachen University, covers the whole range of membrane applications in the water sector.A variety of aspects related to drinking water treatment, domestic and industrial wastewatertreatment, new membrane materials and configurations as well as process optimisation will bediscussed.It is carried out in conjunction with the International Water Association (IWA). In the IWA10,000 individual and 400 corporate members from 130 countries are brought together as leadingwater professionals in science, research, technology and practice to work towards responsible waterresources utilisation.RegistrationThe early bird registration deadline is approaching. To use the discount for early registration weinvite all interested IWA members to register online until 30 June, 2011.ProgramThe preliminary programme structure is already available on our website: http://www.iwamtc2011.org/From 7 June the title of oral papers will published in the preliminary programme.Plenary and Keynote SpeakersPlenary presentations:Thomas Melin, Mark von Loosdrecht, Menachem ElimelechKeynote presentations:Gary Amy, Xia Huang, Valentina Lazarova, Jan Hofman, Franz-Bernd Frechen, Maria Kennedy,Hansrüdi Siegrist.Four different very attractive technical tours which will take place on 6 October can be bookednow. Descriptions are also available on the website.The industrial exhibition is attracting a lot of attention, numerous booths are already booked. Forinterested companies it is still possible to book places (contact: krumm@isa.rwth-aachen.de).More technical details can be obtained from Claudia Niewersch:Claudia.Niewersch@avt.rwth-aachen.de_________________________________________________________________________________________________________16IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

PAST CONFERENCE: IWA MTWR 2010 ISTANBUL, TURKEYIWA Regional Conference and Exhibition on Membrane Technology and Water Reuse (IWA-MTWR-2010) was held in Istanbul, Turkey. This conference was the first conference organizedjointly by Membrane Technology and Water Reuse groups of IWA. Latest developments related tomembrane technologies in water reuse were discussed.There were totally 285 submitted papers for the conference and 134 papers for oral sessions and121 papers for poster sessions were accepted. 15 of the orals were accepted as keynotes.Additionally, there were 4 plenary lectures in the opening ceremony. Plenary Lecturers were givenby Hasan Z. Sarıkaya and Lutfi Akca (Ministry of Environment and Forestry, Turkey - WastewaterTreatment and Reuse in Turkey: Present and Future Perspectives), Jörg Drewes (Colorado Schoolof Mines, USA - Potable reuse: Overcoming the remaining constraints), Mathias Wessling (RWTHAachen University, Germany - Real time fouling visualization) and Amy Childress (University ofNevada-Reno, USA - The paradigm shift from reverse osmosis: forward osmosis and pressureretardedreverse osmosis).218 visitors from 47 countries were registered to the conference. The distribution of registeredparticipants were 72 (IWA member), 79 (NON-IWA member), 54 (Full time student) and 13(Daily entrance). Additionally, 175 local visitors from Turkey visited the conference. As a total,393 attendees registered to conference. There was also an exhibition in the conference and 25exhibitors took place in exhibition area. 12 international companies, 7 national companies, 1research center, 1 ministry, 1 university, 2 social clubs and 1 journal were attended to exhibition. A_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 17Newsletter No. 1, June 2011

technical visit session composed of three plants was obtained. The first part featured PasakoyAdvanced Biological Wastewater Treatment Plant, the second Kemerburgaz/ Odayeri LeachateTreatment Plant and the third part featured old water structures of Istanbul.There were three parallel technical sessions and 9 different topics were discussed in these sessions.These sessions were water reuse with membranes, membrane bioreactors, new membranematerials, membrane based seawater and brackish desalination, industrial wastewater treatment andreuse, membrane fouling and control for reuse, removal of emerging substances, energy productionand hybrid membrane processes._________________________________________________________________________________________________________18IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

CONFERENCE: IWA MTC 2009 BEIJING, CHINAIWA-Membrane Technology Conference & Exhibition 2009 (5th IWA Specialized MembraneTechnology Conference for Water and Wastewater Treatment), jointly organized by IWA andTsinghua University, was successfully held in Beijing from September 1 to 3, 2009. The topics of theconference covered almost all the areas of membrane technology, such as novel membrane materials,MF, UF, NF, RO and electro dialysis membrane processes, hybrid membrane processes, foulingmechanisms and control, desalination, drinking water and wastewater treatment, and some specialcase studies.This conference attracted around 350 delegates from 35 countries and regions from all over the world.539 extended abstracts were finally received; 164 oral presentations and 253 poster presentationswere selected, respectively. In the opening ceremony, three plenary lectures were given by Prof.Menachem Elimelech (Yale University, USA: Recent advances in membrane technology), Prof.Yoshimasa Watanabe (Hokkaido University, Japan: Recent advances in membrane fouling research),Prof. Gary Amy (KAUST, Saudi Arabia: Is nanofiltration (NF) a robust barrier for organicmicropollutants?). There were four parallel technical sessions. Eighteen keynote speakers gaveopening presentation in different parallel sessions. All the wonderful lectures together with manyvivid posters refreshed our mind and presented us the development trend of membrane technology infollowing years. During the Gala Dinner following the meeting, the first membrane technology prizewas awarded to Prof. Kazuo Yamamoto (The University of Tokyo, Japan) to honor his innovation ofsubmerged MBR for 20 years and contribution to the membrane bioreactor field. In the course of theconference, the organizing committee also arranged selection of ―Best poster awards‖ and ―Beststudent poster awards‖ for poster presenters and announced the winners in the closing ceremony._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 19Newsletter No. 1, June 2011

Additionally an exhibition was held during the conference, attracting many commercial companiesto show their latest products. After the conference followed a technical tour visiting three full-scalemembrane plants, including: A: Wenyu water purification treatment plant, MBR plant for riverwater purification (100,000 m 3 /d); B: Qinghe wastewater treatment plant, advanced membranefiltration plant (80,000 m 3 /d); and C: Beixiaohe wastewater treatment plant, MBR plant forremoval of nitrogen and phosphorus from municipal wastewater (60,000 m 3 /d).The conference provided an excellent platform for experts to share the state of the art of themembrane technologies and to enhance collaboration with each other. It also refreshed our mindsabout the application of membrane technology._________________________________________________________________________________________________________20IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

SPECIAL TECHNICAL TOPICAdvances in Characterization of NF/RO Membranes: Part IMembrane contamination and flux decline are undesirable, albeit inevitable, problems in NF andRO processes. The development of low-fouling membranes, the design of high efficiency modules,the selection of optimal operational strategies, and several improvements made in peripheralcontrol, monitoring, and cleaning techniques have been adopted to deal with these formidableobstacles. Unfortunately, the slow development of these methods has limited the competitivenessand subsequent acceptance of NF/RO processes in the past decade. This is mainly due to a lack ofsystematic methodology for characterizing NF/RO membranes.Membrane characterization plays an important role in relating structure properties tomembrane performance. Several methods have been proposed for characterizing NF/ROmembranes, which can be classified into three categories: (a) performance parameters, (b) surfacecharge parameters, and (c) morphology parameters [1]. In general, the performance of a filtrationmembrane in pressure-driven membrane processes, such as MF, UF, NF, and RO, is characterizedby the change in the permeate flux and solute rejection. Pure water permeability and soluterejection have been found to decrease when any of the above-mentioned membranes becomecontaminated, and they therefore require cleaning before they can be used again in operation. Threemain methods have been developed to measure the charge parameters of NF membranes: (a)electro-kinetic measurements of the zeta potential on the membrane surface, (b) the titrationmethod, which determines the ion exchange capacity of a membrane, and (c) impedancespectroscopy, which measures the ionic conductivity of a membrane. Among the above-mentionedmethods, the streaming potential measurement is the most well known and widely used method fordetermining the surface charge parameters of NF/RO membranes. The methods used fordetermining the performance and charge parameters have all been well developed. The mostcomplicated characteristics of the NF/RO membranes that must be measured are the morphologyparameters. The morphology parameters of NF/RO membranes include physical characteristics andchemical compositions. The physical characteristics include pore size, pore size distribution,porosity, surface roughness, and hydrophobicity. The characterization of chemical compositions isemphasized on the selective top layer of the membranes. The physical characteristics are usuallyadapted in modeling studies as key parameters related to the performance of NF/RO membranes;while the chemical compositions are directly related to the solute rejection and fouling potentials.The surface roughness and hydrophobicity can be determined using atomic force microscopy(AFM) and contact angle measurements, respectively. The porosity for a pore size larger than 2 nmcan be directly measured by electron microscopy, thermoporometry, gas adsorption/desorption,bubble pressure/solvent permeability, or chronoamperometry. However, for membranes with a poresize smaller than 2 nm, only indirect methods are available, and they can be only applied fordetermining the pore size or porosity in the bulk membrane matrix; for example, a physical sievingfiltration test can be used to determine the molecular weight cut-off (MWCO) of a membrane,AFM can be used with the aid of image analysis processing to determine the pore size distribution,or the surface-force pore flow (SF-PF) model can be used to determine the pore size distributionand porosity. The physical morphology properties obtained represent quantitative informationregarding the membrane surface or even the bulk, and the values obtained seem disputable. A moredirect method for quantitatively determining the pore size, pore size distribution, and porosity inNF/RO membranes is still being sought._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 21Newsletter No. 1, June 2011

Positron annihilation spectroscopy (PAS) has emerged as an advanced and relatively newapproach for studying the free volume holes present in these materials and possibly forcharacterizing and demonstrating the performance of membranes. The PAS technique had beenadopted earlier to characterize the membranes used for gas separation and pervaporationmembranes. Since it has been recognized that molecular-size vacancies present in non-porousmembranes are responsible for the observed performance of these membranes, PAS is believed tobe an excellent technique for demonstrating the findings in NF/RO and NF membranes withvacancy sizes smaller than 2 nm, as compared to other techniques normally used as a substitute. In2000, Shimazu et al. [2] first adopted the PAS technique to characterize the cavity size in ROmembranes. Kim et al. [3] used the PAS method to demonstrate the flux enhancement mechanismin a morphology-controlled thin film composite RO membrane and found that high flux ROmembranes are composed of two types of cavities: network cavities (2.1–2.4 Å) and aggregatecavities (3.5-4.5 Å) as illustrated in Figures 1 and 2. The increase in the size and number ofaggregate cavities may contribute to enhanced water flux.Figure 1Schematic representation of possible molecular structure of network and aggregatepores in aromatic polyamide TFC membranes [3].Figure 2 Free-volume hole radius distribution of aromatic polyamide polymers [3]._________________________________________________________________________________________________________22IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Recently, Boussu et al. [4] applied the PAS technique to characterization of the cavity size, cavitysize distribution, and porosity of NF membranes. Based on the data obtained from PAS analyses,they concluded that the cavity size distribution in some commercial NF membranes is bimodal, asfound by Kim et al., [3] in contrast to the log-normal distribution usually assumed. PAS is the onlynon-destructive, highly informative, and useful technique for directly characterizing polymericmaterials in terms of the vacancies present, particularly for dense polymeric membranes, wherePAS can possibly be used to explain the performance exhibited by different membranes used indifferent applications. However, most existing PAS studies for NF membranes have focused on thebulk of the selective polymeric layer in measuring the positron annihilation lifetime (PAL).Since most of NF/RO membranes are composite in structure. In order to in situ reveal themultilayer structures, a PAS coupled with a slow positron beam as illustrated in Figure 3 has beeninstalled at R&D Center for Membrane Technology (CMT) at Chung Yuan University, Taiwan [5].The PAS coupled with a slow positron beam system provide two experimental functions: positronannihilation lifetime spectroscopy (PALS) and Doppler broadening energy spectra (DBES) forinvestigating the depth profile of the cavity size distribution in the multilayer thin film compositeNF/NF membranes. For both of the experiments, a variable mono-energy slow positron beamavailable at the CMT was used. The 22 Na source was used to generate a positron beam, which wasslowed down by using tungsten foils as moderators, and the beam was then transported to thepolymer sample through an electromagnetically controlled accelerator system. The PAS data of Sand R parameters from DBES analysis reveal that the commonly available thin film compositeNF/RO membranes have a composite structure containing three layers: a selective polyamide layer,a transition layer, and a porous support prepared by the phase inversion technique as illustrated inFigure 4. The PAS data of ortho-Positronium lifetime and intensity from PALS analysis indicatethat the smallest cavity is not located in the top layer but at the interface between the top layer andthe transition layer. The smallest cavity plays an important role in determining the performance ofNF membranes.Figure 3PAS coupled with a slow positron beam at the R&D Center for Membrane Technology(CMT) at Chung Yuan University, Taiwan._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 23Newsletter No. 1, June 2011

R parameter(a)Mean depth (nm)0.350478 1448 27694388627183960.340.330.320.310.300.290 5 10 15 20 25 30Positron Energy (keV)(b)Figure 4 (a) SEM photograph of a thin film composite NF/RO membrane; (b) R parameter as afunction of incident positron energy and mean depth of a typical NF/RO membrane._________________________________________________________________________________________________________24IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Recent work at the R&D Center for Membrane Technology (CMT) at Chung Yuan University onthe characterization of TFC NF/RO membranes using PAS coupled with a slow positron beam wasfound to be promising, and PAS is expected to be a highly efficient and effective technique in thecharacterization of TFC membranes used in different membrane applications. PAS also haspotential for characterizing NF/RO membranes after contamination and swelling. With the aid ofaccessory detectors and facilities, PAS can be adopted for quantifying the depth profiles offunctional groups in virgin and contaminated NF/RO membranes in the wet-state, and this iscurrently being conducted at CMT.The characterization of chemical compositions is usually analyzed by attenuated totalreflection-Fourier transform infrared (ATR-FTIR) spectroscopy, nuclear magnetic resonance(NMR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and Rutherford backscatteringspectrometry (RBS). These techniques are not only applied to characterization of the chemicalstructure of the membrane but also of the composition of contaminants on the membrane surface.Details of the advances in characterization of chemical compositions for NF/RO membrane will beintroduced in the Part II of this special topic in next issue of the IWA-SGMT Newsletter.References[1] Schäfer, A.I., A.G. Fane, T.D. Waite. Nanofiltration: Principles and Applications. ElsevierLtd., Oxford, UK (2005).[2] Shimazu, A., K. Ikeda, T. Miyazaki, Y. Ito. Application of positron annihilation technique toreverse osmosis membrane materials. Radiat. Phys. Chem. 58, 555–561 (2000).[3] Kim, S.H., S.Y. Kwak, T. Suzuki. Positron annihilation spectroscopic evidence to demonstratethe flux-enhancement mechanism in morphology-controlled thin-film-composite (TFC)membrane. Environ. Sci. Technol. 39, 1764–1770 (2005).[4] Boussu, K., J. De Baerdemaeker, C. Dauwe, M. Weber, K.G. Lynn, D. Depla, S. Aldea, I.F.J.Vankelecom, C. Vandecasteele, B. Van der Bruggen. Physico-chemical characterization ofnanofiltration membranes. Chem. Phys. Chem. 8, 370–379 (2007).[5] Tung, K.L., Y.C. Jean, D. Nanda, W.S. Hung, C.H. Lo, K.R. Lee, J.Y. Lai. Characterization ofmultilayer nanofiltration membranes by positron annihilation spectroscopy. J. Membrane Sci.343, 147–156 (2009).Author: Kuo-Lun (Allan) TungDirector/ProfessorR&D Center for MembraneTechnologyDepartment of Chemical EngineeringChung Yuan UniversityTaoyuan, Taiwankuolun@cycu.edu.tw_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 25Newsletter No. 1, June 2011

LIST OF SELECTED THESES AVAILABLE ON THE INTERNET (2008–2010)Thesis titleFouling of a hydrophobicmicrofiltration membrane byalgae and algal organic matter:mechanisms and prevention(PhD, 2008)Analysis of compressible cakebehaviour in submergedmembrane filtration for watertreatment(PhD, 2008)Mitigation of fouling on hollowfiber membrane using ultrasonictransducer(Master, 2009)Influence of membrane propertieson fouling in MBRs(PhD, 2009)Fouling behaviour and nitrogenremoval in the aerobic granulationmembrane bioreactor(PhD, 2009)Treatment of biorefractorywastewater through membraneassisted oxidation processes(PhD, 2010)Parametric study of ultrafiltrationmembrane system anddevelopment of fouling controlmechanism (Master, 2010)Fouling layer formation by flocsin inside-out driven capillaryultrafiltration membranes(PhD, 2008)Quorum Sensing basedBiofouling Control in MembraneBioreactor for Advanced WaterTreatment(PhD, 2010)University/InstituteJohns HopkinsUniversityUniversity ofNew SouthWalesPurdueUniversityUniversity ofTwenteAsian Instituteof Technology(AIT)UniversitatRovira I VirgiliPurdueUniversityUniversity ofDuisburg-EssenSeoul NationalUniversityStudent’snameRodrigueF. SpinetteSantiwong,SuvinaiRensisSupervisor’snameCharles R.O‘MeliaProf. T. DWaite, Prof. A.Fane. Dr. S.ChangWebsitehttps://jscholarship.library.jhu.edu/bitstream/handle/1774.2/32539/RodrigueSpinetteThesis-Complete.pdfhttp://unsworks.unsw.edu.au/vital/access/services/Download/unsworks:3160/SOURCE2?view=trueXu Li Dr. G. Nnanna http://webs.calumet.purdue.edu/pwi/files/2010/07/Thesis-mitigationof-fouling-on-hollowfiber-membrane1.pdfP. van derMarelBui XuanThanhXavierBernatCamíProf. H.BrinksmaProf. C.VisvanathanAss. Prof. J. F.Capafonshttp://doc.utwente.nl/68430/1/thesis_P_van_der_Marel.pdfhttp://www.faculty.ait.ac.th/visu/Data/AIT-Thesis/Doctoral%20Thesis%20final/Thanh-2009.pdfhttp://www.tesisenxarxa.net/TESIS_URV/AVAILABLE/TDX-0419110-101405//Tesis.pdfAndréLerchhttp://duepublico.uniduisburgessen.de/servlets/DerivateServlet/Derivate-19873/Lerch_Diss.pdfKyung-Min YeonProf. GimbelProf. Chung-Hak LeeNina Zhou Dr. G. Nnanna http://webs.calumet.purdue.edu/pwi/files/2010/07/Thesis_final_Nina-Zhou_July21.pdfhttp://sspace.snu.ac.kr/bitstream/10371/6837/3/Quorum%20Sensing%20based%20Biofouling%20Control%20in%20Membrane%20Bioreactor%20for%20Advanced%20Water%20Treatment.pdf_________________________________________________________________________________________________________26IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

LIST OF PATENTS IN MEMBRANE AND WATER TREATMENTNo. Document Document Title1 5935440Membrane(1999)A process for treatment of zeolite membranes to improve performance which2 6383563(2002)3 US20030036085(2003)4 4217200(1980)5 6054085(1998)6 US20080078290(2008)7 5605631(1995)8 4866099(1989)9 4820419(1989)10 US20100260990(2010)11 4920193(1990)12 5030672(1991)comprises contacting the membrane with a silicic acid or a mixture of silicic acids.MembraneA process for treating zeolite membranes to improve their performance and toimprove their coherence consists of forming a film of zeolite material on a poroussupport to form a zeolite membrane,...MembranesDisclosed are smooth surfaced porous membranes having one or more advantagessuch as low autofluorescence, thermal-cyclability, especially under humidconditions, and three-dimensional binding...MembranesAccording to the present invention there is provided a novel type of membraneunit for use in electrodialysis comprising a heat-sealable frame framing andforming an integral entity with an...MembraneA method of producing a membrane comprises providing a solution containing aplurality of polymers in a non-aqueous liquid solvent, at least one of the polymers(hereinafter referred to as the...MembraneA membrane suitable for separating a gas, in particular carbon dioxide, from a gasmixture containing the gas is provided by a blend of polyvinyl alcohol (PVA) andpolyvinylamine (PVAm).MembranesNovel membranes comprise crystals of a zeo-type material carried by a poroussupport. The crystal growth of the zeo-type material is essentially continuous overthe pores of the support and the...MembraneA sulphonated aromatic polymer containing repeating units (Ar-Y) (where Y isSO 2 and/or CO), where at least half of groups Ar contain a group SO 3 M and Mis l/m of a polyvalent metal cation in...MembranesSolutions of sulphonated polyaryletherketones in a solvent mixture of at least threeliquids or low melting solids which are non-solvents or poor solvents for thepolymer, can be used to produce...MembranesA membrane comprising a base layer (A) and a top layer (B), where the base layer(A) comprises a heterophasic composition (I) containing the following polymercomponents, all percent amounts being...MembranesAn asymmetric membrane formed from a sulphonated polyarylethersulphone hasa salt rejection of at least 99%. Alternatively, a membrane has a good salt rejectionand an acceptable water flux such...MembranesAn asymmetric membrane formed from a sulphonated polyarylethersulphone hasa salt rejection of at least 99%. Alternatively, a membrane has a good salt rejectionand an acceptable water flux such..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 27Newsletter No. 1, June 2011

No. Document Document Title13 4714725(1987)MembranesSolutions of sulphonated polyaryletherketones in a solvent mixture of at least threeliquids or low melting solids which are non-solvents or poor solvents for the14 4304799(1981)15 6303035(2001)16 US20080193554(2008)17 US20080105615(2008)18 4740308(1988)19 5599380(1997)20 US20040009385(2004)21 6796215(2004)22 US20070007195(2007)23 6770202(2004)24 4420612(1983)polymer, can be used to produce...Processes for making membranesAn improved process for modifying the properties of membranes, particularly ionexchange membranes, and novel membranes characterized by a uniquecombination of low gas permeability and low...Immersed membrane filtration processA filtration process for filtering water with immersed microfiltration orultrafiltration membranes in a batch mode includes repeated cycles comprising thesteps of filling the tank to a level...Surgical MembraneThe invention relates to methods of processing amniotic membrane to generate asubstantially ‗growth factor free‘ membrane (GFF-membrane), and to methods ofprocessing GFF-membrane to generate...Membrane-cleaning method for membrane bioreactor processA method of cleaning a membrane in a membrane separation activated-sludgeprocess. By the method, deposits adherent to the surface of a membrane used in amembrane separation activated-sludge...Membrane cleaning processA process for cleaning fouled separation membranes such as ultrafiltration, reverseosmosis, and microfiltration membranes is provided comprising: removing aseparation membrane having a fouled...Polymeric membranePolymeric gas separation membranes having a separating layer with a highentropic effect are disclosed. Such membranes may provide enhanced gasseparation properties for polymeric membranes. A...Composite membraneThe present invention relates to a composite membrane comprising at least oneion-conducting polymer and a network of randomly orientated individual fibres,wherein there is a continuous region of...Membrane pumpA membrane pump ( 104 ) with an operating membrane ( 1 ) delimiting aconveying space ( 2 ), and a supplemental membrane ( 3 ) arranged on the side ofthe operating membrane ( 1 ) facing away from...Composite membrane and processThe invention relates to a composite membrane with a separation-activemembrane layer and a supporting membrane, a process for the production of thesame, and a process for using the same. The...Porous membraneThe present invention provides integral porous membranes comprising anamorphous halopolymer, as well as processes for preparing the membranes, anddevices comprising the membranes. An example of...Catalyst membraneA catalyst membrane including a porous polytetrafluoroethylene membranehaving grafted thereon polystyrenesulfonic acid. The catalyst membrane is usefulfor hydrolyzing water soluble organic..._________________________________________________________________________________________________________28IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

25 7128993(2006)26 US20060065596(2006)27 4080743(1978)28 7422689(2008)29 US20090000939(2009)30 7601263(2009)31 5401408(1995)32 US20050194315(2005)33 US20080044850(2008)34 4356068(2004)35 4769263(2006)36 US20080017578(2008)Composite membraneThe present invention relates to a composite membrane comprising at least oneion-conducting polymer and a network of randomly orientated individual fibers,wherein there is a continuous region of...Membrane filter cleansing processImmersed hollow-fiber membrane filtration systems sometimes encounter processproblems as a result of solids accumulation in and around the hollow fibers. Thesolids can accumulate to the point...Membrane drying processProcess for drying a water-wet membrane by contacting with a solution of watermiscible and water immiscible solvents and then removing the solution.Membrane-cleaning method for membrane bioreactor processA method of cleaning a membrane in a membrane separation activated-sludgeprocess. By the method, deposits adherent to the surface of a membrane used in amembrane separation activated-sludge...Membrane Distillation Process and Membrane Distillation DeviceIn a membrane distillation process in which a liquid to be concentrated isseparated from a vapour space ( 11 ) by a vapour-permeable liquid- or water-tightmembrane or membrane wall ( 13 ), to set...Composite membrane and processThe invention relates to a composite with a separation-active membrane layer anda supporting membrane, a process for the production of the same and a process forusing the same. The composite...Bipolar membraneA bipolar membrane comprising a cation exchange membrane, an anion exchangemembrane and an inorganic ion exchanger layer having a thickness of from 0.01to 100 μm present at the interface between...Membrane batch filtration processA membrane batch filtration process has a step of reducing the water level in thetank by permeation prior to emptying the tank to reduce the volume of waterdrained after each batch. Permeation...Membrane BioreactorThe invention provides a membrane comprising a gel reinforced by a support. Themembrane has opposing surfaces and a thickness between said surfaces. The gelcommunicates between the opposing...Permionic membraneDisclosed is an electrolytic cell having an anode and cathode separated by and incontact with a permionic membrane. The cathodic surface of the permionicmembrane is characterized by microporous...Supported membraneA supported membrane comprising a non-woven monofiliment support layerwherein dense membranes with a maximum width of 5000 μm are surrounded byfilaments. The invention further relates to a...Membrane StacksThe present application discloses a membrane stack comprising a first and secondmembrane layers, and a spacer layer disposed between said first and secondmembrane layers, said membrane stack..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 29Newsletter No. 1, June 2011

37 7677398(2010)38 5326449(1994)39 US20080269417(2008)40 5147549(1992)41 5281337( 1994)42 5259950(1995)43 US20080203019(2008)44 US20060157893(2006)45 US20050000353(2005)46 US20050284814(2005)47 US20090068688(2009)48 6887300(2005)Process for improving membranesThe invention provides a process for improving the antifouling properties and forincreasing the selectivity of commercial composite polyamide nanofiltration (NF)and reverse osmosis (RO) membranes...Composite membraneA sensor device for measuring the concentration of an analyte in solution isdescribed. The device includes a composite membrane which incorporates aporous membrane containing an immobilized...Process for Improving MembranesThe invention provides a process for improving the antifouling properties and forincreasing the selectivity of commercial composite polyamide nanofiltration (NF)and reverse osmosis (RO) membranes...Membrane separation processMembrane separation process is improved by use, as a support membrane, of apolyacrylonitrile membrane the surface of which has been oxygen-plasma treatedwhereby at least a portion of the surface...Membrane separation processMembrane separation process is improved by use, as a support membrane, of (i) apolyacrylonitrile membrane on which at least a portion of the surface --CN groupshave been hydrolyzed to --COOH...Composite membraneA composite membrane excelling in organic solvent resistance, heat resistance andorganic vapor resistance is disclosed. The composite membrane of the presentinvention comprises a porous membrane...Membrane batch filtration processA membrane batch filtration process has a step of reducing the water level in thetank by permeation prior to emptying the tank to reduce the volume of waterdrained after each batch. Permeation...PTFE membraneA method for improving the dimensional stability of PTFE membranes by theapplication of elevated temperature and elevated pressure to a PTFE membrane.The process reduces and/or eliminates the...Cyclic membrane separation processA cyclic process for controlling environmental emissions of volatile organiccompounds (VOC) from vapor recovery in storage and dispensing operations ofliquids maintains a vacuum in the storage...Ultrafiltration membrane and processAn inorganic membrane suitable for ultrafiltration or nanofiltration, and methodsfor making and using the membrane. The membrane has a organic polymerdeposited on the feed surface, but is not...PVDF membranesThe invention provides a method of treating a polyvinyl difluoride (PVDF)membrane comprising: (a) contacting said membrane with an alcohol and awetting agent; and (b) drying said membrane.Cyclic membrane separation processA cyclic process for controlling environmental emissions of volatile organiccompounds (VOC) from vapor recovery in storage and dispensing operations ofliquids maintains a vacuum in the storage..._________________________________________________________________________________________________________30IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

49 5143620(1992)50 US20050029186(2005)51 5085774(1992)52 6719824(2004)53 US20070197952(2007)54 US20040245172(2004)55 US20040035782(2004)56 3737043(1973)57 US20070191872(2007)58 6596137(2003)59 5028337(1991)60 4597777(1986)Membrane separation processMembrane separation process is improved by use, as a support membrane, of (i) apolyacrylonitrile membrane on which at least a portion of the surface --CN groupshave been hydrolyzed --COOH groups...Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Polymeric membranesImproved polymeric membranes and their method of manufacture are disclosed.The improved membranes are produced by increasing the draw ratio employedduring the manufacture of the membrane. The...Cyclic membrane separation processA cyclic process for controlling environmental emissions of volatile organiccompounds (VOC) from vapor recovery in storage and dispensing operations ofliquids maintains a vacuum in the storage...Membrane eyeletA structure and method for deploying an eyelet in a membrane, where the eyeletincludes: a waist section; a first anchor section coupled to and flared from thewaist section; and a second anchor...Filtration membraneThis invention relates to porous formed bodies, especially membranes, with anovel porous structure on the basis of thermoplastic polymers, and to a method forproducing such formed bodies and...Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Membrane moduleA compact membrane module for use in reverse osmosis processes having aplurality of membrane cell structures located in close adjacency so that when themodule is in use, adjacent membrane...Membrane eyeletA structure and method for deploying an eyelet in a membrane, where the eyeletincludes: a waist section; a first anchor section coupled to and flared from thewaist section; and a second anchor...Bipolar membraneA bipolar membrane which exhibits a low water dissociation voltage for anextended period of time under a high current density condition, and a high currentefficiency, without developing blister....Coated membranesComposite membranes are provided comprising an underlying membrane selectedfrom the group consisting of microfiltration, ultrafiltration and reverse osmosismembranes; and a coating thereon...Membrane gas separation processesThis invention relates to membrane gas separation of carbon dioxide and methanecontaining gas mixtures. More particularly the invention relates to apparatus andprocesses for recovering a..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 31Newsletter No. 1, June 2011

61 US20040049230(2004)62 4925562(1990)63 7404896(2008)64 4892662(1989)65 7208089(2006)66 US20060037710(2006)67 US20040215323(2004)68 6884350(2005)69 US20050029185(2005)70 4584246(1985)71 4853127(1989)72 4532347(1985)Biomimetic membranesBiological membrane proteins are incorporated into a co-polymer matrix toproduce membranes with a wide variety of functionalities. In one form of theinvention, a composite membrane incorporates...Pervaporation process and membraneA prevaporation process characterized by excellent separation efficiency employsa membrane that comprises an elastomeric polymer matrix containing zeolite.Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Membrane processing methodA membrane processing method for subjecting solid support membranes used inthe analysis and investigation of membrane bound specimens, such as moleculesand molecule fragments of DNA and RNA,...Biomimetic membranesBiological membrane proteins are incorporated into a co-polymer matrix toproduce membranes with a wide variety of functionalities. In one form of theinvention, a composite membrane incorporates...Membrane applicatorA membrane applicator comprises a wheeled carriage adapted to ride on a surfaceto be covered with the membrane. A roll mount system is provided on the carriageto support a roll of membrane...Membrane eyeletA structure and method for deploying an eyelet in a membrane, where the eyeletincludes: a waist section; a first anchor section coupled to and flared from thewaist section; and a second anchor...Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Bipolar membranesAn improved bipolar membrane, a precursor for said membrane and a process forpreparing bipolar membranes and precursors are described. In the process aprecursor is formed by laminating at least...Microporous membraneA microporous membrane for use in filtration, the membrane being formed of apolyetherimide derived from an aromatic bis (ether anydride) and an organicdiamine. The membrane is formed from a...Membrane solvent extraction processThe instant invention relates to a membrane solvent extraction and reactionsystem. More particularly it pertains to an improvement in the membrane solventextraction system wherein a solute is..._________________________________________________________________________________________________________32IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

73 US20050032982(2005)74 6395325(2003)75 3996141(1976)76 5520809(1996)77 US20100056650(2010)78 6863813(2007)79 US20100072131(2010)80 US20030121841(2003)81 6083393(2000)82 4195748(1980)83 7497895(2009)84 7784621(2010)Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify...Porous membranesThis invention relates to a novel method for the formation of porous hydrophilicmembranes, to the membranes themselves, and to uses for them.Dialysis membraneA semi-permeable membrane containing a catalyst for conversion of hydrogenperoxide introduced from one side of the semi-permeable membrane to molecularoxygen which is released from the opposite...Separation membranesThis invention relates to separation membranes composed of a mixture of twokinds or more of polymers containing at least one kind of polymer selected frompolyesters, polyethers, polycarbonates,...Membrane ProductionThe present invention is a method for forming a hydrophilic polymer membranefor use in a membrane electrode assembly, comprising the polymerisation of amaterial or materials from which the...Membrane moduleA membrane module for a device used to separate substance mixtures in a crosscurrent method includes a number of tubular membranes which encircle, at least insections, a common axis in an...Membrane bioreactorThe present invention relates to wastewater treatment facilities, and moreparticularly to an improved membrane bioreactor for treatment of wastewater. Inone embodiment, a membrane bioreactor for...Structured membraneThe invention concerns a flat permeable membrane which has recesses on at leastone side which are preferably in the form of channel structures that areconsiderably larger than the pores of the...Hydrophilic membraneA hydrophilic porous membrane is provided which comprises a network of a noncrystallinehydrophobic polymer and an in situ crosslinked hydrophilic acrylatepolymer. A method of preparing such a...Closure membraneA closure membrane is described for closing a can opening which membranecomprises a flat part and a peripherally adjoining border zone destined to behermetically sealingly connected to the can....Membrane separation processThe invention relates to an improved membrane pervaporation and vaporpermeation system in which the vacuum is produced by a fluid passing through aVenturi-type nozzle. The fluid is chosen from...Ultrafiltration membrane and processAn inorganic membrane suitable for ultrafiltration or nanofiltration, and methodsfor making and using the membrane. The membrane has a organic polymerdeposited on the feed surface, but is not..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 33Newsletter No. 1, June 2011

85 4774038(1987)86 5102600(1992)87 US20060032813(2006)88 4135942(1980)89 4938870(1990)90 5069793(1991)91 US20090255201(2009)92 US20050210808(2005)93 4092233(1979)94 7189322(2007)95 5232600(1994)96 7300022(2008)Polyamide membranesA method for preparing an alcohol insoluble polymide membrane. An appropriatemembrane-forming casting liquid containing the required polyamide is evaporatedunder conditions of high total humidity...Polymeric membranesImproved polymeric membranes and their method of manufacture are disclosed.The improved membranes are produced by increasing the draw ratio employedduring the manufacture of the membrane. The...Fluoropolymer membraneA porous fluoropolymer membrane comprising a first surface, a second surface,nodes and free fibrils, wherein one of the first and second surfaces has a greaternumber of free fibrils per unit area...Keratin membraneKeratin membrane containing aliphatic polyvalent alcohol having excellenttoughness and flexibility and showing excellent ion-permeability.Composite membraneA composite sheet comprises a porous inorganic membrane and a microporousinorganic film overlying a surface of the membrane, where the membrane may bean anodic aluminum oxide membrane having an...Membrane moduleA spiral-wound pervaporation module, designed to achieve optimum permeateflow throughput. The module is of conventional design and construction, in that itincorporates membrane envelopes, within...Membrane roofingA foam roofing underlayment is provided with a reinforcement membrane havingan array of fastener elements for engaging fastener elements on a flexible roofmembrane. The underlayment is formed by...Building membraneThe present invention is a single ply building membrane comprising a single plymembrane with a base and a cap layer and a top and bottom surface, having apredetermined printed design on the cap...Membrane apparatusAn improved apparatus is described wherein a semi-permeable membrane issupported against a convex surface and wherein the likelihood of damage to suchmembrane during mounting and use is...Charged membraneThe present invention provides a hydrophilic charged microporous membranecomprising a porous hydrophobic substrate and a coating comprising a chargeprovidingagent. The present invention further...Hydrophobic membranesA process for the preparation of a microporous polymeric membrane is providedwhich includes polymerizing a polymerizable fluorine-containing monomer in thepresence of a microporous polymeric...Modified membranesA porous polymeric membrane formed from a blend of a polymeric membraneforming material, such as polyvinylidene fluoride or polysulfone and a polymericreactivity modifying agent adapted to modify..._________________________________________________________________________________________________________34IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

97 6688477(2004)98 5032148(1990)99 US20040177753(2004)100 6017455(2000)101 6585435(2004)102 7347244(2008)103 US20050098494(2005)104 US20090320733(2009)105 7358288(2008)106 4788226(1998)107 US20100255739(2010)108 3619424(1971)Composite membranesThe present invention provides a composite membrane comprising a poroussupport layer and a selective layer comprising a vinylacetate polymer. Theinvention also provides a process for preparing a...Membrane fractionation processA fractionation process for treating a gas stream containing organic vapor in aconcentration technically or economically difficult to treat by standard wastecontrol methods. Typically this...Polyimide membranesThe present invention deals with a process for treating a polyimide comprisingexposing said polyimide to a compound selected from the group consisting ofdendrimers, hyperbranched polymers and...Porous membraneThe present invention provides an anisotropically porous membrane which isobtained according to a wet process, which comprises a substantially nonsulfonatedaromatic polyether ketone having a...Membrane keyboardAn improved membrane keyboard includes a bottom layer, a second conductivemembrane layer located above the bottom layer having an output section extendedfrom one end thereof at a selected...Membrane applicatorA membrane applicator comprises a wheeled carriage adapted to ride on a surfaceto be covered with the membrane. A roll mount system is provided on the carriageto support a roll of membrane...Halar membranesPorous polymeric membranes including Halar (poly (ethylenechlorotrifluoroethylene)) and related compounds and the methods of productionthereof which avoid the use of toxic solvents. Preferred...Sail membraneSail membrane preferably made of a woven fabric of synthetic fibers, with saidmembrane having a microroughness in the form of parallelly extending groovesarranged so as to achieve a density of 5...Polymer membranesThe invention relates to novel organic/inorganic hybrid membranes which havethe following composition: a polymer acid containing —SO 3 H, —PO 3 H 2 , —COOH or B(OH) 2 groups, a polymeric...Polyamide membranesA microporous membrane suitable for use in microfiltration. The membrane is ahydrophilic skinless sheet, formed of polytetramethylene adipamide, either alone,or in admixture with at least one...Roofing membraneA roofing membrane having a membrane composition including a propylenebased elastomer, a plastomer, and an impact polypropylene-ethylene copolymer.The membrane composition also may have a flame...Semipermeable membranesPolyamides of diamines with amino-isophthalic acid make semipermeablemembranes of good stability and salt rejection._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 35Newsletter No. 1, June 2011

109 6039872(2000)110 US20030080041(1971)111 US20100187127(2010)112 5494638(1996)113 US20020155152(2002)114 3923654(1975)115 4125462(1979)116 6515115(2004)117 6849185(2007)118 US20090291249(2009)119 7378020(2008)120 US20030198813(2003)Hydrophilic membraneA hydrophilic porous membrane is provided which comprises a network of a noncrystallinehydrophobic polymer and a hydrophilic acrylate polymer. A method ofpreparing such a hydrophilic porous...Membrane moduleThe invention relates to a membrane module for a device used to separatesubstance mixtures in a cross current method. Said membrane module comprises,a number of tubular membranes ( 22, 24, 26 )...Membrane restorationEmbodiments include membrane restoration process. A membrane can be restoredby replacing an anolyte and a catholyte of a cell with a solution having an organicacid. The cell can include an anode,...Support membraneThe present invention relates to a membrane suitable for use as the support for oneor more test reagents for testing a material applied to the membrane, whichmembrane is characterized in that it...Membrane structureA membrane structure employing a structure in which a lipid membrane is held bya hydrophilic polymer. The hydrophilic polymer layer contains an aqueous phase.There are functional molecules...Ultrafiltration membraneDisclosed is a method for preparing strong, dimensionally, stable, high flux,anisotropic ultrafiltration membranes by the filtration deposition of a diluteaqueous colloidal thoria sol containing...Coated membranesNovel membranes having one coating or layer of a cationic polyelectrolyte, themethod of preparation, and use for rejecting ionically charged solutes.Membrane filtrationThe invention relates to a process for isolating a desired water-soluble productfrom a fermentation broth wherein the broth is circulated along a ceramicmembrane, and wherein a trans-membrane...Charged membraneThe present invention provides a hydrophilic charged microporous membranecomprising a porous hydrophobic substrate and a coating comprising a chargeprovidingagent. The present invention further...Roofing membranesAn impact resistant membrane and methods of preparing and utilizing themembrane are disclosed. The membrane comprises a loft layer, a first polymericlayer bonded to a first surface of the loft...Fluoropolymer membraneA porous fluoropolymer membrane comprising a first surface, a second surface,nodes and free fibrils, wherein one of the first and second surfaces has a greaternumber of free fibrils per unit area...Polymeric membranesA roofing membrane is described. The roofing membrane contains at least onethermoplastic layer. The thermoplastic layer contains at least one thermoplasticmaterial and at least one microbial..._________________________________________________________________________________________________________36IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

121 7635062(2009)122 4221642(1981)123 6887507(2006)124 US20070114177(2007)125 4954256(2000)126 US20100213058(2010)127 US20100072145(2010)128 5034129(1991)129 4272378(1981)130 5137634(1992)131 4737165(1988)132 US20070138083(2007)Composite membraneA composite article, in an exemplary embodiment, includes a porous membraneformed from a first material, a coating formed from a second material applied to atleast a portion of the porous...Anionic membranesNovel membranes for electrochemical cells permeable to anions, fluid imperviousand resistant to halogens and acidic and oxidizing environments comprised ofcopolymers of (1) divinylbenzene or...Membrane structureA membrane structure employing a structure in which a lipid membrane is held bya hydrophilic polymer. The hydrophilic polymer layer contains an aqueous phase.There are functional molecules...Membrane separation processThe invention relates to an improved membrane pervaporation and vaporpermeation system in which the vacuum is produced by a fluid passing through aVenturi-type nozzle. The fluid is chosen from...Hydrophobic membranesA hydrophobic polymeric microporous membrane having a CWST of less thanabout 28 dynes/cm is obtained by forming a (co)polymer of a fluorine-containingethylenically unsaturated monomer that is...Biosensor MembranesNovel membranes comprising various polymers containing heterocyclic nitrogengroups are described. These membranes are usefully employed in electrochemicalsensors, such as amperometric biosensors....Membrane tabsA candle filter includes an end portion, elongate interior structure extending fromthe end portions and defining a space for a fluid, and a membrane fabric forfiltering a substance from the fluid...Membrane assemblyThe invention relates to a membrane assembly, provided with a carrier whichcarries a layer of a macromolecular substance with membrane action, said carrierbeing a composite carrier comprising on...Semipermeable membraneA method for the preparation of a semipermeable membrane which comprisesexposing porous shaped articles of polyacrylonitrile or copolymers thereofcontaining acrylonitrile in an amount of more...Composite membraneA composite sheet comprises a porous inorganic membrane and a microporousinorganic film overlying a surface of the membrane, where the membrane may bean anodic aluminium oxide membrane having an...Multicomponent membranesA multicomponent membrane which may be used for separating variouscomponents which are present in a fluid feed mixture comprises a mixture of aplasticizer such as a glycol and an organic polymer...Separation membrane[Subject] The aim is to provide a separation membrane which can fulfill both highseparation capability and high permeation rate. [Solving Means] The disclosed isseparation membrane which..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 37Newsletter No. 1, June 2011

133 US20080318134(2008)134 US20080044456(2008)135 US20080302243(2008)136 US20040106044(2004)137 7169885(2007)138 5989426(1999)139 7615105(2009)140 US20040099138(2004)141 4243507(1981)142 3901810(1975)143 US20080251440(2008)144 5981030(1999)Polymer MembranesThe invention relates to novel organic/inorganic hybrid membranes which havethe following composition: a polymer acid containing —SO 3 H, —PO 3 H 2 , —COOH or B(OH) 2 groups, a polymeric...Cellulose membrane drying processA method of membrane drying of bacterial cellulose, characterized by the fact thatthe membrane is stuck to a device and under tension, for acquirement of a drypellicle with plain, flat and...Filter MembraneA filter membrane includes a substrate, a polymer layer provided on the substrateand a plurality of filter openings each having a width of from about 2 nanometersto about 5 nanometers provided in...Polymer membranesThe invention relates to novel organic/inorganic hybrid membranes which havethe following composition: a polymer acid containing —SO 3 H, PO 3 H 2 , —COOH or B(OH) 2 groups, a polymeric ease...Polyimide membranesThe present invention deals with a process for treating a polyimide comprisingexposing said polyimide to a compound selected from the group consisting ofdendrimers, hyperbranched polymers and...Osmosis membraneA composite reverse osmosis membrane has a polyamide type skin layer whosespecific surface area ranges from 3 to 1000. The composite reverse osmosismembrane of this invention is superior in the...Separation membraneIt is an object of the present invention to provide a separation membrane in whicha film-forming solution can be prevented from reaching a rear surface of a poroussupport in a step of forming a...Membrane separation processA high purity stream of methane can be obtained from crude natural gas,especially exhaust gas from waste landfills, by a process that includes firstremoving moisture, then feeding the dried crude...Membrane electrophoresisThe separation of substances by membrane electrophoresis using the principle ofisoelectric focussing is improved by the use of membranes of known isoelectricpoint and having buffering capacity....Ultrafiltration membranesIt is disclosed that ultrafiltration membranes may be made from solutions ofsegmented polymers having distinct hydrophilic portions and hydrophobicportions. A preferred segmented copolymer is one...Membrane ElementA membrane element in which, after membrane breakage or deterioration, thefiltration plate made of a thermoplastic resin can be reused to replace themembrane with a fresh one. The membrane...Roofing membraneA roofing membrane has a quantity of water-retaining particles fixed in the uppersurface of the membrane. A fleece web affixed to the membrane surface in a quiltlikemanner may provide zones of..._________________________________________________________________________________________________________38IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

145 4795562(1989)146 4113886(1978)147 4432866(1984)148 4920105(1990)149 US20060151374(2006)150 6042958(2000)151 6339108(2002)152 5076926(1991)153 4920237(1990)154 4683039(1987)155 US20050016915(2005)156 US20100162887(2010)Membrane batch-processing apparatusA membrane batch-processor system and method for the fluid treatment of aplurality of specimen containing membranes, such as membranes havingspecimens of DNA, RNA, and protein molecules deposited...Membrane decaffeinationAqueous vegetable extracts such as extracts of tea or green or roasted coffee aredecaffeinated by permitting caffeine to diffuse through at least one porous,hydrophilic membrane and a...Membrane separation processA method for separating a mixture into a first fraction and a second fraction isdisclosed. The method comprises passing the mixture into a decantation zonewhere the solution is separated into a...Membrane pouchA membrane pouch, for rehydrating sterile intravenous and other solutions fornon-sterilized fresh water, has a double bag construction. An inner bag made ofsemipermeable membrane material holds...Charged membraneThe present invention provides a hydrophilic charged microporous membranecomprising a porous hydrophobic substrate and a coating comprising a chargeprovidingagent. The present invention further...Composite membranesA novel composite membrane comprising a porous substrate of randomlyorientated individual fibres and at least one ion conducting polymer, characterisedin that the ion conducting polymer is...Oxygenator membraneThe invention relates to an oxygenator membrane based on organically modifiedsilicic-acid polycondensates into a process for preparation thereof. The oxygenatormembrane is obtainable by...Modified membraneA process is provided for modifying a ceramic ultrafiltration membrane systemconsisting of a sub-microporous top layer and a microporous inorganic carrierwhereby said top layer after modification...Membrane keyboardsA membrane keyboard has two spaced flexible membranes (1 and 2) carryingcontact pad assemblies. Acoustic pads (15) of expanding ink are printed on the topsurface of the upper membrane (2) between...Membrane pervaporation processChlorine dioxide is transferred by membrane pervaporation from one chamberfilled with aqueous chlorine dioxide-generating reactants or other chlorine dioxidedonor medium across a gas-permeable...Permeable membraneA permeable membrane, for use in a displacement press or for converting an airpress into a displacement press. The permeable membrane including a laminatestructure having a plurality of layers...Carbon membranesA process for the production of a carbon membrane comprising: (i) reacting amixture of cellulose and hemicellulose with an acid; (ii) casting the mixture toform a film, (iii) drying said film;..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 39Newsletter No. 1, June 2011

157 6818133(2004)158 5425865(1995)159 7776214(2010)160 US20070034133(2007)161 4250029(1981)162 6974544(2005)163 5381386(1995)164 6250034(2001)165 4455864(1984)166 US20100203400(2010)167 4834882(1989)168 6423119(2002)Semipermeable membranesThe invention relates to semipermeable membranes comprising organicallymodified silicic-acid polycondensates, to a process for preparing them and to theiruse in gas exchange and in separation...Polymer membraneComposite polymer membranes are disclosed comprising a first polymericmaterial which defines a porous matrix, and a second polymeric material which atleast partially fills, and thereby blocks,...Membrane elementA membrane element in which, after membrane breakage or deterioration, thefiltration plate made of a thermoplastic resin can be reused to replace themembrane with a fresh one. The membrane...Membrane connectorA membrane connector ( 1 ) has a generally annular body ( 2 ) having an interiorregion ( 8 ). An elongate projection ( 10 ) projects from the body into the interiorregion ( 8 ). In use, the body...Coated membranesNovel membranes having two or more coatings of polyelectrolytes with at leastone oppositely charged adjacent pair of coatings separated by a neutral layer toreduce charge neutralization, their...Membrane filtrationA method for membrane filtration of effluent water containing suspended matterreduces membrane clogging and improves filtration capacity of the membrane.The method includes adding a dose of a...Membrane hydrophoneA method of fabricating a membrane acoustic device includes utilizing integratedcircuit fabrication techniques to form a support structure for a piezoelectricmembrane, to pattern interconnect...Membrane plateAn improved membrane plate for attaching a membrane to a roof is disclosed. Theimproved membrane plate includes a plate body portion having a bottom surfacefor disposing the bottom surface...Membrane osmometerThis invention is directed to a membrane osmometer for direct measurement ofosmotic pressures comprising a pressure measuring chamber for receiving puresolvent, a sample chamber separated...Humidifier membraneA passive humidifier membrane includes polyolefin with a plurality of pores,wherein the average pore size of the plurality of pores is 0.05 μm to 0.4 μm asestablished by a PMI Capillary Flow...Hemodialysis membraneThis invention provides method and membrane for hemodialysis which has a totalprotein permeability of not more than 0.2%, and has a reduction rate of β2-microglobulin of not less than 5%. The...Poly (1-trimethysilyl-1-propyne) membrane regeneration processA novel process for the regeneration of PTMSP membranes is disclosed. Theregeneration process includes washing a fouled PTMSP membrane with a solutioncontaining at least about 50% butanol in..._________________________________________________________________________________________________________40IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

169 US20020162784(2002)170 4629563(1986)171 US20030024881(2003)172 US20100230351(2010)173 4014665(1977)174 6528214(2003)175 5591636(1997)176 6019998(2000)177 US20090108239(2009)178 4755540(1988)179 US20060201874(2006)180 US20090325005(2009)Membrane separatorThe invention concerns a membrane separator for separating out low-colloidal andlow-molecular contaminants as well as polyvalent ions (heavy metals) fromaqueous media by means of a wound membrane...Asymmetric membranesImproved ultraporous and microporous membranes are provided with an entirelyreticulated structure free of large finger voids. The reticulated support structure hasgradually increasing pore size...Composite membranesThe present invention provides a composite membrane comprising a poroussupport layer and a selective layer comprising a vinylacetate polymer. Theinvention also provides a process for preparing a...Hydrophilic MembraneThe invention relates to an hydrophilic membrane comprising a membrane carrierand a hydrophilic coating with good properties. The coating may comprisecovalently bound inorganic-organic hybrid...Membrane process and productThere is described an improved membrane-liquid barrier system of the typecontaining complex-forming, silver-containing ion component in an aqueoussolution, and an improved process in which the...Ceramic membraneA method of manufacturing a semi-permeable ceramic membrane and a semipermeableceramic membrane made by the method, the method includingproviding a mixture of at least two non-metallic mineral...Membrane holderThe invention provides a compact device of simple construction for holding amembrane in contact with a pair of fluids, one on each side of the membrane.According to the invention, the membrane...Membrane structureA membrane structure employing a structure in which a lipid membrane is held bya hydrophilic polymer. The hydrophilic polymer layer contains an aqueous phase.There are functional molecules...Composite membraneThe present invention relates to composite ceramic membranes for use in chemicalprocesses such as the separation of molecules, sometimes referred to as molecularsieving, preferably in combination...Polymer membranePorous membranes of aromatic polymer (preferably ether ketone) are preparedwith pore size and surface area allowing use in place of asbestos membranes in hotalkaline electrolysis cells. The...Composite membraneA composite article, in an exemplary embodiment, includes a porous membraneformed from a first material, a coating formed from a second material applied to atleast a portion of the porous...Electrolytic membraneAn electrolyte membrane comprising a reinforcement structure and an ionomer isprovided. The reinforcement structure comprises a plurality of pores with adiameter of 0.3 μm to 2.5 μm as..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 41Newsletter No. 1, June 2011

181 4919810(1990)182 4935140(1990)183 3628669(1971)184 US20100181248(2010)185 7641795(2010)186 4383923(1983)187 US20090057225(2009)188 4381985(1983)189 5181941(1993)190 5972080(1999)191 5741409(1998)192 7364660(2008)193 US20040256311(2004)Porous membraneDisclosed is a porous membrane consisting of a film-forming polymercharacterized in that: (a) in at least one surface thereof, pores extending in adirection substantially perpendicular to the...Membrane and process for producing the membraneA membrane for hemodialysis is prepared by casting, extruding or spinning asolution of a polyether-polycarbonate block copolymer and a swelling agenthaving a molecular weight of about 1,000 to...Semipermeable membranesA rigid semipermeable membrane of essentially silica and apparatus and methodfor making it that includes leaching an inorganic glass film.Membrane laminateA laminate is provided comprising at least one polysulfone and/orpolyethersulfone porous membrane heat bonded to a polyvinylidene fluoridesubstrate.Membrane contactorA membrane contactor includes a housing, a stack of membrane mats, and a cap.The housing has a closed end and an open end. The closed end includes an outletport. The cap is united to the open end...Semipermeable membranesSemipermeable composite membranes consisting of a microporous substrate and asemipermeable layer built of polymer material containing urazole structures.Filtration MembraneThe invention is directed to a ultrafiltration membrane that is capable for theretention of endotoxines and cytokine inducing substances (CIS) includingbacterial DNA and/or DNA fragments from...Membrane constructionAn ion transfer membrane assembly, for electrochemical processes, is providedwhich includes a plurality of layers of capillary material and a structure forcompressing the layers together to...Membrane and separation processA novel membrane system, including a layer of platinum or palladium on graphite,is used to separate hydrogen from a hydrocarbon stream.Separation membraneSeparation membranes excellent in strength, durability, heat resistance and solventresistance as well as in balance between substance separation properties andsubstance permeability are...Sensor membranesThe present invention relates to novel electrode membrane combination. Thisnovel combination employs compounds include a linker lipid for use in attaching amembrane including a plurality of...Porous membraneA polyamide having an equilibrium water absorption of not more than 10% isused as a main material. As a polyamide having an equilibrium water absorptionof not.more than 10%, for example, a...Ultralyophobic membraneA microporous gas permeable membrane having an ultraphobic liquid contactsurface. In the invention, ultraphobic surface is provided on the liquid contactsurface of the membrane. In an embodiment..._________________________________________________________________________________________________________42IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

194 US20070141456(2007)195 4459210(1984)196 5798030(1998)197 4902308(1990)198 5209850(1993)199 US20100116727(2010)200 4556489(1985)201 US20070278145(2007)202 5051114(1991)203 5605628(1997)204 4265745(1981)205 US20020187433(2002)Bipolar membraneThe embodiments of the present invention relate to a membrane assembly for usein a galvanic cell, the membrane assembly comprising an anionic layer in contactwith an electrolyte base, a cationic...Porous membraneA porous membrane which is composed of cellulose acetate and acrylic polymer,for example, poly(methyl methacrylate) or methyl acrylate-methyl methacrylatecopolymer, is highly suitable for...Biosensor membranesThe present invention relates to a novel biosensor comprising an electrodemembrane combination. This novel biosensor employs compounds include alinker lipid for use in attaching a membrane...Composite membraneA porous composite membrane is provided comprising a film of porous, expandedpolytetrafluoroethylene whose surfaces, both exterior and within its pores, arecoated with a metal salt of a...Hydrophilic membranesNormally hydrophobic fluoropolymer porous membranes having continuous poresare rendered hydrophilic by coating the pore interior with a mixture of at least onefluoroaliphatic surfactant and at...Membrane containerModularized water separating membranes in a plural number of units areprovided. A membrane container used in a dehydration system for separatingwater from treated fluid includes a shell part 11 ...Membrane oxygenatorA novel device for mass transfer across a membrane is disclosed, which isparticularly suitable for use as a blood oxygenator. The novel device is of the typehaving a pleated, selectively...Membrane contactorA membrane contactor includes a housing, a stack of membrane mats, and a cap.The housing has a closed end and an open end. The closed end includes an outletport. The cap is united to the open end...Perfluorodioxole membranesA selectively permeable membrane for the separation or enrichment of gaseousmixtures may be formed from amorphous polymers of perfluoro-2,2-dimethyl-1,3-dioxole, especially copolymers with a...Composite membranesA composite membrane comprises an inorganic support having interstices andporous inorganic films of sintered non-metallic particles carried by the support andbridging the interstices thereof. The...Permselective membraneA permselective membrane comprising a thin permselective film of a polymericmaterial, said polymeric material being prepared by cross-linking a polyadditionproduct between a polyepoxy compound...Process for patterning a membraneA process for patterning a non-rigid membrane in a closed gap environmentincluding the optional step of applying a solvent to the non-rigid membrane,applying a layer of an energy-sensitive..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 43Newsletter No. 1, June 2011

206 7543541(2009)207 US20090159527(2009)208 4828708(1989)209 US20050173062(2005)210 3663350(1972)211 US20080166619(2008)212 6846534(2005)213 5496615(1996)214 4946592(1990)215 US20020158349(2002)216 3679059(1972)217 5967299(1999)Membrane connectorA membrane connector ( 1 ) has a generally annular body ( 2 ) having an interiorregion ( 8 ). An elongate projection ( 10 ) projects from the body into the interiorregion ( 8 ). In use, the body...Modified membraneA multilayered modified membrane and method for making the same, comprisinga modified discriminating layer that can have a fouling resistant surface, improvedsalt rejection, antimicrobial...Semipermeable membranesA reverse osmosis membrane with excellent nitrate rejection that is particularlysuitable for point-of-use drinking water purposes. The reverse osmosis membraneis a composite material comprising a...Membrane attachment processA method is provided for attaching a membrane to a substrate by heat-bonding themembrane to the substrate. The substrate includes a top surface, a bottom surfaceand a receptacle therethrough. The...Membrane systemA leakproof membrane system including an outer sheet of fluid impervious,compression set resistant, synthetic polymer resin, a synthetic fiber scrimcompletely imbedded within the outer sheet, and...Electrolytic MembraneAn object of this invention is to provide an electrolytic membrane excellent in ionconductivity and oxidation resistance, and this invention is directed to anelectrolytic membrane formed of a...Flexible membranesDescribed is a membrane comprising a microlayer polymeric composite having atleast about 10 microlayers. The microlayers are each individually up to about 100microns thick and alternate between...Waterproofing membraneAn exemplary waterproofing membrane comprises a carrier layer having a nonbituminouspressure-sensitive waterproofing adhesive, a protective layer coated onthe non-bituminous adhesive, and a...Membrane filterThe filter membrane comprises a porous structure made of a material selectedfrom sintered ceramics, sintered metals, microporous carbon, and microporousglass, and is characterized by the fact...Membrane CarburetorA membrane carburetor for an internal combustion in a portable handheld workapparatus includes a control chamber ( 3 ) delimited by a membrane ( 2 ). Thecontrol chamber ( 3 ) is connected via a...Membrane packsA gasket separator unit, for membrane packs, used in processes involvingmembrane packs used in osmosis, dialysis, and electrodialysis, comprises a mesharound the peripheral area of which is...Membrane switchA method of fabricating a membrane switch, an article of manufacture and themembrane switch, itself, are disclosed. The membrane switch is of the typeincluding a pair of insulating layers each..._________________________________________________________________________________________________________44IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

218 US20080140016(2008)219 5376442(1994)220 6583202(2003)221 4673454(1987)222 US20040013834(2004)223 US20040135274(2004)224 3989429(1976)225 4680109(1987)226 US20040116869(2004)227 US20060223894(2006)228 7380744(2008)229 4239979(1980)Membrane syringeThe syringe is a prefillable or prefilled syringe having a syringe cylinder which isdelimited to one side by a plunger and which to the other side opens into a syringeconnection having a free end...Composite membranesA composite membrane comprises an inorganic support having interstices andporous inorganic films of sintered non-metallic particles carried by the support andbridging the interstices thereof. The...Roofing membraneThis invention relates to a roofing or siding membrane comprising a non-wovenmat coated with an asphaltic composition containing, in addition to 35-75 wt. %bitumen, a mixture of isotactic and...Process for preparing bipolar membranesAn improved bipolar membrane, a precursor for said membrane and a process forpreparing bipolar membranes and precursors are described. In the process aprecursor is formed by laminating at least...Flexible membranesDescribed is a membrane comprising a microlayer polymeric composite having atleast about 10 microlayers. The microlayers are each individually up to about 100microns thick and alternate between...Microporous membraneA microporous membrane is produced by cooling a solution comprising avinylidene fluoride homopolymer or copolymer having a weight averagemolecular weight of 1×10 5 or more and a solvent...Reinforced membraneA generally annular tire curing membrane has a plurality of interconnected ribsintegrally molded on its inside surface. The ribs collectively define a plurality ofadjacent polygons. A portion of...Membrane separatorThis invention relates to a membrane separator which separates matters with asemipermeable membrane to obtain a dilute solution or a concentrated solution orboth. In such a membrane separator,...Membrane syringeThe syringe is a prefillable or prefilled syringe having a syringe cylinder which isdelimited to one side by a plunger and which to the other side opens into a syringeconnection having a free end...Ionomeric membraneAn ionomeric membrane formed of a sulphonic (per)fluorinated ionomer whereinthe sulphonic groups are at the end of short side chains (SSC), said ionomerhaving: equivalent weight between 700 and...Membrane dispenserA membrane dispenser includes a basic body having its intermediatecircumference provided with a position-limiting recess to partition the basic bodyinto a holding member at a rear portion and a...Membrane contactorContactor comprising at least two fixed studs, at least one movable stud capable ofmaking or breaking an electric contact between the two fixed studs, and at leastone membrane which can deform..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 45Newsletter No. 1, June 2011

230 4705544(1987)231 4415781(1983)232 4532175(1985)233 US20030022951(2003)234 5753093(1998)235 4734112(1988)236 US20050087070(2005)237 5290448(1994)238 US20100224553(2010)239 7807192(2010)240 4936972(1990)241 4921612(1990)Liquid membraneA liquid membrane is disclosed, which comprises a solvent, an active speciescapable of performing facilitated transport of a specific gas, and a support formaintaining a liquid mixture of the...Membrane switchA membrane switch in which switch activation produces a change in thecombined resistance and capacitance across leads of the switch.Collector membraneIn a printing apparatus using a collector membrane, certain formulations of roomtemperature vulcanizing silicone materials form membranes with superiorperformance. The preferred release...Microporous membraneA porous polymer membrane is made by dissolving a polymer consisting primarilyof vinylidene fluoride in a suitable liquid, casting the polymer solution to form athin layer on a substrate, and...Sensor membranesThe present invention relates to a novel method for producing an electrodemembrane combination. This novel method employs compounds including alinker lipid for use in attaching a membrane...Liquid membraneA liquid membrane is disclosed, which comprises a solvent, an active speciescapable of facilitated transport of a specific gas, and a support for maintaining aliquid body which has a mixture of...Separation membraneIt is an object of the present invention to provide a separation membrane in whicha film-forming solution can be prevented from reaching a rear surface of a poroussupport in a step of forming a...Polyacrylonitrile membraneAn asymmetric semipermeable membrane for dialysis and/or ultrafiltration iscomposed of a copolymer of acrylonitrile and acrylic ester and an ionic orionizable monomer in the form of a hollow...Ultrafiltration membraneThe invention relates to a hollow-fibre membrane for ultrafiltration made from ahydrophobic aromatic sulfone polymer and at least one hydrophilic polymer, themembrane having an open-pore...Biopolymeric membranesThis invention relates to a sheet membrane for repairing a damaged tissue. Themembrane includes an isotropic layer of cross-linked biopolymeric fibers in whichthe fibers are 10 to 1,000 cm in...Membrane electrolyzerThe membrane electrolyzer comprises parts which have been provided for or usedin a diaphragm electrolyzer. within a single frame of the membrane electrolyzerare contained from one to three...Asymmetrically-wettable porous membrane processAn asymmetrically-wettable, porous membrane has a hydrophilic side and ahydrophobic side. The membrane has pores which pass through the membrane toprovide communication between the hydrophilic..._________________________________________________________________________________________________________46IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

242 4935139(1990)243 3877978(1975)244 6610464(2003)245 4763495(1988)246 7399791(2008)247 4548769(1985)248 3970416(1976)249 US20080240981(2008)250 4848106(1989)Composite membranesA composite membrane comprises a porous metal support and at least one porousinorganic film of sintered non-metallic particles carried by the support andoverlying a surface thereof. The film is...Semipermeable membranesA method of improving the rejection performance of semipermeable membranesby incorporating thereinto an effective amount of a supplemental polymercontaining a substantial amount of acetyl groups....Process for patterning a membraneA process for patterning a non-rigid membrane in a closed gap environmentincluding the optional step of applying a solvent to the non-rigid membrane,applying a layer of an energy-sensitive...Compression membraneThe invention resides in a compression membrane for wringing liquid out of anobject to be compressed, characterized in that its marginal portion whose width isof the order of 15%-35% of the width...Fluorinated membranesIonomeric membranes comprising (per)fluorinated, se-micrystalline or amorphous,ionomeric polymers, having equivalent weight (EW) from 380 g/eq to 1,800 g/eq,which used in fuel cells, under the...Process for producing semipermeable membraneA process for producing a semipermeable membrane having a high flux, excellentin solute rejection and useful for reverse osmosis, ultrafiltration and the like whichcomprises dipping a...Reinforced membraneA tire curing membrane has a pattern of interconnected ribs integrally molded onits inside surface. The ribs collectively define a pattern of closely fitted,approximately equilateral hexagons...Membrane SterilizationA method for disinfecting or sterilizing an article comprising enclosing the articleor article part inside a container having a wall of which at least a part is asemipermeable fabric or membrane...Compression membraneThe invention resides in a compression membrane for wringing liquid out of anobject to be compressed, characterized in that its marginal portion whose width isof the order of 15%-35% of the width..._______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 47Newsletter No. 1, June 2011

NEWS FROM IWA HEADQUARTERSNew from IWA – the IWA Water Wiki!Invitation to Participatewww.iwawaterwiki.orgThe WaterWiki is a website providing a place for the water community to interact, share knowledge anddisseminate information online.Since the site was launched, we have been working with IWA <strong>Specialist</strong> <strong>Group</strong>s, offering them theopportunity to set up their own group work spaces on the WaterWiki – we now have over 20 <strong>Group</strong>s usingthe site to communicate and network online.Want to get involved? We would like to invite members of the Membrane Technology <strong>Specialist</strong> <strong>Group</strong> toset up their own private <strong>Group</strong> Space on the Wiki.WaterWiki <strong>Group</strong> Spaces – Why participate?Establishing a <strong>Group</strong> Space on the WaterWiki is excellent way share information within your group. You can:- Include contact details of key members in the group- Upload PDFS, Word documents, presentations etc.- Circulate minutes from meetings, events, conferences etc.- Plan upcoming events and webinars- Discuss research developments and group activitiesOnce you have established your group space on the Wiki, members can add, remove, or edit content atanytime – and we have a dedicated support team on hand to answer any technical queries.If you are a member of the Membrane Technology IWA <strong>Specialist</strong> <strong>Group</strong> and would like to establish a<strong>Group</strong> Space on the WaterWiki, please contact Victoria Beddow (vbeddow@iwap.co.uk).Open Access ArticlesThe Wiki is host to over 600 articles on water, wastewater and environmental science. There are anumber of articles of interest to the Membrane Technology group including:Membrane Bioreactor; Membrane Technology for the Treatment of Pharmaceutical Wastewater; HighPressure Membrane Filtration for Sustainable Water Treatment; Membrane bioreactors: A Global Picture;Membrane processes in wastewater treatmentWe are currently looking for new articles in your subject area. If you are able to write on an article onyour subject area (about 600–1000 words), please do contact us:Victoria BeddowIWA WaterWiki Community Managervbeddow@iwap.co.uk_________________________________________________________________________________________________________48IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 49Newsletter No. 1, June 2011

THE 2ND IWA DEVELOPMENT CONGRESSThe 2nd IWA Development Congress: Pioneering Water Solutions in Urbanising AreasWe face an impending future, where in the next 40 years approximately 800,000 new urbanresidents will be added every week to existing and new cities around the world. However, themajority of urban population growth will not occur in megacities, as many might think, but ratherin smaller cities and towns. This presents a unique opportunity to rethink service delivery in theseareas.At the same time, poorly targeted technical programmes, under investment, lack of awareness ofexisting alternatives and insufficient innovation in conventional water and sanitation servicedelivery have resulted in a world where:15% of people have no access to an improved water source (0.9 billion);50% of people have no potable in-house tap water (3.0 billion);70% of people have no sewerage (4.5 billion);80% of people have no wastewater treatment (5.5 billion).The IWA Development Congress, to be held in November in Kuala Lumpur, Malaysia, willprovide IWA members and partners with a vehicle to challenge these current conditions, workcollaboratively and develop real solutions for the future. Through these efforts, IWA aims to createa positive impact on poverty reduction, economic growth, human health and environmentalsustainability in urban centres throughout the world.The Congress builds on the success of the first Congress in Mexico City in November 2009 andprovides a meeting place for those who are already, or soon will be, leading the development of onthe-groundsolutions to urban water and sanitation services in the developing world.Now, more than ever, we need to work together to confront these challenges with vigour andinnovation. We will need game-changing thinking and action related to both urban water andsanitation technologies and service provision and their interactions with the complex social andinstitutional fabric that makes up the urban area and its sphere of influence. Business as usual is nota viable option in the light of the future we face.We would like to extend an invitation to attend the Congress to all IWA members. Workingalongside our colleagues in low and middle income countries, sharing experience and expertiseboth ways, will benefit the water and sanitation sector in the longer term and will make a tangibledifference to water and sanitation service delivery worldwide.Please visit the Congress website www.iwa2011kl.org for more details._________________________________________________________________________________________________________50IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

NEW FROM IWA PUBLISHINGMBR Book, 2nd EditionPrinciples and Applications of Membrane Bioreactors for Water and WastewaterTreatmentAuthor: Simon JuddISBN: 9781843390855 • Dec 2010 • 528 • pages • HardbackIWA members price: £ 90.00 / US$ 162.00 / € 121.50This is Co-Published with Elsevierhttp://www.iwapublishing.com/template.cfm?name=isbn9781843395188A Membrane BioReactor (MBR) is the combination of a membrane process (e.g.microfiltration/ ultrafiltration) with a suspended growth bioreactor. When used withdomestic wastewater, MBR processes can produce effluent of high enough quality to bedischarged to waterways, or to be reclaimed for urban irrigation. Other advantages ofMBRs over conventional processes include small footprint, easy retrofit and upgrade ofold wastewater treatment plants.The MBR Book covers all important aspects of Membrane BioReactors in water andwaste water treatment, from the fundamentals of the processes via design principles toMBR technologies. Industrial case studies help interpret actual results and give pointersfor best practice. Useful appendices provide data on commercial membranes andinternational membrane organizations.-----_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 51Newsletter No. 1, June 2011

Operating Large Scale Membrane Bioreactors for Municipal Wastewater TreatmentChristoph BrepolsISBN: 9781843393054 • Nov 2010 • 156 pages • PaperbackIWA members price: £ 59.25 / US$ 106.65 / € 79.99http://www.iwapublishing.com/template.cfm?name=isbn9781843393054During the last decade membrane bioreactor (MBR) technology has grown up to bestate of the art in municipal wastewater treatment. Since 1999 the Erftverband hasdesigned, tendered and commissioned three MBR for municipal wastewater treatmentin Germany, with capacities from 3,000 to 45,000 m³/d. The Erftverband was one ofthe pioneers in the full scale application of the technology regularly hosted trainingand information workshops for plant designers and operators from all over the world.Operating Large Scale Membrane Bioreactors for Municipal Wastewater Treatmentprovides hands-on information on many aspects of MBR technology based on more thanten years of practical experience in the operation of MBR plants with hollow-fibermicrofiltration units. It gives details on process configuration, investment andoperation costs based on case studies and also in comparison to data from conventionalactivated sludge (CAS) treatment processes. The book contains the most recentresearch findings as Erftverband has been collaborating on many of the major Europeanresearch projects dedicated to MBR technology.-----_________________________________________________________________________________________________________52IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Desalination TechnologyHealth and Environmental ImpactsJoseph Cotruvo, Nikolay Voutchkov, John Fawell, PierrePayment,David Cunliffe, Sabine LattemannISBN: 9781843393474 • July 2010• 240 pages • HardbackIWA members price: £ 48.00 / US$ 86.40 / € 64.80http://www.iwapublishing.com/template.cfm?name=isbn9781843393474&type=categoryDesalination Technology: Health and Environmental Impacts covers the latestdevelopments in desalination, examining the environmental and public health-relatedimpacts of these technologies. Written by international experts, the text presentsspecifications for assessing water quality, technical issues associated with desalinationtechnologies, and the chemical aspects of desalinated water and its microbiology..-----_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 53Newsletter No. 1, June 2011

Membrane Technology in Water Treatment in the Mediterranean RegionPROMEMBRANEAntonia Lorenzo and Anibal VegaISBN: 9781843393702 • Nov 2010• 196 pages • Paperback£ 63.75 / US$ 114.75 / € 86.06This title belongs to the European Water Research Serieshttp://www.iwapublishing.com/template.cfm?name=isbn9781843393702The complex dimensions of the Mediterranean freshwater resources, their fragility andtheir scarcity have been highlighted and have received considerable attention as aprimary priority issue politically, technically and scientifically. Membrane technology,with its different applications in water treatment (desalination, potable watertreatment, wastewater treatment and reuse) has showed to be a powerful tool toabate the water crisis in the Mediterranean region.The primary objective of Membrane Technology in Water Treatment in theMediterranean Region is to support the current research and development activities inmembrane technology focused on water treatment in the Mediterranean area,providing an international stage to local research organisations and universitiesdevoted to the development of membrane technologies in the following areas:municipal and industrial wastewater treatment, surface water purification and brackishand sea water treatment for drinking purpose.-----_________________________________________________________________________________________________________54IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

Biofouling of Spiral Wound Membrane SystemsJohannes Simon Vrouwenvelder, Joop Kruithof, and Mark vanLoosdrechtISBN: 9781843393634 • Mar 2011• Paperback£ 71.25 / US$ 128.25 / € 96.19http://www.iwapublishing.com/template.cfm?name=isbn9781843393634High quality drinking water can be produced with membrane filtration processes likereverse osmosis (RO) and nanofiltration (NF). As the global demand for fresh cleanwater is increasing, these membrane technologies are increasingly important. One ofthe most serious problems in RO/NF applications is biofouling – excessive growth ofbiomass – affecting the performance of the RO/NF systems. This can be due to theincrease in pressure drop across membrane elements (feed-concentrate channel), thedecrease in membrane permeability or the increase in salt passage. These phenomenaresult in the need to increase the feed pressure to maintain constant production and toclean the membrane elements chemically.Biofouling of Spiral Wound Membrane Systems relates biomass accumulation in spiralwound RO and NF membrane elements with membrane performance and hydrodynamicsand determines parameters influencing biofouling. It focuses on the development ofbiomass in the feed-concentrate (feed-spacer) channel and its effect on pressure dropand flow distribution. It can be used to develop an integral strategy to controlbiofouling in spiral wound membrane. systems.-----_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 55Newsletter No. 1, June 2011

Membrane Based Desalination: An Integrated Approach - MEDINAEnrico Drioli, Alessandra Criscuoli and Francesca MacedonioISBN: 9781843393214 • Apr 2011• 336 pages • PaperbackIWA members price: £ 78.75 / US$ 141.75 / € 106.31http://www.iwapublishing.com/template.cfm?name=isbn9781843393214Reverse Osmosis is the dominant technology in water desalination. However, somecritical issues remain open: improvement of water quality, enhancement of therecovery factor, reduction of the unit water cost, minimizing the brine disposal impact.This book aims to solve these problems with an innovative approach based on theintegration of different membrane operations in pre-treatment and post-treatmentstages. Membrane-Based Desalination: An Integrated Approach (acronym MEDINA) hasbeen a three years project funded by the European Commission within the 6thFramework Program.The project team has developed a work programme aiming to improve the currentdesign and operation practices of membrane systems used for water desalination,trying to solve or, at least, to decrease the critical issues of sea and brackish waterdesalination systems. In the book, the main results achieved in the nine Work Packagesconstituting the project will be described, and dismissed by the leaders of the variousWPs.-----_________________________________________________________________________________________________________56IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011

SELECTED RESEARCH REPORTSMembrane Treatment of Secondary EffluentWERF Report 01-CTS-6aAuthors: Roderick ReardonPublication Date: May 2007• 9781843397595Pages: 320 • PaperbackIWA members price: £ 77.25 / US$ 139.05 / € 104.29http://www.iwapublishing.com/template.cfm?name=isbn1843397595Sustainable Technology for Achieving Very Low Nitrogen and Phosphorus EffluentLevelsWERF Report 02-CTS-1Author(s): Krishna PagillaPublication Date: Aug 2009• ISBN: 9781843397892Pages: 400 • PaperbackIWA members price: £ 77.25 / US$ 139.05 / € 104.29http://www.iwapublishing.com/template.cfm?name=isbn9781843397892-----For more information on IWA Publishing products or to buy online visitwww.iwapublishing.comOr contact one of IWA Publishing's distributors:UK, Europe and Rest of World:Portland Customer ServicesCommerce WayColchesterCO2 8HP, UKTel: +44 (0)1206 796 351Fax: +44 (0)1206 799 331Email: sales@portland-services.comNorth America:BookMasters, Inc.P.O. Box 388AshlandOH 44805, USATel: +1 800 247-6553 (+1 419 281-1802 from Canada)Fax: +1 419 281-6883Email: order@bookmasters.com_______________________________________________________________________________________________________IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology: 57Newsletter No. 1, June 2011

WE WANT HEAR FROM YOU!Thank you to all contributors to this Newsletter. Please send any information and articlesrelating to Membrane Technology for Water and Wastewater Treatment Issues to the editors:Vigid S. VigneswaranProfessor/DirectorCentre for Technology in Water and WastewaterUniversity of Technology, SydneySydney, AustraliaVigid.Vigneswaran@eng.uts.edu.auKuo-Lun (Allan) TungProfessor/DirectorR&D Center for Membrane TechnologyChung Yuan UniversityTaoyuan, Taiwankuolun@cycu.edu.twIWA Head Office:Alliance House12 Caxton StreetLondon SW1H 0QSUKTel: +44 207 654 5500Fax: +44 207 654 5555Web site: http://www.iwahq.org/General e-mail: water@IWAhq.orgMembership e-mail: members@iwahq.orgIWA Global Operational Office:Bezuidenhoutseweg 602594 AW The HagueThe NetherlandsTel: +31 (703) 150 788Fax: +31 (703) 150 799Web Site: http://www.iwahq.org/General e-mail: water@IWAhq.orgCompany registered in England No. 3597005Registered Charity (England) No. 1076690_________________________________________________________________________________________________________58IWA <strong>Specialist</strong> <strong>Group</strong> on Membrane Technology:Newsletter No. 1, June 2011