NAMS 2002 Workshop - ICOM 2008

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[2] P. Vandezande, L.E.M. Gevers, J.S. Paul, I. F.J. Vankelecom, P. A. Jacobs. Journal of Membrane Science 250 (2005) 305-310. [3] J. M. Serra, A. Corma, S. Valero, E. Argente, V. Botti. QSAR and Combinatorial Science 26 (2007) 11-26.
Drinking and Wastewater Applications IV – 5 Thursday July 17, 11:00 AM-11:30 AM, Honolulu/Kahuku Study of an External MBR for Degradation of Endocrine Disrupter 17(alpha)-ethinylestradiol L. Clouzot (Speaker), University of Aix-Marseille, France B. Marrot, University of Aix-Marseille, France - benoit.marrot@univ-cezanne.fr P. Doumenq, University of Aix-Marseille, France N. Roche, University of Aix-Marseille, France The xenobiotic 17±-ethinylestradiol (EE2), a common oral contraceptive component, is an endocrine disrupter with fish feminization induced at concentrations as low as 0.1 ng.L -1 . EE2 occurrence in the aquatic environment (0.5-5 ng.L -1 ) is due to inefficient removal in municipal wastewater treatment plants (WWTPs). EE2 biodegradation is achieved by nitrifying micro- organisms (autotrophic biomass), characterized by slow growth. Therefore, EE2 removal requires activated sludge (AS) with a high sludge retention time (SRT). However, in WWTPs, there is often an incomplete separation of water and AS, resulting in low biomass concentrations and low SRTs. Membrane bioreactors (MBRs), with a complete physical retention of AS, are a promising solution to enhance EE2 degradation. During the past 10 years, an exponential increase in MBRs research and literature has been observed worldwide. Membrane fouling is a key issue that has slowed MBR technology commercialization; however, a significant increase in the breadth of application areas is anticipated. The aim of this study is to use MBR technology to improve EE2 elimination during municipal wastewater treatment. First, nitrifying AS acclimation was developed to obtain a specific biomass effective for EE2 degradation. Subsequently, purification of a synthetic wastewater containing EE2 will be tested in an external MBR with the acclimated AS. External MBR configuration has been selected because it results in a more effective biomass, and fouling is easier to control. Compared to immersed MBRs, floc size is smaller in external MBRs, providing a greater exposed surface area. To limit fouling during purification experiments, operational MBR conditions were optimized beforehand; hydrodynamics parameters and flux were adjusted. Acclimation of nitrifying AS from municipal WWTPs was developed in an 80 L immersed MBR with a SRT of 30 days. An immersed MBR provides a less harsh environment for AS acclimation because the bacteria are not recycled through a pump (as is the case for external MBRs). Autotrophic characteristics of the biomass required a culture media composed of NaHCO3 (inorganic carbon source), (NH4)2SO4 (energy and nitrogen source) and mineral salt supplements (MgSO4, KH2PO4, CaCl2). The pH was controlled at 7 by automatic titration with NaHCO3. Biodegradation experiments were performed after 96 days of acclimation, with EE2 concentrations of 1 mg.L -1 , 500 µg.L -1 and 250 µg.L -1 . Sample analysis is currently underway. Membrane fouling
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ICOM 2008 Oral Presentation Proceed
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Professor Yoram Cohen Professor Joh
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ICOM 2008 Staff: The University of
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ICOM 2008 Workshop Schedule: Saturd
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Monday, July 14 - Afternoon Session
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Tuesday, July 15 - Afternoon Sessio
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8:15AM 8:35AM EMS Barrer Prize (Mau
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Friday, July 18 - Morning Sessions
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Oral Presentation Abstracts Morning
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Gas Separation I - 1 - Keynote Mond
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esulting permeability selectivity o
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chain packing. To ensure a well pha
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Gas Separation I - 5 Monday July 14
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satisfactory way the corresponding
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Drinking and Wastewater Application
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an adjusted water management in the
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prospect for new energy sources as
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oxygen removal to the desired pH. C
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(Cl - , SO4 2- , As(V)) and water t
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[1] R. Lima de Miranda, J. Kruse, K
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Polymeric Membranes I - 4 Monday Ju
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Polymeric Membranes I - 5 Monday Ju
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Biomedical and Biotechnology I - 1
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Acknowledgments The Authors acknowl
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isolation of CD34+ cells was achiev
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membranes were then challenged with
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in crossflow mode operation were in
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hydroxide. For Mg/Ca = 0, the fouli
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improvement of filterability also t
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scale where fouling rates are commo
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observed in two subsequence phenome
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Membrane Modeling I - Fundamental A
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Membrane Modeling I - Fundamental A
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of the impact of the operating para
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Oral Presentation Abstracts Afterno
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Hybrid and Novel Processes I - 2 Mo
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Arora, M.B., J.A. Hestekin, S.W. Sn
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Conclusions Reverse electrodialysis
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energy recovery. This is a remarkab
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eaction with mediator due to the co
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Nanofiltration and Reverse Osmosis
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4.3x10 -6 to 7.4x10 -6 cm 2 /s. Bas
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The development of these membranes
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permeability, defined as water perm
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supports including charged (PSF/SPE
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[4] L. M. Robeson, Journal of Membr
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y conventional polymers and provide
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[3] P.M. Budd, K.J. Msayib, C.E. Ta
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Nanostructured Membranes I - 5 Mond
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Fuel Cells I - 1 Monday July 14, 2:
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investigated at first. As a result,
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Desalination I - 2 Monday July 14,
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Composite Polymeric Membrane Format
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NAMS Alan S. Michaels Award - 1a Tu
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NAMS Alan S. Michaels Award - 2 Tue
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opportunities for improving membran
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NAMS Alan S. Michaels Award - 4b Tu
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[4] K. Vanherck et al. Accepted for
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accumulation had a strong effect on
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and, if so, to develop correlations
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non-porous and porous membranes are
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[2] Palmeri, J., Sandeaux, R. Sande
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fouling. Information obtained from
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This work performed under the auspi
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etween Ru(bi-pyridine)3 2+ and meth
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[1] M. Barboiu, C. Luca, C. Guizard
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Nanostructured Membranes II - 5 Tue
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Nanostructured Membranes II - 6 Tue
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than 10 nm. XRD data suggest that t
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Pervaporation and Vapor Permeation
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ethanol/butanol (non solvent) combi
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forward osmosis, the RO process is
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Osmotically Driven Membrane Process
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References: [1] Stupp, S. I.; Lebon
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temperatures might bring about the
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References [1] S. Benita, Microenca
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solvent, were investigated (where a
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ease of manipulation as this allows
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Horizontal shrinkage does not have
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Absorption of water was determined
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Gas Separation II - 1 - Keynote Tue
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Gas Separation II - 2 Tuesday July
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concentration. These results are co
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Gas Separation II - 5 Tuesday July
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will be shown that homogeneous film
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which can adsorb on the surface of
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were collected, the viable bacteria
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pressure, and permporosimetry with
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Inorganic Membranes I - 3 Tuesday J
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Membrane Fouling - UF & Water Treat
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Membrane Modeling II - Gas Separati
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[10] Wang BG, Lv HL, Yang JC. Chem
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Membrane and Surface Modification I
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Oral Presentation Abstracts Morning
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Gas Separation III - 1 - Keynote We
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Gas Separation III - 2 Wednesday Ju
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separation was next blended with di
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Polymeric Membranes II - 1 - Keynot
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Polymeric Membranes II - 3 Wednesda
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5. Erdodi, G.; Kennedy, J. P.; Prog
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observed for different locations in
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Biomedical and Biotechnology II - 3
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applied in the first two fields wil
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distribution of SBMA units within t
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5500 ppm (15 mM) was lowered to 30
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increasing the effective size of th
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etween 0 and 1), the automatic feed
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Membrane Modeling III - Process Sim
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Membrane Modeling III - Process Sim
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models developed suggests that ther
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Page 347 and 348: therapy options have been modelled
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Page 397 and 398: 5. Conclusion In this work, the evo
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Page 407 and 408: References Arora, M.B., J.A. Hestek
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Membrane Fouling III - RO & Biofoul
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[4] H. Noureddini, Book of Abstract
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component (PX, OX) separation via p
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Generally these results were in goo
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introduction of methyl groups into
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separation quality (10 µS/cm) and
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Desalination II - 3 Thursday July 1
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drop are linearly related (although
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antiscalant oxidation has been limi
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oth 15±5 kDa, which suggests that
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Atomic Force Microscopy (AFM), and
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y single gas permeation experiments
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PDMS toplayers were only partially
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noting that cross-linking agents co
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such extended parameter space in th
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Hybrid Membranes - 6 Thursday July
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Plenary Lecture III Friday July 18.
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Gas Separation V - 1 - Keynote Frid
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References: [1] H. Lin, E. Van Wagn
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elative contributions of Fickian di
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Gas Separation V - 4 Friday July 18
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Gas Separation V - 6 Friday July 18
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Electron Microscopy (TEM) analyses
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- Hybrid RO train: A hybrid RO trai
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concentration as well as on the sod
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scaling deposits in the DCMD device
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Silica colloidal solution with diff
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Membrane Fouling IV - RO & Desalina
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Polyacrylonitrile (PAN) UF membrane
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the polymer dope was PEI (12 wt%),
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Inorganic Membranes III - 1 - Keyno
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Inorganic Membranes III - 2 Friday
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CO2/H2 selectivity at high temperat
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ammonia complexes in aqueous soluti
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possible to have a membrane capable
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fired boiler flue gas, SOx and merc
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EPR/Ago/p-benzoquinone composite sh
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elated to the presence of free elec
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surroundings. When the temperature
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that no absorbent was detected in t
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days of filtration from 120 to 7-10
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was performed to restore membrane f
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with the SRT of 65 days, no correla
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Results Critical flux measurements
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MLSS is not directly proportional t
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Fuel Cells III - 2 Friday July 18,
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Fuel Cells III - 4 Friday July 18,
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Ultra- and Microfiltration III - Me
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can be deduced from the imaginary p
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membranes. The analysis of the ligh
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Membrane Contactors - 2 Friday July
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absorption liquid in the pores of t
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Packaging and Barrier Materials - 1
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Historically, all the approaches de
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