NAMS 2002 Workshop - ICOM 2008

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Membrane Fouling - General Topics – 2 Monday July 14, 10:15 AM-10:45 AM, O’ahu Assessment of Ultrasound as Fouling Control Technique in Crossflow Microfiltration for the Treatment of Produced Water S. Silalahi (Speaker), Norwegian University of Science and Technology, Norwegian, sumihar.silalahi@ntnu.no T. Leiknes, Norwegian University of Science and Technology, Norwegian Produced water is contaminated water containing residual concentrations of chemical additives, dispersed oil in water (o/w) emulsions, dissolved organic compounds, traces of heavy metals and inorganic compounds, which is extracted during oil and gas drilling operations. In 2005, the total amount of produced water discharged to the North Sea was about 177 million m 3 , resulting in approximately 2800 m 3 of oil being discharged to the sea. Regulations that govern the allowable discharge of oil into sea from offshore installation on the Norwegian Continental Shelf (NCS) were 40 mg/l of oil in water (up to end of 2006) and is currently 30 mg/l. More stringent regulations are expected in the future. Membrane separation has the potential for very effective separation of oil from water. It has been applied for the treatment of produced water and oily wastewaters. The major drawback of membrane technology is the fouling phenomena, which in the long term will cause a progressive decrease of flux and induce a loss of separation efficiency. Fouling mitigation has been approached by; feed pre-treatment, modified membrane surface material, flow manipulations (i.e. backpulsing, flow reversal, turbulence promoters etc.), applying additional force fields (i.e. electrical fields and ultrasound fields). Fouling can also be limited by operating the membrane under certain hydrodynamic conditions. Ultrasound is a potential technique that can be used for membrane fouling control and cleaning. The advantages of US to control membrane fouling are no chemical use and no interruption during filtration. US dislodges fouling layers formed on the membrane due to effects such as acoustic streaming, microstreaming, microstreamers, microjets, and shock waves. The objective of this study is to asses US for fouling control for treatment of produced water. The effectiveness of ultrasound-assisted membrane filtration was determined by various parameters i.e. ultrasound frequency and power, feed properties, membrane properties and operation condition. An analogue produced water was prepared by dispersing oil in surfactant and water. Solid particles, scaling and corrosion inhibitor were also added to make-up the analogue for Ceramic Al2O3 membrane with pore sizes of 0.1, 0.2 and 0.5µm
in crossflow mode operation were investigated. US with frequencies 25, 45, and 100 kHz respectively and power intensity of 600W were tested. The effect of power intensity, frequency, mode of US operation (continuous vs. intermittent) for different membrane pore sizes will be presented. Tests are done with different feed properties. An optimum power intensity and frequency to control the fouling was observed. Presence of particles plays a significant role to reduce the performance by attenuating the ultrasound power. Keywords: Produced water, microfiltration, fouling, ultrasound
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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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Page 15 and 16: Friday, July 18 - Morning Sessions
Page 17 and 18: Oral Presentation Abstracts Morning
Page 19 and 20: Gas Separation I - 1 - Keynote Mond
Page 21 and 22: esulting permeability selectivity o
Page 23 and 24: chain packing. To ensure a well pha
Page 25 and 26: Gas Separation I - 5 Monday July 14
Page 27 and 28: satisfactory way the corresponding
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Page 35 and 36: an adjusted water management in the
Page 37 and 38: prospect for new energy sources as
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Page 43 and 44: [1] R. Lima de Miranda, J. Kruse, K
Page 45 and 46: Polymeric Membranes I - 4 Monday Ju
Page 47 and 48: Polymeric Membranes I - 5 Monday Ju
Page 49 and 50: Biomedical and Biotechnology I - 1
Page 53 and 54: Acknowledgments The Authors acknowl
Page 55 and 56: isolation of CD34+ cells was achiev
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Page 71 and 72: Membrane Modeling I - Fundamental A
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Page 83 and 84: Conclusions Reverse electrodialysis
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Fuel Cells I - 4 Monday July 14, 4:
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Fuel Cells I - 5 Monday July 14, 4:
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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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Nanofiltration and Reverse Osmosis
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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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Drinking and Wastewater Application
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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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start level has a huge impact on th
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Ultra- and Microfiltration I - Tran
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all three binary protein UF systems
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Synthetic solutions of ±-lactalbum
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Oral Presentation Abstracts Morning
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Gas Separation IV - 2 Thursday July
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6. T. C. Merkel, Z. He, I. Pinnau,
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EMS Barrer Prize - 1b Thursday July
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EMS Barrer Prize - 3 Thursday July
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EMS Barrer Prize - 4b Thursday July
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EMS Barrer Prize - 5 Thursday July
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therapy options have been modelled
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Ultra- and Microfiltration II - Pro
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in the vicinity of the rising bubbl
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of feed water ionic strength) on re
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technology that has gained growing
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Optimize polymeric membranes for sa
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Inorganic Membranes II - 2 Thursday
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confirms that the carbon dioxide pe
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permeability, stability issues comp
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Fuel Cells II - 2 Thursday July 17,
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5. Conclusion In this work, the evo
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Oral Presentation Abstracts Afterno
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an essentially pure H2 product is c
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In the presentation, we will presen
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was observed, indicative of the sim
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References Arora, M.B., J.A. Hestek
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performance of fibers is analyzed a
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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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