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Preliminary study of osmotic membrane bioreactor : effects of draw solution on water flux and air scouring on fouling

(2010) WATER SCIENCE AND TECHNOLOGY. 62(6). p.1353-1360
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Abstract
Preliminary study on a novel osmotic membrane bioreactor (OMBR) was explored. Objective of this study was to investigate the effects of draw solution on membrane flux and air scouring at the feed side on fouling tendency in a pilot OMBR system composing the anoxic/aerobic and forward osmosis (FO) processes. Domestic sewage was the raw feed, FO membrane from HTI and NaCl/MgSO(4) draw solutions were used in the experiments. Fluxes of 3l/m(2)/h (LMH) and 7.2 LMH were achieved at osmotic pressure of 5 and 22.4 atm, respectively. No significant flux decline was observed at 3 LMH over 190 h and at 7.2 LMH over 150 h when air scouring was provided at the feed side of the membrane. However, without air scouring, the flux at 22.4 atm osmotic pressure declined by 30% after 195 h and then levelled off. The potential advantages of the fouling reversibility with air scouring under the operating conditions of the pilot OMBR and better water quality in OMBR over the conventional MBR were preliminarily demonstrated.
Keywords
air scouring, draw solution, forward osmosis, fouling, membrane bioreactor, water reuse, DIRECT OSMOSIS DESALINATION, CONCENTRATION POLARIZATION, ACTIVATED-SLUDGE, COST

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Chicago
Qin, Jian-Jun, Kiran A Kekre, Maung H Oo, Guihe Tao, Chee L Lay, Cheun H Lew, Emile Cornelissen, and Chris Ruiken. 2010. “Preliminary Study of Osmotic Membrane Bioreactor : Effects of Draw Solution on Water Flux and Air Scouring on Fouling.” Water Science and Technology 62 (6): 1353–1360.
APA
Qin, J.-J., Kekre, K. A., Oo, M. H., Tao, G., Lay, C. L., Lew, C. H., Cornelissen, E., et al. (2010). Preliminary study of osmotic membrane bioreactor : effects of draw solution on water flux and air scouring on fouling. WATER SCIENCE AND TECHNOLOGY, 62(6), 1353–1360.
Vancouver
1.
Qin J-J, Kekre KA, Oo MH, Tao G, Lay CL, Lew CH, et al. Preliminary study of osmotic membrane bioreactor : effects of draw solution on water flux and air scouring on fouling. WATER SCIENCE AND TECHNOLOGY. 2010;62(6):1353–60.
MLA
Qin, Jian-Jun, Kiran A Kekre, Maung H Oo, et al. “Preliminary Study of Osmotic Membrane Bioreactor : Effects of Draw Solution on Water Flux and Air Scouring on Fouling.” WATER SCIENCE AND TECHNOLOGY 62.6 (2010): 1353–1360. Print.
@article{8557112,
  abstract     = {Preliminary study on a novel osmotic membrane bioreactor (OMBR) was explored. Objective of this study was to investigate the effects of draw solution on membrane flux and air scouring at the feed side on fouling tendency in a pilot OMBR system composing the anoxic/aerobic and forward osmosis (FO) processes. Domestic sewage was the raw feed, FO membrane from HTI and NaCl/MgSO(4) draw solutions were used in the experiments. Fluxes of 3l/m(2)/h (LMH) and 7.2 LMH were achieved at osmotic pressure of 5 and 22.4 atm, respectively. No significant flux decline was observed at 3 LMH over 190 h and at 7.2 LMH over 150 h when air scouring was provided at the feed side of the membrane. However, without air scouring, the flux at 22.4 atm osmotic pressure declined by 30\% after 195 h and then levelled off. The potential advantages of the fouling reversibility with air scouring under the operating conditions of the pilot OMBR and better water quality in OMBR over the conventional MBR were preliminarily demonstrated.},
  author       = {Qin, Jian-Jun and Kekre, Kiran A and Oo, Maung H and Tao, Guihe and Lay, Chee L and Lew, Cheun H and Cornelissen, Emile and Ruiken, Chris},
  issn         = {0273-1223},
  journal      = {WATER SCIENCE AND TECHNOLOGY},
  keyword      = {air scouring,draw solution,forward osmosis,fouling,membrane bioreactor,water reuse,DIRECT OSMOSIS DESALINATION,CONCENTRATION POLARIZATION,ACTIVATED-SLUDGE,COST},
  language     = {eng},
  number       = {6},
  pages        = {1353--1360},
  title        = {Preliminary study of osmotic membrane bioreactor : effects of draw solution on water flux and air scouring on fouling},
  url          = {http://dx.doi.org/10.2166/wst.2010.426},
  volume       = {62},
  year         = {2010},
}

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