Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes.

Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes. Research Abstract Details 

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Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes. Abstract Text:

Fengshen Fan,Hongde Zhou,Hadi Husain,Fengshen Fan,Hongde Zhou,Hadi Husain,

Chemical coagulation with ferric chloride, alum, and an organic polymer were used to control the fouling potential of mixed liquors for submerged membrane bioreactor (MBR) processes in treating municipal wastewater. Their filterability was evaluated using a submerged hollow fiber ultrafiltration apparatus operated in constant permeate flux mode. The collected transmembrane pressures over filtration time were used to calculate the membrane fouling rates. The results showed that coagulation pretreatment can reduce fouling rates when MBRs were operated above the critical flux. Even though coagulation with the organic polymer formed larger mixed liquor suspended solids particles and had shorter time-to-filtration than those with ferric chloride and alum, the filterability for membrane filtration were similar, indicating that the membrane fouling in MBR systems was mainly controlled by the concentration of smaller colloidal particles.

Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes. Publishing Authors By Initials

F Fan,H Zhou,H Husain,F Fan,H Zhou,H Husain,

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Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Water environment research : a research publicatio

VOLUME: 79

Page Numbers: 952-7

Journal Abbreviation: Water Environ. Res.

ISSN: 1061-4303

DAY: 3

MONTH: Sep

YEAR: 2007

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LANGUAGE: eng

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Grant and Affiliation Information for Use of chemical coagulants to control fouling potential for wastewater membrane bioreactor processes.

AFFILIATION: School of Engineering, University of Guelph, Guelph, Ontario, Canada.

Country: United States

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MEDLINETA: Water Environ Res

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