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  • Title: Effects of flux enhancing polymer on the characteristics of sludge in membrane bioreactor process.
    Author: Yoon SH, Collins JH, Musale D, Sundararajan S, Tsai SP, Hallsby GA, Kong JF, Koppes J, Cachia P.
    Journal: Water Sci Technol; 2005; 51(6-7):151-7. PubMed ID: 16003973.
    Abstract:
    A newly developed membrane performance enhancer (MPE) was used to prevent membrane fouling in a membrane bioreactor (MBR) process. It transpired that 1,000 mg/l of MPE reduced polysaccharide levels from 41 mg/I to 21 mg/I on average under the experimental condition. Repeated experiments also confirmed that 50-1,000 mg/l of MPE could reduce membrane fouling significantly and increase the intervals between membrane cleanings. Depending on MPE dosages and experimental conditions, trans-membrane pressure (TMP) increase was suppressed for 20-30 days, while baseline TMP surged within a few days. In addition, MPE allowed MBR operation even at 50,000 mg/l of total solid and reduced permeate COD. However, no evidence of toxicity for sludge was found from respiratory works.
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