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  • anaerobic treatment of municipal wastewater with a staged anaerobic fluidized membrane bioreactor (saf-mbr) system

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 943
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a laboratory-scale staged anaerobic fluidized membrane bioreactor (saf-mbr) system was used to treat a municipal wastewater primary-clarifier effluent. it was operated continuously for 192 days at 6–11 l/m2/h flux and trans-membrane pressure generally of 0.1 bar or less with no fouling control except the scouring effect of the fluidized granular activated carbon on membrane surfaces. with a total hydraulic retention time of 2.3 h at 25 °c, the average effluent chemical oxygen demand and biochemical oxygen demand concentrations of 25 and 7 mg/l yielded corresponding removals of 84% and 92%, respectively. also, near complete removal of suspended solids was obtained. biosolids production, representing 5% of the cod removed, equaled 0.049 g vss/g bod5removed, far less than the case with comparable aerobic processes. the electrical energy required for the operation of the saf-mbr system, 0.047 kwh/m3, could be more than satisfied by using the methane produced.

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