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Study on Sludge Growth in Membrane Bioreactor Ractor
Author(s): 
Pages: 124-126,133
Year: Issue:  12
Journal: Environmental Science and Management

Keyword:  MBR污泥增长活性污泥法污泥产量;
Abstract: 研究了不同进水有机物浓度下MBR反应器的污泥增长和活性变化的规律,并确定了本系统三个运行阶段活性污泥增长的动力学系数(Yg和ms).结果表明,MBR长时间不排泥和低负荷的运行方式会使污泥的活性下降和微生物种群的改变,在低负荷下运行时会出现污泥的负增长.根据经典的微生物能量代谢理论并结合各个运行阶段污泥浓度的变化情况计算得到进水COD 300、180和120 mg/L下MBR的Yg和ms的值,分别为0.42、0.39、0.24(gVSSgCOD-1)和0.11、0.06、0.08(gCODgVSS-1day-1).
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