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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Impacts of energy distribution and electric field on membrane fouling control in microbial fuel cell-membrane bioreactor (MFC-MBR) coupling system
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Impacts of energy distribution and electric field on membrane fouling control in microbial fuel cell-membrane bioreactor (MFC-MBR) coupling system

机译:能量分布与电场对微生物燃料电池 - 膜生物反应器(MFC-MBR)耦合系统膜污染对照的影响

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摘要

To investigate the influence of energy allocation on membrane fouling, three coupling systems at different concentrations of mixed liquid suspended solids (MLSS) and a control system without microbial fuel cell (MFC) were established. The results show that MFC acted negative effect in low-loading stage (0.59 kg-COD.m(-3).d(-1)), while high MLSS acted active effect on organics degradation in high-loading stage (2.00 kg-COD.m(-3).d(-1)), and electric field could be a positive factor with sufficient energy. Besides, membrane filtration experiments in the electric field with microbial contaminants indicate that soluble microbial products (SMP) and loosely bound extracellular polymeric substances (LB-EPS) had greater tendencies to cause irreversible membrane fouling. SMP and the residual cell liquid (Cell) were more susceptible than extracellular polymeric substances (EPS), demonstrating that the irreversible fouling was reduced mainly due to SMP decrease in the electric field.
机译:为了研究能量分配对膜污染的影响,建立了不同浓度的混合液悬浮固体(MLS)的三种偶联系统和没有微生物燃料电池(MFC)的控制系统。 结果表明,MFC在低负载阶段(0.59kg-COD.M(-3).D(-1))作用负面影响,而高MLSS对高负荷阶段的有机物降解作用有效效果(2.00 kg- COD.M(-3).d(-1)),电场可以是具有足够能量的正因素。 此外,具有微生物污染物的电场中的膜过滤实验表明可溶性微生物产物(SMP)和松散地结合的细胞外聚合物物质(LB-EPS)具有更大的倾向导致不可逆的膜污垢。 SMP和残留细胞液(细胞)比细胞外聚合物(EPS)更容易受到影响,证明不可逆污染主要是由于电场的SMP减少而降低。

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