期刊
BIORESOURCE TECHNOLOGY
卷 269, 期 -, 页码 339-345出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.08.122
关键词
Membrane bioreactor; Microbial fuel cell; Membrane fouling; Electric field; Energy allocation
资金
- National Natural Science Foundation of China [51578375, 51638011]
- China Postdoctoral Science Foundation [2017M621081]
- Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China [IRT-17R80]
- China Scholarship Council [201609345007, 201709345009]
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.
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