期刊
CHEMICAL ENGINEERING JOURNAL
卷 321, 期 -, 页码 375-383出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.03.134
关键词
AnOMEBR; AnOMBR; Salinity accumulation; Membrane fouling; Methane generation
资金
- National Natural Science Foundation of China [51278079]
Anaerobic forward osmosis membrane bioreactor coupled with microbial electrolysis cell (AnOMEBR) was designed for the treatment of synthetic wastewater while magnesium acetate was used as the draw solution. Then the effect of electric field in AnOMEBR was assessed in terms of the reverse osmosis of draw solute, the mitigation of membrane fouling and energy recovery. Results showed that the conductivity increasing rate was about 0.08 ms/(cm.d) in AnOMEBR which was lower than that in AnOMBR without electric field (0.11 ms/(cm.d)). Lower membrane fouling propensity was obtained in AnOMEBR, and its membrane operation cycle was about 1.27 times as long as that in AnOMBR. The methane yield of AnOMEBR was about 0.281 L/g COD, and it almost increased by 11.07% compared with AnOMBR. Besides, the increasing methane yield could compensate for the extra power consumption in AnOMEBR, and about 0.537 kJ per day positive energy gain could be obtained. (C) 2017 Published by Elsevier B.V.
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