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题名: Microbial electrolysis contribution to anaerobic digestion of waste activated sludge, leading to accelerated methane production
作者: Liu, Wenzong; Cai, Weiwei; Guo, Zechong; Wang, Ling; Yang, Chunxue; Varrone, Cristiano; Wang, Aijie
刊名: RENEWABLE ENERGY
出版日期: 2016-06
卷号: 91, 页码:334-339
关键词: Microbial electrolysis AD reactor ; Waste activated sludge ; Energy recovery ; Bio-electron ; Methanogenesis
DOI: 10.1016/j.renene.2016.01.082
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: Methane production rate (MPR) in waste activated sludge (WAS) digestion processes is typically limited by the initial steps of complex organic matter degradation, leading to a limited MPR due to sludge fermentation speed of solid particles. In this study, a novel microbial electrolysis AD reactor (ME-AD) was used to accelerate methane production for energy recovery from WAS. Carbon bioconversion was accelerated by ME producing H-2 at the cathode. MPR was enhanced to 91.8 gCH(4)/m(3) reactor/d in the microbial electrolysis ME-AD reactor, thus improving the rate by 3 times compared to control conditions (30.6 gCH(4)/m(3) reactor/d in AD). The methane production yield reached 116.2 mg/g VSS in the ME-AD reactor. According to balance calculation on electron transfer and methane yield, the increased methane production was mostly dependent on electron contribution through the ME system. Thus, the use of the novel ME-AD reactor allowed to significantly enhance carbon degradation and methane production from WAS. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36135
Appears in Collections:中国科学院环境生物技术重点实验室_期刊论文

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