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题名: Methane production enhancement by an independent cathode in integrated anaerobic reactor with microbial electrolysis
作者: Cai, Weiwei; Han, Tingting; Guo, Zechong; Varrone, Cristiano; Wang, Aijie; Liu, Wenzong
刊名: BIORESOURCE TECHNOLOGY
出版日期: 2016-05
卷号: 208, 页码:13-18
关键词: Anaerobic digestion ; Methane ; Energy recovery ; Methanogenesis ; Cathode
DOI: 10.1016/j.biortech.2016.02.028
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: Anaerobic digestion (AD) represents a potential way to achieve energy recovery from waste organics. In this study, a novel bioelectrochemically-assisted anaerobic reactor is assembled by two AD systems separated by anion exchange membrane, with the cathode placing in the inside cylinder (cathodic AD) and the anode on the outside cylinder (anodic AD). In cathodic AD, average methane production rate goes up to 0.070 mL CH4/mL reactor/day, which is 2.59 times higher than AD control reactor (0.027 m(3) CH4/m(3)/d). And COD removal is increased similar to 15% over AD control. When changing to sludge fermentation liquid, methane production rate has been further increased to 0.247 mL CH4/mL reactor/day (increased by 51.53% comparing with AD control). Energy recovery efficiency presents profitable gains, and economic revenue from increased methane totally self-cover the cost of input electricity. The study indicates that cathodic AD could cost-effectively enhance methane production rate and degradation of glucose and fermentative liquid. (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/311016/36133
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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