An MEC-MR-Coupled System for Biohydrogen Production from Acetate

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	An MEC-MR-Coupled System for Biohydrogen Production from Acetate
	Sun, Min; Sheng, Guo-Ping; Zhang, Lei; Xia, Chang-Rong; Mu, Zhe-Xuan; Liu, Xian-Wei; Wang, Hua-Lin; Yu, Han-Qing; Qi, Rong; Yu, Tao
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2008-11-01
卷号	42 期号:21 页码:8095-8100
英文摘要	Microbial fuel cells (MFCs) are devices that use bacteria as the catalysts to oxidize organic and inorganic matter and generate current, whereas microbial electrolysis cells (MECs) are a reactor for biohydrogen production by combining MFC and electrolysis. In an MEC, an external voltage must be applied to overcome the thermodynamic barrier. Here we report an MEC-MFC-coupled system for biohydrogen production from acetate, in which hydrogen was produced in an MEC and the extra power was supplied by an MFC. In this coupled system, hydrogen was produced from acetate without external electric power supply. At 10 mM of phosphate buffer, the hydrogen production rate reached 2.2 +/- 0.2 mL L-1 d(-1), the cathodic hydrogen recovery (R-H2) and overall systemic Coulombic efficiency (CEsys) were 88 similar to 96% and 28 similar to 33%, respectively, and the overall systemic hydrogen yield (Y-sysH2) peaked at 1.21 mol H-2 mol-acetate(-1). The hydrogen production was elevated by increasing the phosphate buffer concentration, and the highest hydrogen production rate of 14.9 +/- 0.4 mL L-1 d(-1) and Y-sysH2 of 1.60 +/- 0.08 mol-H-2 mol-acetate(-1) were achieved at 100 mM of phosphate buffer. The performance of the MEC and the MFC was influenced by each other. This MEC-MFC-coupled system has a potential for biohydrogen production from wastes, and provides an effective way for in situ utilization of the power generated from MFCs.
WOS记录号	WOS:000260561200061
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22205]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Sun, Min,Sheng, Guo-Ping,Zhang, Lei,et al. An MEC-MR-Coupled System for Biohydrogen Production from Acetate[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2008,42(21):8095-8100.
APA	Sun, Min.,Sheng, Guo-Ping.,Zhang, Lei.,Xia, Chang-Rong.,Mu, Zhe-Xuan.,...&Yang, Min.(2008).An MEC-MR-Coupled System for Biohydrogen Production from Acetate.ENVIRONMENTAL SCIENCE & TECHNOLOGY,42(21),8095-8100.
MLA	Sun, Min,et al."An MEC-MR-Coupled System for Biohydrogen Production from Acetate".ENVIRONMENTAL SCIENCE & TECHNOLOGY 42.21(2008):8095-8100.