Enhanced biohydrogen production from waste activated sludge in combined strategy of chemical pretreatment and microbial electrolysis

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Enhanced biohydrogen production from waste activated sludge in combined strategy of chemical pretreatment and microbial electrolysis
	Liu, Wenzong
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2014
卷号	39 期号:23 页码:11913-11919
关键词	Biohydrogen Waste activated sludge Pretreatment Bioelectrolysis VFAs
ISSN号	0360-3199
中文摘要	Cascade conversion methods are required to treat waste sludge (WAS) targeting at abundant biomass embedded in its cells and extracellular polymer. Two limiting factors have to overcome to obtain efficient conversion: (i) low release of soluble organics in raw WAS; (ii) limited conversion rate from organics to energy. Combined strategy of effective chemical pretreatment and microbial electrolysis was tested. Four kinds of chemicals (SDS, NaOH, peracetic-acid and P-cyclodextrin) were chosen to enhance volatile fatty acids (VFAs) production and following effects on hydrogen production and energy recovery by microbial electrolysis was further studied. The highest VFAs concentration was accumulated to 4712.69 mgCOD/L by beta-CD within 3 days, which was increased to 4 times of unpretreated WAS. Other three chemicals respectively achieved similar to 2.5-fold increase by SDS and PAA, and similar to 2-fold increase by NaOH. However, the highest hydrogen yield was 8.5 mgH(2)/gVSS with energy efficiency of 138% +/- 8% by SDS pretreatment. The pretreatment substantially affects VFAs components, reflected on cascade changing of current and hydrogen production rate. The cascade conversion indicated that accumulation of acetate and propionate in SDS pretreatment benefited the most hydrogen production in combined strategy. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
WOS记录号	WOS:000340328800010
公开日期	2015-03-26
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9659]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Liu, Wenzong. Enhanced biohydrogen production from waste activated sludge in combined strategy of chemical pretreatment and microbial electrolysis[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2014,39(23):11913-11919.
APA	Liu, Wenzong.(2014).Enhanced biohydrogen production from waste activated sludge in combined strategy of chemical pretreatment and microbial electrolysis.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,39(23),11913-11919.
MLA	Liu, Wenzong."Enhanced biohydrogen production from waste activated sludge in combined strategy of chemical pretreatment and microbial electrolysis".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39.23(2014):11913-11919.