The effect of PBS on methane production in combined MEC-AD system fed with alkaline pretreated sewage sludge

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	The effect of PBS on methane production in combined MEC-AD system fed with alkaline pretreated sewage sludge
	Xu, Xi-Jun; Wang, Wan-Qiong; Chen, Chuan; Xie, Peng; Liu, Wen-Zong; Zhou, Xu; Wang, Xue-Ting; Yuan, Ye; Wang, Ai-Jie; Lee, Duu-Jong
刊名	RENEWABLE ENERGY
	2020-06
卷号	152 页码:229-236
关键词	Anaerobic digestion Microbial electrolysis cell Alkaline pretreated sludge Phosphate buffer solution Methane production
ISSN号	0960-1481
英文摘要	Batch experiments were conducted to study bioelectrochemical enhancement of the anaerobic digestion (AD) of alkaline-pretreated sewage sludge in microbial electrolysis cell (MEC) in the presence or absence of phosphate buffer solution (PBS). Experimental results showed that the maximum methane production rate was increased from 0.18 mL-CH/(mLreactord) (control) to 0.2 mL-CH/(mLreactor.d) in the presence of PBS and cumulative methane production was 1.4-fold higher than that of control. The initial concentrations of SCOD, protein, polysaccharide and VFAs in the presence of PBS were slightly higher than those of control, suggesting that PBS might facilitate the release of organics into mixed liquor. The microbial community analysis results showed that the microbial community with PBS had higher diversity and Bacteroidetes and Firmicutes were the two most abundant phyla in the communities. Moreover, the PBS addition could enhance the growth of aceticlastic methanogens (Methanosaeta) and inhibit a portion of hydrogenotrophic methanogens (Methanobacterium), possibly due to the different cell wall composition. (C) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45218]
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	Xu, Xi-Jun,Wang, Wan-Qiong,Chen, Chuan,et al. The effect of PBS on methane production in combined MEC-AD system fed with alkaline pretreated sewage sludge[J]. RENEWABLE ENERGY,2020,152:229-236.
APA	Xu, Xi-Jun.,Wang, Wan-Qiong.,Chen, Chuan.,Xie, Peng.,Liu, Wen-Zong.,...&Ren, Nan-Qi.(2020).The effect of PBS on methane production in combined MEC-AD system fed with alkaline pretreated sewage sludge.RENEWABLE ENERGY,152,229-236.
MLA	Xu, Xi-Jun,et al."The effect of PBS on methane production in combined MEC-AD system fed with alkaline pretreated sewage sludge".RENEWABLE ENERGY 152(2020):229-236.