Evaluation of the microbial cell structure damages in alkaline pretreatment of waste activated sludge

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	Evaluation of the microbial cell structure damages in alkaline pretreatment of waste activated sludge
	Xiao, Benyi; Guo, Xuesong; Liu, Junxin; Liu, Cao
刊名	BIORESOURCE TECHNOLOGY
	2015-11
卷号	196 页码:109-115
关键词	Alkaline Pretreatment Damage Microbial Cell Structure Ph Waste Activated Sludge
英文摘要	This study investigated the damages of microbial cell structures, as well as the relationships between these damages and the release of cellular organic matter in the pretreatment of waste activated sludge (WAS) by using alkaline pretreatment as model. In the alkaline pretreatment of WAS, the most damage of bound extracellular polymeric substances (EPS), cell walls, cell membranes, and cell nuclei occurred at pH 11.5-12.0 (46.2%), pH 11.0-11.5 (27.3%), pH 9.0-10.0 (34.2%), and pH 11.5-12.0 (44.4%), respectively. The damage percentages of these cell structures in the pH stabilization stage were low because most of the damages occurred when the pH increased. The structural integrities of sludge microorganisms were all damaged in the pH increase stage. The damages of EPS, cell walls, and cell membranes were significantly correlated with the release of cellular organic matter, and these damages were necessary to release the cellular matter in WAS. (C) 2015 Published by Elsevier Ltd.
WOS研究方向	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:000361040500015
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32877]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Xiao, Benyi,Guo, Xuesong,Liu, Junxin,et al. Evaluation of the microbial cell structure damages in alkaline pretreatment of waste activated sludge[J]. BIORESOURCE TECHNOLOGY,2015,196:109-115.
APA	Xiao, Benyi,Guo, Xuesong,Liu, Junxin,&Liu, Cao.(2015).Evaluation of the microbial cell structure damages in alkaline pretreatment of waste activated sludge.BIORESOURCE TECHNOLOGY,196,109-115.
MLA	Xiao, Benyi,et al."Evaluation of the microbial cell structure damages in alkaline pretreatment of waste activated sludge".BIORESOURCE TECHNOLOGY 196(2015):109-115.