Enhancement of municipal sludge dewaterability by electrochemical pretreatment

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

	Enhancement of municipal sludge dewaterability by electrochemical pretreatment
	Xiao, Ke ; Deng, Jianping ; Zeng, Li ; Guo, Tao ; Gong, Yan ; Yang, Bo ; Zhao, Xu ; Duan, Huabo
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019
卷号	75 页码:98-104
关键词	Municipal sludge Dewaterability Electrolysis Electrolyte Oxidative radical
ISSN号	1001-0742
英文摘要	Electrolysis is a promising technology to improve sludge dewaterability efficiently with negligible environmental impact. To intensify the electrolytic efficiency, the effect of electrolytes (NaCl, Na2SO4, NaNO3, and NaClO4) on electrolysis pretreatment of municipal sludge and its mechanisms was investigated using Ti/PbO2 electrodes. The electrolytes, which enhanced the production of oxidative radicals, showed a significant synergetic effect in reducing the capillary suction time (CST) of sludge. NaCl was distinguished from the other electrolytes since it formed a large amount of active chlorine species, which oxidized the sludge cells to improve the sludge dewaterability. The surface morphologies as well as the soluble proteins and polysaccharides were analyzed to unravel the underlying mechanisms of sludge dewaterability. Additionally, an economic assessment showed that NaCl addition in the electrolysis pretreatment can be a suitable technique for enhancing municipal sludge dewaterability. (c) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43085]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Shenzhen Univ, Smart City Res Inst, Coll Civil Engn, Shenzhen 518060, Peoples R China 2.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China 3.Shenzhen Univ, Shenzhen Key Lab Environm Chem & Ecol Remediat, Shenzhen 518060, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Ke,Deng, Jianping,Zeng, Li,et al. Enhancement of municipal sludge dewaterability by electrochemical pretreatment[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,75:98-104.
APA	Xiao, Ke.,Deng, Jianping.,Zeng, Li.,Guo, Tao.,Gong, Yan.,...&Duan, Huabo.(2019).Enhancement of municipal sludge dewaterability by electrochemical pretreatment.JOURNAL OF ENVIRONMENTAL SCIENCES,75,98-104.
MLA	Xiao, Ke,et al."Enhancement of municipal sludge dewaterability by electrochemical pretreatment".JOURNAL OF ENVIRONMENTAL SCIENCES 75(2019):98-104.