Influence of wastewater sludge properties on the performance of electro-osmosis dewatering

doi:10.1080/09593330.2018.1455744

CSpace > 系统科学研究所

	Influence of wastewater sludge properties on the performance of electro-osmosis dewatering
	Bai, Hao 1; Zhu, Rong2 ; An, Hao 1; Zhou, Guoya 3; Huang, Hui 1; Ren, Hongqiang 1; Zhang, Yan 1
	2019-09-19
发表期刊	ENVIRONMENTAL TECHNOLOGY
ISSN	0959-3330
卷号	40 期号:21 页码:2853-2863
摘要	Although the properties of municipal wastewater sludge play key roles in the electro-osmosis dewatering process, it is still controversial which properties have the greatest effect on the dewatering performance. In this study, multiple regression models with the Group Lasso method were used to investigate the relationship between the final moisture content and the sludge properties, including pH, electrical conductivity (EC), volatile solids content, zeta potential (zeta), initial moisture content, extracellular polymeric substances (EPS), proteins of EPS (EPSPr), polysaccharides of EPS (EPSPo) and the ratio of EPSPr and EPSPo (EPSR). Under the optimal conditions (pressure = 100 kPa, voltage = 50 V and cake thickness = 15 mm), EPS, EC and zeta were significantly related to sludge dewaterability and EPS was the most important factor. Furthermore, the coefficient estimate of EPSPo was greater than that of EPSPr and the coefficient of EPSR was negative, indicating that EPSPo plays more important roles in electro-osmosis dewatering than EPSPr. Thus, reducing the EPS content of sludge, especially the EPSPo content, is necessary to improve the performance of electro-osmosis dewatering. [GRAPHICS] .
关键词	Wastewater sludge electro-osmosis dewatering sludge properties extracellular polymeric substances Group Lasso method
DOI	10.1080/09593330.2018.1455744
语种	英语
资助项目	National Key Technology Support Program[2014BAC08B07] ; National Natural Science Foundation of China[21407076] ; National Natural Science Foundation of China[21777068] ; National Natural Science Foundation of China[51508263] ; Jiangsu Science and Technology Support Program[BE2015622]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000477902200012
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/35209
专题	系统科学研究所
通讯作者	Zhang, Yan
作者单位	1.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China 3.Peng Yao Environm Protect Inst, Yixing, Peoples R China
推荐引用方式 GB/T 7714	Bai, Hao,Zhu, Rong,An, Hao,et al. Influence of wastewater sludge properties on the performance of electro-osmosis dewatering[J]. ENVIRONMENTAL TECHNOLOGY,2019,40(21):2853-2863.
APA	Bai, Hao.,Zhu, Rong.,An, Hao.,Zhou, Guoya.,Huang, Hui.,...&Zhang, Yan.(2019).Influence of wastewater sludge properties on the performance of electro-osmosis dewatering.ENVIRONMENTAL TECHNOLOGY,40(21),2853-2863.
MLA	Bai, Hao,et al."Influence of wastewater sludge properties on the performance of electro-osmosis dewatering".ENVIRONMENTAL TECHNOLOGY 40.21(2019):2853-2863.