Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source

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	Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source
	Zhuang Xiuzheng; Huang Yanqin; Liu Huacai; Yuan Hongyou; Yin Xiuli; Wu Chuangzhi
	2018
Source Publication	Journal of Environmental Sciences
ISSN	1001-0742
Volume	69 Pages:261
Abstract	Sewage sludge (SS) and deinking sludge (DS) were used to comparatively study the hydrothermal dewatering of sludge with different components. For a better overview, an insight into the relationship between physicochemical properties and dewaterability of hydrothermal sludge was provided. Results found that not all kinds of sludge were suitably conditioned by hydrothermal treatment (HT) in term of the elevation of dewaterability. Higher hydrothermal temperature tended to enhance the dewaterability of SS rather than DS, which was supported by the variation of their physicochemical properties (including water distribution, bonding energy, extracellular polymeric substance (EPS), particles size, acid functional groups and zeta potential in this study). In addition, the changes in surface morphology suggested that the reverse effect of HT on sludge dewaterability was mainly due to their dewatering behavior. For SS, the destruction of EPS structure leaded to the release of bound water, thereby strengthening sludge dewatering. Conversely, "Bridging effect" generated by lignocellulose in DS was beneficial for sludge dewatering; however, the increasing hydrothermal temperature degraded part of lignocellulose and weakened "bridging effect", finally resulting in worse dewaterability of DS. (c) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Language	英语
Funding Project	[National Natural Science Foundation of China] ; [Special Program for Key Basic Research of the Natural Science Foundation of Guangdong Province]
WOS ID	WOS:000439688100028
Citation statistics	Cited Times:6[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/20743
Collection	中国科学院广州能源研究所
Affiliation	中国科学院广州能源研究所
First Author Affilication	GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation GB/T 7714	Zhuang Xiuzheng,Huang Yanqin,Liu Huacai,et al. Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source[J]. Journal of Environmental Sciences,2018,69:261.
APA	Zhuang Xiuzheng,Huang Yanqin,Liu Huacai,Yuan Hongyou,Yin Xiuli,&Wu Chuangzhi.(2018).Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source.Journal of Environmental Sciences,69,261.
MLA	Zhuang Xiuzheng,et al."Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source".Journal of Environmental Sciences 69(2018):261.

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