Conditioning of resuspension excess sludge with chemical oxidation technology: The respective performance of filtration and expression stage in compression dewatering

doi:10.1016/j.seppur.2019.116317

	Conditioning of resuspension excess sludge with chemical oxidation technology: The respective performance of filtration and expression stage in compression dewatering
	Tan, Xun 3,4; Chen, Yijun 1,4; Xue, Qiang 2,4; Wan, Yong 2,4; Liu, Lei 2,4
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2020-04-15
卷号	237 页码:15
关键词	Sludge Fenton Resuspension EPS Filtration Consolidation
ISSN号	1383-5866
DOI	10.1016/j.seppur.2019.116317
英文摘要	Excess sludge has a high yield, rich in organic matter and high water content. The combinational method from chemical oxidation treatment and secondary mechanical dehydration is a powerful approach to further reduce the moisture content of the sludge. This work mainly studies the physicochemical properties of resuspension excess sludge (RES) with the treatment of chemical oxidation, the samples are processed by the compression filter device in a laboratory scale, and the three-stage Terzaghi-Voigt model was used to characterize the expression stage dewatering of samples. The experimental results indicate that: i) The improvement of the dewaterability of resuspension excess sludge is due to moderate chemical oxidation, which Is related to the mode of migration and mineralization of organic substances in the stratified structure of the extracellular polymer substance (EPS). ii) When the protein in supernatant + slime is more mineralized than moved in, the dewaterability of the sample is improved. iii) The change of moisture removal for ternary consolidation was very consistent with the change of SRF in the filtration stage (p = 0.95, p < 0.01). Based on the results, we discuss how chemical oxidation affects the dewatering performance of filtration and expression stages in the solid-liquid separation. This means that the surface characteristics of the sludge particle and the liquid properties play critical roles in solid-liquid separation mechanism.
资助项目	Jiangsu Institute of Zoneco Soil Co. Ltd ; National Natural Science Foundation of China[51625903] ; National Natural Science Foundation of China[51609241] ; National Natural Science Foundation of China[51827814] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[51861165104] ; Yixing Taodu Talents Project[CXTD201601C] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017376]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000509625700022
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23498]
专题	中科院武汉岩土力学所
通讯作者	Chen, Yijun
作者单位	1.Jiangsu Inst Ecol Soil Co Ltd, Yixing 214200, Peoples R China 2.Hubei Key Lab Contaminated Clay Sci & Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100000, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Tan, Xun,Chen, Yijun,Xue, Qiang,et al. Conditioning of resuspension excess sludge with chemical oxidation technology: The respective performance of filtration and expression stage in compression dewatering[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2020,237:15.
APA	Tan, Xun,Chen, Yijun,Xue, Qiang,Wan, Yong,&Liu, Lei.(2020).Conditioning of resuspension excess sludge with chemical oxidation technology: The respective performance of filtration and expression stage in compression dewatering.SEPARATION AND PURIFICATION TECHNOLOGY,237,15.
MLA	Tan, Xun,et al."Conditioning of resuspension excess sludge with chemical oxidation technology: The respective performance of filtration and expression stage in compression dewatering".SEPARATION AND PURIFICATION TECHNOLOGY 237(2020):15.