Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering

doi:10.1007/s10163-020-01083-6

	Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering
	Wu, Jiahuan 1,2,3,4; Lu, Tao 2,3,4; Yang, Guang 5; Meng, Wei 5; Yuan, Haoran 2,3,4; Chen, Yong 2,3,4
刊名	JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
	2020-09-22
页码	10
关键词	Biochar Characteristics Coagulant Pyrolysis Sewage sludge
ISSN号	1438-4957
DOI	10.1007/s10163-020-01083-6
通讯作者	Yuan, Haoran(yuanhr@ms.giec.ac.cn)
英文摘要	The properties of sewage sludge-derived biochar (BC) pyrolyzed at 300-900 degrees C were characterized, and which exhibited the basic properties of coagulant. When 1 g BC500 was added to 100 mL waste-activated sludge (WAS), the maximum mean settlement rate reached 8.20 mL min(-1)within 10 min, and the volume of the settlement with settling time decreased to 13 mL. The capillary suction time of BC500 (12 s) was superior to those of municipal solid waste incineration (MSWI) fly ash (13.40 s), coal fly ash (14.20 s), and activated carbon (12.20 s). In addition, added BC may reduce the moisture content of sludge cake, especially for BC500. It can be that soluble cations and organic functional groups neutralize the negative charge of WAS which is helpful to shorten settling time. Meanwhile, the pore structure is beneficial for reducing moisture content of sludge cake. As results shown, BC was feasible to improve sewage sludge dewatering used as a coagulant.
资助项目	National Key R&D Program of China[2018YFC1901200] ; National Natural Science Foundation of China[51608507] ; National Natural Science Foundation of China[51676194]
WOS关键词	PYROLYSIS TEMPERATURE ; HEATING RATE ; BIOCHAR ; STARCH ; PERFORMANCE ; ADSORBENTS ; KINETICS ; BIOMASS ; WATER ; TIME
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000571711100001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32077]
专题	中国科学院广州能源研究所
通讯作者	Yuan, Haoran
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Shenzhen Gas Corp Ltd, Shenzhen 518049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jiahuan,Lu, Tao,Yang, Guang,et al. Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering[J]. JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT,2020:10.
APA	Wu, Jiahuan,Lu, Tao,Yang, Guang,Meng, Wei,Yuan, Haoran,&Chen, Yong.(2020).Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering.JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT,10.
MLA	Wu, Jiahuan,et al."Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering".JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT (2020):10.