PERFORMANCE OF THERMAL PRETREATMENT FOR PATHOGEN INACTIVATION OF FECAL SLUDGE

doi:10.13031/trans.59.11526

	PERFORMANCE OF THERMAL PRETREATMENT FOR PATHOGEN INACTIVATION OF FECAL SLUDGE
	Yin, Fubin 1; Li, Zifu 2; Wang, Dongling 2; Dong, Hongmin 1
刊名	TRANSACTIONS OF THE ASABE
	2016
卷号	59 期号:3 页码:1005-1011
关键词	Fecal sludge Kinetic Pathogen inactivation Sludge solubilization Thermal pretreatment
ISSN号	2151-0032
DOI	10.13031/trans.59.11526
通讯作者	Yin, Fubin
英文摘要	This study aimed to evaluate the efficiency of thermal pretreatment (70 degrees C) to inactivate pathogens using fecal coliforms, Salmonella spp., fecal streptococci, and helminth eggs as indicators. The effects of total solid (TS) content and holding time on pathogen inactivation and sludge solubilization were investigated. The resulting survival curves were described using the first-order model or the Weibull model; the fit effectiveness of these models was investigated. Results showed that holding time exerted a more positive effect on pretreatment than TS. Thermal pretreatment of 1% to 12% TS sludge completely inactivated the pathogens within 100 min. The regression coefficients indicated that the Weibull model had a better fit than the first-order model. Furthermore, thermal pretreatment enhanced sludge solubilization. At TS concentrations of 1%, 2%, 4%, 6%, 8%, 10%, and 12%, the SCOD values increased from 3570, 6470, 11620, 12360, 15150, 29550, and 39250 mg L-1 to 4580, 8650, 15060, 16400, 22290, 43060, and 56700 mg L-1, respectively, and the amounts of soluble proteins increased from 0.176, 0.327, 0.636, 1.024, 1.233, 1.340, and 1.563 g L-1 to 0.757, 1.514, 3.623, 6.490, 8.125, 8.787, and 9.083 g L-1, respectively.
学科主题	Agricultural Engineering
语种	英语
出版者	AMER SOC AGRICULTURAL & BIOLOGICAL ENGINEERS
WOS记录号	WOS:000385866800026
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105455]
专题	农业环境与可持续发展研究所_职能部门
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Energy Conservat & Waste Treatment Agr St, Minist Agr, Beijing, Peoples R China 2.Univ Sci & Technol Beijing, Sch Civil & Environm Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Yin, Fubin,Li, Zifu,Wang, Dongling,et al. PERFORMANCE OF THERMAL PRETREATMENT FOR PATHOGEN INACTIVATION OF FECAL SLUDGE[J]. TRANSACTIONS OF THE ASABE,2016,59(3):1005-1011.
APA	Yin, Fubin,Li, Zifu,Wang, Dongling,&Dong, Hongmin.(2016).PERFORMANCE OF THERMAL PRETREATMENT FOR PATHOGEN INACTIVATION OF FECAL SLUDGE.TRANSACTIONS OF THE ASABE,59(3),1005-1011.
MLA	Yin, Fubin,et al."PERFORMANCE OF THERMAL PRETREATMENT FOR PATHOGEN INACTIVATION OF FECAL SLUDGE".TRANSACTIONS OF THE ASABE 59.3(2016):1005-1011.