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Carbon Source Recovery from Waste Activated Sludge by Low-Temperature Thermal Hydrolysis Process

文献类型：期刊论文

作者Wu, Yuqi1,2; Jiang, Yinghe2; Song, Kang1
刊名JOURNAL OF ENVIRONMENTAL ENGINEERING
出版日期2020
卷号146期号:1页码:6
关键词Thermal hydrolysis process Carbon source Solubilization Dewaterability Waste activated sludge
ISSN号0733-9372
DOI10.1061/(ASCE)EE.1943-7870.0001631
通讯作者Jiang, Yinghe(jyhe123@163.com)
英文摘要To recover a preferred carbon source from waste activated sludge (WAS), this study systematically investigated the effects of a low-temperature thermal hydrolysis process (THP) on WAS solubilization and dewaterability at 25 degrees C-120 degrees C for 60 min. Experimental results indicated that organics [soluble chemical oxygen demand (SCOD), proteins, carbohydrates, and lipids] and nutrients (N and P) were efficiently released into the sludge supernatant after THP. Deoxyribonucleic acid (DNA) tests identified 60 degrees C as the threshold of sludge cell disintegration, which increased DNA from nearly 0-166.64 mg/L. Sludge dewaterability deteriorated after THP, as evidenced by longer filtration times and higher water contents of sludge cake, particularly at 120 degrees C, which was due to the release of abundant soluble extracellular polymeric substances. The optimal heating temperature for carbon source recovery was 80 degrees C, which achieved the highest biodegradability (5-day biochemical oxygen demand/SCOD 0.62), satisfied SCOD/total nitrogen (18.6), and had acceptable dewaterability.
WOS关键词FREE NITROUS-ACID ; PRETREATMENT METHODS ; ANAEROBIC-DIGESTION ; HYDROGEN-PRODUCTION ; METHANE PRODUCTION ; SEWAGE-TREATMENT ; DISINTEGRATION ; DENITRIFICATION ; DEWATERABILITY ; TECHNOLOGY
资助项目National Natural Science Foundation of China[41877344]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000497673400002
出版者ASCE-AMER SOC CIVIL ENGINEERS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.ihb.ac.cn/handle/342005/34856]  
专题水生生物研究所_水环境工程研究中心_期刊论文
通讯作者Jiang, Yinghe
作者单位1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Yuqi,Jiang, Yinghe,Song, Kang. Carbon Source Recovery from Waste Activated Sludge by Low-Temperature Thermal Hydrolysis Process[J]. JOURNAL OF ENVIRONMENTAL ENGINEERING,2020,146(1):6.
APA Wu, Yuqi,Jiang, Yinghe,&Song, Kang.(2020).Carbon Source Recovery from Waste Activated Sludge by Low-Temperature Thermal Hydrolysis Process.JOURNAL OF ENVIRONMENTAL ENGINEERING,146(1),6.
MLA Wu, Yuqi,et al."Carbon Source Recovery from Waste Activated Sludge by Low-Temperature Thermal Hydrolysis Process".JOURNAL OF ENVIRONMENTAL ENGINEERING 146.1(2020):6.

入库方式： OAI收割

来源：水生生物研究所

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