IHB OpenIR  > 水环境工程研究中心  > 期刊论文
Carbon Source Recovery from Waste Activated Sludge by Low-Temperature Thermal Hydrolysis Process
Wu, Yuqi1,2; Jiang, Yinghe1; Song, Kang2
Corresponding AuthorJiang, Yinghe(jyhe123@163.com)
2020
Source PublicationJOURNAL OF ENVIRONMENTAL ENGINEERING
ISSN0733-9372
Volume146Issue:1Pages:6
AbstractTo 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.
KeywordThermal hydrolysis process Carbon source Solubilization Dewaterability Waste activated sludge
DOI10.1061/(ASCE)EE.1943-7870.0001631
Funding OrganizationNational 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
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41877344]
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000497673400002
WOS KeywordFREE NITROUS-ACID ; PRETREATMENT METHODS ; ANAEROBIC-DIGESTION ; HYDROGEN-PRODUCTION ; METHANE PRODUCTION ; SEWAGE-TREATMENT ; DISINTEGRATION ; DENITRIFICATION ; DEWATERABILITY ; TECHNOLOGY
PublisherASCE-AMER SOC CIVIL ENGINEERS
Funding OrganizationNational 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
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/34857
Collection水环境工程研究中心_期刊论文
Corresponding AuthorJiang, Yinghe
Affiliation1.Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
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.
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