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Effect of air temperature and aeration strategy on water removal during sewage sludge composting
Zhou, HaiBin1,2,3; Shen, Yujun1,3; Meng, Haibo1,3; Gao, Ding2; Chen, Tongbin2
2018
Source PublicationDRYING TECHNOLOGY
ISSN0737-3937
Volume36Issue:12Pages:1474-1480
Corresponding AuthorChen, Tongbin(chentb@igsnrr.ac.cn)
AbstractWater removal is one of the main objectives of sewage sludge composting to reduce the volume and mass of sewage sludge. In this study, the effect of aeration strategy and ambient temperature (summer and winter) on composting pile temperature, moisture content, and volatile solid (VS) change were studied during sewage sludge composting processes in a well-operated sludge corn posting plant. The results showed that the temperatures of the composting pile could remain above 55 degrees C for more than 3 days under all conditions, which was sufficient to meet the requirement of harmless treatment. Moisture content of composting material decreased from 65%-69% to 39.2%-52.6% within 20 days, and VS decreased to about 77%. In the end of the composting process, cumulative water removal was 0.45-0.47 kg/kg in summer, which was significantly higher than that in winter (0.35-0.36 kg/kg). When the average aeration rate was fixed, aeration strategy with a smaller aeration rate and higher on/off time ratio showed more water removal than that with a higher aeration rate and lower on/off time ratio in summer, but showed reverse results in winter.
KeywordAeration strategy ambient temperature composting sewage sludge water removal
DOI10.1080/07373937.2017.1409757
WOS KeywordMUNICIPAL SOLID-WASTE ; BIODRYING PROCESS ; MOISTURE-CONTENT ; BULKING AGENT ; PIG-MANURE ; MODEL
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFD0800603] ; Special Fund for Agro-scientific Research in the Public Interest[201203045]
Funding OrganizationNational Key Research and Development Program of China ; Special Fund for Agro-scientific Research in the Public Interest
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical ; Engineering, Mechanical
WOS IDWOS:000441236800007
PublisherTAYLOR & FRANCIS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54559
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen, Tongbin
Affiliation1.Chinese Acad Agr Engn, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China
3.Minist Agr, Key Lab Technol & Model Cycl Utilizat Agr Resourc, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhou, HaiBin,Shen, Yujun,Meng, Haibo,et al. Effect of air temperature and aeration strategy on water removal during sewage sludge composting[J]. DRYING TECHNOLOGY,2018,36(12):1474-1480.
APA Zhou, HaiBin,Shen, Yujun,Meng, Haibo,Gao, Ding,&Chen, Tongbin.(2018).Effect of air temperature and aeration strategy on water removal during sewage sludge composting.DRYING TECHNOLOGY,36(12),1474-1480.
MLA Zhou, HaiBin,et al."Effect of air temperature and aeration strategy on water removal during sewage sludge composting".DRYING TECHNOLOGY 36.12(2018):1474-1480.
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