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Effect of temperature on the persistence of fecal bacteria in ambient anaerobic digestion systems treating swine manure
Tian, Tiantian; Qiao, Wei; Han, Ziming; Wen, Xianghua; Yang, Min; Zhang, Yu
2021-12-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN1001-0742
Volume108Pages:145-151
AbstractThis study investigated a combined low-thermal and CaO2 pretreatment to enhance the volatile fatty acid (VFA) production from waste activated sludge (WAS). The fermentative product was added to a sequencing batch reactor (SBR) as an external carbon source to enhance nitrogen removal. The results showed that the combined pretreatment improved WAS solubilization, releasing more biodegradable substrates, such as proteins and polysaccharides, from TB-EPS to LB-EPS and S-EPS. The maximum VFA production of 3529 +/- 188 mg COD/L was obtained in the combined pretreatment (0.2 g CaO2 /g VS + 70 degrees C for 60 min), which was 2.1 and 1.4-fold of that obtained from the sole low-thermal pretreatment and the control test, respectively. Consequently, when the fermentative liquid was added as an external denitrification carbon source, the effluent total nitrogen decreased to Class A of the discharge standard for pollutants in rural wastewater treatment plants in most areas of China. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Department环境水质学国家重点实验室
KeywordWaste activated sludge Anaerobic digestion Calcium peroxide Low-thermal pretreatment Volatile fatty acids
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46847
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
2.China Agr Univ, Coll Engn, Beijing 100083, Peoples R China
3.Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Tian, Tiantian,Qiao, Wei,Han, Ziming,et al. Effect of temperature on the persistence of fecal bacteria in ambient anaerobic digestion systems treating swine manure[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,108:145-151.
APA Tian, Tiantian,Qiao, Wei,Han, Ziming,Wen, Xianghua,Yang, Min,&Zhang, Yu.(2021).Effect of temperature on the persistence of fecal bacteria in ambient anaerobic digestion systems treating swine manure.SCIENCE OF THE TOTAL ENVIRONMENT,108,145-151.
MLA Tian, Tiantian,et al."Effect of temperature on the persistence of fecal bacteria in ambient anaerobic digestion systems treating swine manure".SCIENCE OF THE TOTAL ENVIRONMENT 108(2021):145-151.
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