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Bioresour Technol

Title:		Improving anaerobic fermentation of waste activated sludge using iron activated persulfate treatment
Author(s):		Luo J; Zhang Q; Wu L; Feng Q; Fang F; Xue Z; Li C; Cao J;
Address:		"Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China. Jiangsu Provincial Academy of Environmental Science, Nanjing 210098, China. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China. Electronic address: caojiashun@163.com"
Journal Title:		Bioresour Technol
Year:		2018
Volume:		20180623
Issue:
Page Number:		68 - 76
DOI:		10.1016/j.biortech.2018.06.080
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"This study reported a novel and efficient approach to improve the anaerobic fermentation performance of waste activated sludge (WAS) by the indigenous iron activated persulfate (PS/Fe) treatment. Firstly, the production of short-chain fatty acids (SCFAs), especially acetic acid, was remarkably enhanced within shorter fermentation time. Mechanism investigations demonstrated that the PS/Fe treatment could simultaneously accelerate and enhance the hydrolysis and acidification process while inhibit the methanogenesis during WAS fermentation. The activities of key enzymes and the abundances of anaerobic microorganisms responsible for SCFAs production were stimulated in the presence of PS/Fe which would promote the biological processes. Secondly, the PS/Fe treatment improved the quality of fermentation residue by reducing the toxic organic compounds in the residue and enhancing the dewaterability of fermented sludge, which was beneficial to the final disposal of WAS with added economical and environmental values"
Keywords:		"*Fatty Acids, Volatile *Fermentation Hydrogen-Ion Concentration Hydrolysis Iron *Sewage Waste Disposal, Fluid Anaerobic fermentation Iron activated persulfate treatment Short-chain fatty acids (SCFAs) Waste activated sludge (WAS);"
Notes:		"MedlineLuo, Jingyang Zhang, Qin Wu, Lijuan Feng, Qian Fang, Fang Xue, Zhaoxia Li, Chao Cao, Jiashun eng England 2018/08/04 Bioresour Technol. 2018 Nov; 268:68-76. doi: 10.1016/j.biortech.2018.06.080. Epub 2018 Jun 23"