REVIEW OF PRETREATMENT PROCESS FOR MUNICIPAL SLUDGE FERMENTATION FOR PRODUCING VOLATILE FATTY ACIDS

DONG Wenyi; DU Hong; ZENG Yuanxin; HUANG Xiao; WANG Hongjie; DAI Zhongyi

doi:10.13205/j.hjgc.202307033

Volume 41 Issue 7

Jul. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(7): 241-251

DONG Wenyi, DU Hong, ZENG Yuanxin, HUANG Xiao, WANG Hongjie, DAI Zhongyi. REVIEW OF PRETREATMENT PROCESS FOR MUNICIPAL SLUDGE FERMENTATION FOR PRODUCING VOLATILE FATTY ACIDS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 241-251. doi: 10.13205/j.hjgc.202307033

Citation:

DONG Wenyi, DU Hong, ZENG Yuanxin, HUANG Xiao, WANG Hongjie, DAI Zhongyi. REVIEW OF PRETREATMENT PROCESS FOR MUNICIPAL SLUDGE FERMENTATION FOR PRODUCING VOLATILE FATTY ACIDS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 241-251. doi: 10.13205/j.hjgc.202307033

Citation:

DONG Wenyi, DU Hong, ZENG Yuanxin, HUANG Xiao, WANG Hongjie, DAI Zhongyi. REVIEW OF PRETREATMENT PROCESS FOR MUNICIPAL SLUDGE FERMENTATION FOR PRODUCING VOLATILE FATTY ACIDS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 241-251. doi: 10.13205/j.hjgc.202307033

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REVIEW OF PRETREATMENT PROCESS FOR MUNICIPAL SLUDGE FERMENTATION FOR PRODUCING VOLATILE FATTY ACIDS

doi: 10.13205/j.hjgc.202307033

1. Shenzhen Key Laboratory of Water Resources Utilization and Environmental Pollution Control, School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China;
2. Shenzhen Water (Group) Co., Ltd., Shenzhen 518031, China;
3. Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing 210044, China;
4. China Municipal Engineering Central South Design and Research Institute Co., Ltd., Wuhan 430010, China

Received Date: 2022-09-06

Abstract

Abstract

Producing volatile fatty acids (VFAs) by anaerobic fermentation from municipal sludge to strengthen nitrogen and phosphorus removal of urban sewage, is one of the most effective sludge treatment and disposal methods to realize the purpose of treating waste with waste. However, hydrolysis is the limiting step of VFAs production from sludge. Improving sludge hydrolysis efficiency by pretreatment is an efficient way to increase VFAs yield significantly. Many pretreatment strategies have been reported, and the mechanism and impact of enhancing the VFAs production process are different. Therefore, this review summarized and compared the commonly used pre-treatment processes for promoting sludge fermentation to produce VFAs, elaborated on the principles, characteristics, and application effect of each pre-treatment process, compared and analyzed their economic costs, comprehensively analyzed their existing problems, and looked forward to future development directions, in order to provide literature reference for the design and optimization of sludge fermentation acid production engineering schemes.
- municipal sludge,
- fermentation,
- volatile fatty acid,
- pretreatment,
- progress

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References(88)

References

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