Synergistic pretreatment of CaO and freezing/thawing to enhance volatile fatty acids recycling and dewaterability of waste activated sludge via anaerobic fermentation

Chemosphere ◽  
2021 ◽  
pp. 130939
Author(s):  
Yuecheng She ◽  
Wenxuan Wei ◽  
Xiaodong Xin ◽  
Junming Hong ◽  
Xiaohuan Ai
Keyword(s):  
Fatty Acids ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge

Effect of nonylphenol on volatile fatty acids accumulation during anaerobic fermentation of waste activated sludge

2016 ◽  
Vol 105 ◽  
pp. 209-217 ◽  
Author(s):  
Xu Duan ◽  
Xiao Wang ◽  
Jing Xie ◽  
Leiyu Feng ◽  
Yuanyuan Yan ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge

Volatile fatty acids production from waste activated sludge during anaerobic fermentation: The effect of superfine sand

2021 ◽  
Vol 319 ◽  
pp. 124249
Author(s):  
Xiupeng Jiang ◽  
Zhiyi Qin ◽  
Leiyu Feng ◽  
Yinguang Chen ◽  
Jianguang Chen ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge

Fermentation Properties of Waste Activated Sludge in an Enriched NO3--N System

2011 ◽  
Vol 281 ◽  
pp. 96-100
Author(s):  
Wei Tang ◽  
Yong Zhen Peng ◽  
Liang Chang Zhang ◽  
Shu Ying Wang
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge ◽  
Sludge Reduction ◽  
Late Period ◽  
Dominant Component ◽  
Anoxic Environment

In this research, NO3--N was added into the typical sludge anaerobic fermentation (TAF) of waste activated sludge (WAS), creating an anoxic environment for the growth of denitrifiers, as well as the inhibition of methanogens, therefore to insure the operation of simultaneous anoxic fermentation and denitrification (SAFD) system. Compared to TAF, SAFD can utilize the endogenous carbon source of WAS to denitrification, which achieved higher sludge reduction. Results showed that the SS, VSS in SAFD was reduced by 63.8% and 74.7%, respectively, which is obviously higher than that of 36.7% and 47.6% in TAF. Volatile fatty acids (VFAs) in TAF reached the top with propionic acid as dominant component in the mid-period of the fermentation; whereas that in SAFD was preferred by acetic acid in the late period. Evidenced by the variation of TN, NH4+-N and NO3--N, SAFD own a significant ability in denitrification, while the protein conversion appeared to be continuously low in this system.

scholarly journals Effect of diclofenac on the production of volatile fatty acids from anaerobic fermentation of waste activated sludge

2018 ◽  
Vol 254 ◽  
pp. 7-15 ◽  
Author(s):  
Jiawei Hu ◽  
Jianwei Zhao ◽  
Dongbo Wang ◽  
Xiaoming Li ◽  
Dan Zhang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge

Enhanced volatile fatty acids production from waste activated sludge anaerobic fermentation by adding tofu residue

2019 ◽  
Vol 274 ◽  
pp. 430-438 ◽  
Author(s):  
Xiaoding Huang ◽  
Jianwei Zhao ◽  
Qiuxiang Xu ◽  
Xiaoming Li ◽  
Dongbo Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Activated Sludge ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge
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