Bio-augmentative volatile fatty acid production from waste activated sludge hydrolyzed at pH 12

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50033-50039 ◽  
Author(s):  
Xue Yang ◽  
Lei Wen ◽  
Xiang Liu ◽  
Si Chen ◽  
Yayi Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Activated Sludge ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Volatile Fatty Acids ◽  
Waste Activated Sludge ◽  
Soluble Complex ◽  
Fatty Acid Production ◽  
Hydrolysis Of

Although many pretreatment methods are employed to enhance the hydrolysis of waste activated sludge (WAS), the bioconversion of soluble complex substrates needs improvement to produce higher volatile fatty acids (VFAs).

Studies on the production of volatile fatty acids from grass by rumen liquor in an artificial rumen: III. A note on the volatile fatty acid production from crude fibre and grass cellulose

1957 ◽  
Vol 49 (2) ◽  
pp. 180-183 ◽  
Author(s):  
A. John ◽  
G. Barnett ◽  
R. L. Reid
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Volatile Fatty Acids ◽  
Relative Yield ◽  
Water Soluble ◽  
Cellulose Powder ◽  
Crude Fibre ◽  
Fatty Acid Production

1. The findings presented in two previous papers on the yields of volatile fatty acids, obtained by the action of rumen liquor in the artificial rumen, from fresh grass, dried grass and the water-soluble and water-insoluble separates of the latter, have been amplified by a consideration of the acids similarly obtained from specimens of chemically prepared crude fibre and cellulose, from four of the dried grass specimens.2. The proportions of different volatile fatty acids from grass crude fibre and grass cellulose resemble those obtained from cellulose powder, propionic acid being produced in greatest relative yield.3. A general review of these latter findings, in relation to those already presented, has been given.

Continuous volatile fatty acid production from waste activated sludge hydrolyzed at pH 12

2014 ◽  
Vol 168 ◽  
pp. 173-179 ◽  
Author(s):  
Xue Yang ◽  
Chunli Wan ◽  
Duu-Jong Lee ◽  
Maoan Du ◽  
Xiangliang Pan ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Activated Sludge ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Waste Activated Sludge ◽  
Fatty Acid Production

Evaluating properties of protein in waste activated sludge for volatile fatty acid production: effect of pH

2015 ◽  
Vol 73 (9) ◽  
pp. 5047-5056 ◽  
Author(s):  
Xiaoling Liu ◽  
Xuejing Hu ◽  
Jian Wang ◽  
Yonghui Song ◽  
Mengmeng Wang ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Activated Sludge ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Waste Activated Sludge ◽  
Fatty Acid Production ◽  
Effect Of Ph ◽  
Production Effect

Unveiling the different faces of chlortetracycline in fermentative volatile fatty acid production from waste activated sludge

2021 ◽  
Vol 329 ◽  
pp. 124875
Author(s):  
Mengge Tang ◽  
Yanxin Wu ◽  
Xingning Zeng ◽  
Xiao Yang ◽  
Dongbo Wang ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Activated Sludge ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Waste Activated Sludge ◽  
Fatty Acid Production

scholarly journals Substrate Type And Pretreatment Type Effects On VFA Production

2021 ◽  
Author(s):  
Gamsathvani Sivanantham
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Volatile Fatty Acids ◽  
Carbohydrate Content ◽  
Substrate Type ◽  
Fatty Acid Production

In the following report, the effects of substrate type and pretreatment type on the production of volatile fatty acids during anaerobic digestion was analyzed. First, the effects on volatile fatty acid production due to substrate type were investigated. It was determined that wastes that consisted of higher concentrations of carbohydrates would generate higher concentrations of volatile fatty acids during anerobic digestion. In the investigation it was evident that food waste had higher volatile fatty acid yields compared to sludge due to the carbohydrate content. Furthermore, the effects on volatile fatty acid production due to pretreatment type were also investigated. Thermal, chemical, physical and combined pretreatments were analysed. The various types of the different pretreatments and their effects on volatile fatty acid production during anaerobic digestion were discussed in depth.

scholarly journals Substrate Type And Pretreatment Type Effects On VFA Production

2021 ◽  
Author(s):  
Gamsathvani Sivanantham
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Volatile Fatty Acids ◽  
Carbohydrate Content ◽  
Substrate Type ◽  
Fatty Acid Production

In the following report, the effects of substrate type and pretreatment type on the production of volatile fatty acids during anaerobic digestion was analyzed. First, the effects on volatile fatty acid production due to substrate type were investigated. It was determined that wastes that consisted of higher concentrations of carbohydrates would generate higher concentrations of volatile fatty acids during anerobic digestion. In the investigation it was evident that food waste had higher volatile fatty acid yields compared to sludge due to the carbohydrate content. Furthermore, the effects on volatile fatty acid production due to pretreatment type were also investigated. Thermal, chemical, physical and combined pretreatments were analysed. The various types of the different pretreatments and their effects on volatile fatty acid production during anaerobic digestion were discussed in depth.

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