Continuous fermentation of food waste leachate for the production of volatile fatty acids and potential as a denitrification carbon source

2016 ◽  
Vol 207 ◽  
pp. 440-445 ◽  
Author(s):  
Hakchan Kim ◽  
Jaai Kim ◽  
Seung Gu Shin ◽  
Seokhwan Hwang ◽  
Changsoo Lee
Keyword(s):  
Fatty Acids ◽  
Carbon Source ◽  
Food Waste ◽  
Volatile Fatty Acids ◽  
Continuous Fermentation ◽  
Food Waste Leachate ◽  
Waste Leachate

scholarly journals Volatile Fatty Acid Production from Food Waste Leachate Using Enriched Bacterial Culture and Soil Bacteria as Co-Digester

2021 ◽  
Vol 13 (17) ◽  
pp. 9606
Author(s):  
Van Hong Thi Pham ◽  
Jeongyoon Ahn ◽  
Jaisoo Kim ◽  
Sangbeom Lee ◽  
Ingyu Lee ◽  
...  
Keyword(s):  
Food Waste ◽  
Soil Bacteria ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Oxygen Demand ◽  
Solid Content ◽  
Fatty Acid Production ◽  
Total Solid Content ◽  
Food Waste Leachate ◽  
Waste Leachate

The production of volatile fatty acids (VFAs) from waste stream has been recently getting attention as a cost-effective and environmentally friendly approach in mechanical–biological treatment plants. This is the first study to explore the use of a functional bacterium, AM5 isolated from forest soil, which is capable of enhancing the production of VFAs in the presence of soil bacteria as a co-digester in non-strict anaerobic fermentation processes of food waste leachates. Batch laboratory-scale trials were conducted under thermophilic conditions at 55 °C and different pH values ranging from approximately 5 to 11, as well as under uncontrolled pH for 15 days. Total solid content (TS) and volatile solid content (VS) were observed with 58.42% and 65.17% removal, respectively. An effluent with a VFA concentration of up to 33,849 mg/L (2365.57 mg/g VS; 2244.45 mg/g chemical oxygen demand (COD)-VFA VS; 1249 mg/g VSremoved) was obtained at pH 10.5 on the second day of the batch culture. The pH resulted in a significant effect on VFA concentration and composition at various values. Additionally, all types of VFAs were produced under pH no-adjustment (approximately 5) and at pH 10.5. This research might lead to interesting questions and ideas for further studies on the complex metabolic pathways of microbial communities in the mixture of a soil solution and food waste leachate.

Synthesis of biodiesel from an oil fraction separated from food waste leachate

2011 ◽  
Vol 28 (12) ◽  
pp. 2287-2292 ◽  
Author(s):  
Mi Jin Yu ◽  
Yong-Beom Jo ◽  
Sang-Guk Kim ◽  
Young-Kwan Lim ◽  
Jong-Ki Jeon ◽  
...  
Keyword(s):  
Food Waste ◽  
Oil Fraction ◽  
Food Waste Leachate ◽  
Waste Leachate

Increasing 2 -Bio- (H2 and CH4) production from food waste by combining two-stage anaerobic digestion and electrodialysis for continuous volatile fatty acids removal

2021 ◽  
Vol 129 ◽  
pp. 20-25
Author(s):  
Gamal K. Hassan ◽  
Rhys Jon Jones ◽  
Jaime Massanet-Nicolau ◽  
Richard Dinsdale ◽  
M.M. Abo-Aly ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Volatile Fatty Acids ◽  
Two Stage ◽  
Ch4 Production
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