Anaerobic co-digestion of sewage sludge and food waste for hydrogen and VFA production with microbial community analysis

2018 ◽  
Vol 78 ◽  
pp. 789-799 ◽  
Author(s):  
Zhipeng Li ◽  
Zhen Chen ◽  
Hong Ye ◽  
Yuanpeng Wang ◽  
Weiang Luo ◽  
...  
Keyword(s):  
Microbial Community ◽  
Sewage Sludge ◽  
Food Waste ◽  
Community Analysis ◽  
Microbial Community Analysis

Hydrogen fermentation of food waste by alkali-shock pretreatment: Microbial community analysis and limitation of continuous operation

2015 ◽  
Vol 186 ◽  
pp. 215-222 ◽  
Author(s):  
Sujin Jang ◽  
Dong-Hoon Kim ◽  
Yeo-Myeong Yun ◽  
Mo-Kwon Lee ◽  
Chungman Moon ◽  
...  
Keyword(s):  
Microbial Community ◽  
Food Waste ◽  
Community Analysis ◽  
Continuous Operation ◽  
Microbial Community Analysis

Start-up of bio-hydrogen production reactor seeded with sewage sludge and its microbial community analysis

2005 ◽  
Vol 52 (1-2) ◽  
pp. 115-121 ◽  
Author(s):  
M.L. Gong ◽  
N.Q. Ren ◽  
D.F. Xing
Keyword(s):  
Microbial Community ◽  
Sewage Sludge ◽  
Hydrogen Production ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Community Analysis ◽  
Microbial Community Analysis ◽  
Organic Loading Rate ◽  
Start Up ◽  
Gradient Gel Electrophoresis ◽  
Continuously Stirred Tank Reactor

Start-up of a continuously stirred tank reactor for bio-hydrogen production under different initial organic loading rate (OLR) of 3, 7 and 10 kgCOD/m3 d, respectively, was carried out with sewage sludge as inoculum. Molasses wastewater was used as substrate and hydraulic retention time was kept at 6 h. This study aimed to assess OLR on the formation of fermentation types and the structure of microbial communities during the start-up period. It was found that at an initial OLR of 7 kgCOD/m3 d and an initial biomass of 6.24 gVSS/L, an equilibrial microbial community of ethanol-type fermentation could be established within 30 days. The observed average specific hydrogen production rate was 276 mLH2/gVSS d, which was 40% higher than that of the one acclimated with 3 kgCOD/m3 d. Based on denaturing gradient gel electrophoresis profiles, significant microbial population shifts took place at the first 15 days, but a longer period up to 30 days was required to establish a microbial community with stable metabolic activity.

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