Effects of different carriers on biogas production and microbial community structure during anaerobic digestion of cassava ethanol wastewater

2016 ◽  
Vol 38 (18) ◽  
pp. 2253-2262 ◽  
Author(s):  
Zhou Han ◽  
Feier Chen ◽  
Chao Zhong ◽  
Jun Zhou ◽  
Xiayuan Wu ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Microbial Community Structure ◽  
Biogas Production

scholarly journals Effects of shearing on biogas production and microbial community structure during anaerobic digestion with recuperative thickening

2017 ◽  
Vol 234 ◽  
pp. 439-447 ◽  
Author(s):  
Shufan Yang ◽  
Hop V. Phan ◽  
Heriberto Bustamante ◽  
Wenshan Guo ◽  
Hao H. Ngo ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Microbial Community Structure ◽  
Biogas Production

scholarly journals Effect of Clinoptilolite and Halloysite Addition on Biogas Production and Microbial Community Structure during Anaerobic Digestion

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4127
Author(s):  
Martyna Ciezkowska ◽  
Tomasz Bajda ◽  
Przemyslaw Decewicz ◽  
Lukasz Dziewit ◽  
Lukasz Drewniak
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Microbial Community Structure ◽  
Biogas Production ◽  
Oxygen Demand ◽  
Maize Silage ◽  
Gas Treatment ◽  
Significant Difference

The study presents a comparison of the influence of a clinoptilolite-rich rock—zeolite (commonly used for improving anaerobic digestion processes)—and a highly porous clay mineral, halloysite (mainly used for gas purification), on the biogas production process. Batch experiments showed that the addition of each mineral increased the efficiency of mesophilic anaerobic digestion of both sewage sludge and maize silage. However, halloysite generated 15% higher biogas production during maize silage transformation. Halloysite also contributed to a much higher reduction of chemical oxygen demand for both substrates (by ~8% for maize silage and ~14% for sewage sludge) and a higher reduction of volatile solids and total ammonia for maize silage (by ~8% and ~4%, respectively). Metagenomic analysis of the microbial community structure showed that the addition of both mineral sorbents influenced the presence of key members of archaea and bacteria occurring in a well-operated biogas reactor. The significant difference between zeolite and halloysite is that the latter promoted the immobilization of key methanogenic archaea Methanolinea (belong to Methanomicrobia class). Based on this result, we postulate that halloysite could be useful not only as a sorbent for (bio)gas treatment methodologies but also as an agent for improving biogas production.

Effect of H2 addition on the microbial community structure of a mesophilic anaerobic digestion system

Energy ◽  
2020 ◽  
Vol 198 ◽  
pp. 117368 ◽  
Author(s):  
Xianpu Zhu ◽  
Liumeng Chen ◽  
Yichao Chen ◽  
Qin Cao ◽  
Xiaofeng Liu ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Microbial Community Structure ◽  
H2 Addition

scholarly journals Influence of Temperature on Biogas Production Efficiency and Microbial Community in a Two-Phase Anaerobic Digestion System

Water ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 133 ◽  
Author(s):  
Shiwei Wang ◽  
Fang Ma ◽  
Weiwei Ma ◽  
Ping Wang ◽  
Guang Zhao ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Production Efficiency ◽  
Biogas Production ◽  
Two Phase ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Acidogenic Phase ◽  
Methanogenic Phase

In this study, the influence of temperature on biogas production efficiency and the microbial community structure was investigated in a two-phase anaerobic digestion reactor for co-digestion of cow manure and corn straw. The results illustrated that the contents of solluted chemical oxygen demand (SCOD) and volatile fatty acid (VFA) in the acidogenic phase and biogas production in the methanogenic phase maintained relatively higher levels at temperatures ranging from 35–25 °C. The methane content of biogas production could be maintained higher than 50% at temperatures above 25 °C. The microbial community structure analysis indicated that the dominant functional bacteria were Acinetobacter, Acetitomaculum, and Bacillus in the acidogenic phase and Cenarchaeum in the methanogenic phase at 35–25 °C. However, the performances of the acidogenic phase and the methanogenic phase could be significantly decreased at a lower temperature of 20 °C, and microbial activity was inhibited obviously. Accordingly, a low temperature was adverse for the performance of the acidogenic and methanogenic phases, while moderate temperatures above 25 °C were more conducive to high biogas production efficiency.

Shifts of microbial community structure during anaerobic digestion of agro-industrial energetic crops and food industry byproducts

2012 ◽  
Vol 87 (9) ◽  
pp. 1302-1311 ◽  
Author(s):  
Giuseppe Merlino ◽  
Aurora Rizzi ◽  
Federica Villa ◽  
Claudia Sorlini ◽  
Massimo Brambilla ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Anaerobic Digestion ◽  
Microbial Community Structure ◽  
Food Industry
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