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Fermentation enhancement of methanogenic archaea consortia from an Illinois basin coalbed via DOL emulsion nutrition.

Xiao D, Peng SP, Wang EY - PLoS ONE (2015)

Bottom Line: Microbially enhanced coalbed methane technology must be used to increase the methane content in mining and generate secondary biogenic gas.In this technology, the metabolic processes of methanogenic consortia are the basis for the production of biomethane from some of the organic compounds in coal.To enhance the methane production rates for microorganism consortia, different types of nutrition solutions were examined in this study.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiang Su province, China.

ABSTRACT
Microbially enhanced coalbed methane technology must be used to increase the methane content in mining and generate secondary biogenic gas. In this technology, the metabolic processes of methanogenic consortia are the basis for the production of biomethane from some of the organic compounds in coal. Thus, culture nutrition plays an important role in remediating the nutritional deficiency of a coal seam. To enhance the methane production rates for microorganism consortia, different types of nutrition solutions were examined in this study. Emulsion nutrition solutions containing a novel nutritional supplement, called dystrophy optional modification latex, increased the methane yield for methanogenic consortia. This new nutritional supplement can help methanogenic consortia form an enhanced anaerobic environment, optimize the microbial balance in the consortia, and improve the methane biosynthesis rate.

No MeSH data available.


Related in: MedlinePlus

pH changes during the methane yield process in nutrition solution #1.The pH decreased with increasing methane yield rate.
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pone.0124386.g008: pH changes during the methane yield process in nutrition solution #1.The pH decreased with increasing methane yield rate.

Mentions: pH is an important factor influencing the environmental conditions and metabolism of the methanogenic consortium. A lower pH can help achieve a higher methane yield rate more rapidly. Hydrogen ions are generated during the bacterial metabolic processes of hydrolytic and fermentative bacteria. A higher concentration of hydrogen ions may provide a more suitable and favorable culture environment. The pH experiment showed that the community had the ability and tendency to alter the culture environment (Figs 8 and 9). In both the #1 and #2 culture experiments, the pH decreased when the methane yield rate increased. In the #2 experiment, this phenomenon was more pronounced. Over 23 days, the pH dropped from 8.21 to 7.40.


Fermentation enhancement of methanogenic archaea consortia from an Illinois basin coalbed via DOL emulsion nutrition.

Xiao D, Peng SP, Wang EY - PLoS ONE (2015)

pH changes during the methane yield process in nutrition solution #1.The pH decreased with increasing methane yield rate.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4401573&req=5

pone.0124386.g008: pH changes during the methane yield process in nutrition solution #1.The pH decreased with increasing methane yield rate.
Mentions: pH is an important factor influencing the environmental conditions and metabolism of the methanogenic consortium. A lower pH can help achieve a higher methane yield rate more rapidly. Hydrogen ions are generated during the bacterial metabolic processes of hydrolytic and fermentative bacteria. A higher concentration of hydrogen ions may provide a more suitable and favorable culture environment. The pH experiment showed that the community had the ability and tendency to alter the culture environment (Figs 8 and 9). In both the #1 and #2 culture experiments, the pH decreased when the methane yield rate increased. In the #2 experiment, this phenomenon was more pronounced. Over 23 days, the pH dropped from 8.21 to 7.40.

Bottom Line: Microbially enhanced coalbed methane technology must be used to increase the methane content in mining and generate secondary biogenic gas.In this technology, the metabolic processes of methanogenic consortia are the basis for the production of biomethane from some of the organic compounds in coal.To enhance the methane production rates for microorganism consortia, different types of nutrition solutions were examined in this study.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiang Su province, China.

ABSTRACT
Microbially enhanced coalbed methane technology must be used to increase the methane content in mining and generate secondary biogenic gas. In this technology, the metabolic processes of methanogenic consortia are the basis for the production of biomethane from some of the organic compounds in coal. Thus, culture nutrition plays an important role in remediating the nutritional deficiency of a coal seam. To enhance the methane production rates for microorganism consortia, different types of nutrition solutions were examined in this study. Emulsion nutrition solutions containing a novel nutritional supplement, called dystrophy optional modification latex, increased the methane yield for methanogenic consortia. This new nutritional supplement can help methanogenic consortia form an enhanced anaerobic environment, optimize the microbial balance in the consortia, and improve the methane biosynthesis rate.

No MeSH data available.


Related in: MedlinePlus