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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

Methane concentration changes for a methanogenic consortia cultured with nutrition solution #2 at 39°C and pH 8.21.The contents of the solution were (in g/L) NaHCO3, 0.20; NH4Cl, 1.00; NaH2PO4, 1.30; KCl, 0.50; MgSO4•7H2O, 0.20; CaCl2•5H2O, 0.10; C17H35COONa, 1.30; R1SO2OR2, 0.80; yeast extract, 0.50; resazurin, 0.10.
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pone.0124386.g006: Methane concentration changes for a methanogenic consortia cultured with nutrition solution #2 at 39°C and pH 8.21.The contents of the solution were (in g/L) NaHCO3, 0.20; NH4Cl, 1.00; NaH2PO4, 1.30; KCl, 0.50; MgSO4•7H2O, 0.20; CaCl2•5H2O, 0.10; C17H35COONa, 1.30; R1SO2OR2, 0.80; yeast extract, 0.50; resazurin, 0.10.

Mentions: In both experiments, an initial cultivation period was required before any significant methane production was observed. The first experiment required approximately 7 days, and the second experiment required approximately 6 days, i.e., methane production began 1 day earlier. For both experiments, the methane yield rates were not stable. A volatility factor was present during the methane production period. However, during the second experiment, no carbon dioxide was detected in the produced gas. This result indicates that the coalbed microbial community in solution #2 was more balanced than the community in solution #1 (Fig 6).


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

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

Methane concentration changes for a methanogenic consortia cultured with nutrition solution #2 at 39°C and pH 8.21.The contents of the solution were (in g/L) NaHCO3, 0.20; NH4Cl, 1.00; NaH2PO4, 1.30; KCl, 0.50; MgSO4•7H2O, 0.20; CaCl2•5H2O, 0.10; C17H35COONa, 1.30; R1SO2OR2, 0.80; yeast extract, 0.50; resazurin, 0.10.
© Copyright Policy
Related In: Results  -  Collection

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

pone.0124386.g006: Methane concentration changes for a methanogenic consortia cultured with nutrition solution #2 at 39°C and pH 8.21.The contents of the solution were (in g/L) NaHCO3, 0.20; NH4Cl, 1.00; NaH2PO4, 1.30; KCl, 0.50; MgSO4•7H2O, 0.20; CaCl2•5H2O, 0.10; C17H35COONa, 1.30; R1SO2OR2, 0.80; yeast extract, 0.50; resazurin, 0.10.
Mentions: In both experiments, an initial cultivation period was required before any significant methane production was observed. The first experiment required approximately 7 days, and the second experiment required approximately 6 days, i.e., methane production began 1 day earlier. For both experiments, the methane yield rates were not stable. A volatility factor was present during the methane production period. However, during the second experiment, no carbon dioxide was detected in the produced gas. This result indicates that the coalbed microbial community in solution #2 was more balanced than the community in solution #1 (Fig 6).

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