Effects of Gas Supplying Patterns on Aerobic Anaerobic Biogas Production of Rice Straw

Author(s): Jingyu Li, Qinghua Ding, Wenzhe Li*, Weijia Gong.

Journal Name: Current Bioinformatics

Volume 14 , Issue 7 , 2019

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Abstract:

Background: Rice straw as a plant photosynthesis product, is a valuable renewable resource and it contains protein, fat, cellulose, hemicellulose, lignin and ash. It has received wide attention for biogas can solve both the energy and environment problems.

Objective: To improve the degradation rate of rice straw in aerobic and anaerobic bi-phase fermentation process.

Methods: Different aerobic methods were adopted to improve the degradation rate of aerobic acid producing cellulose.

Results: The results showed that in different ways of gas supply test experiments the total enzyme activity of aeration mode was higher than that of the stirring air supply mode, which indicated that the aeration mode was more favorable to the growth of mixed strains of Trichoderma and Aspergillus. The gas production of TS was 438.69 mL•g-1, which was higher than both the stirring group and control group.

Conclusion: The degradation utilization rate of rice straw solid organic matter can be significantly improved using method of aeration mode, and the conversion of straw biomass into biogas was promoted.

Keywords: Rice straw, degradation rate, gas production, bi-phase fermentation, aerobic methods, biogas.

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Article Details

VOLUME: 14
ISSUE: 7
Year: 2019
Page: [642 - 648]
Pages: 7
DOI: 10.2174/1574893613666180502112425
Price: $58

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