Research on the Efficiency of Acid-Producing and Gas-Producing Based on the Enhancement of High-Performance Composite Strains

Guo Xiang Zheng; Tian Fu Liu; Li Li Yin; Yuan Bei Zhang; Jie Yang

doi:10.4028/www.scientific.net/AMR.807-809.1232

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The Research Progress of Comprehensive Utilization of Crop Straw
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Key Technologies for Ecological Treatment on Livestock Feeding Residue
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Research on the Efficiency of Acid-Producing and Gas-Producing Based on the Enhancement of High-Performance Composite Strains
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Effectiveness and Mechanism of the In Situ Formed Iron Hydroxide (FeO_xH_y) towards the Removal of Phosphate by Coagulation and Adsorption
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 807-809Research on the Efficiency of Acid-Producing and...

Research on the Efficiency of Acid-Producing and Gas-Producing Based on the Enhancement of High-Performance Composite Strains

Abstract:

A batch test was carried out to investigate the effect of acid-producing fermentative characteristic of a new complex strains LZF-12 with high lignocellulose-degradation ability, which straw was the only carbon source in acidogenic phase. Simultaneity, the biogas-producing performance was also researched by shifting the liquid end products from acidongenic phase to methane phase, which fermentative substrate was the mixture of cow dung and kitchen waste. The results indicated that major fermentation products of acidogenic phase was acetic acid accounted for 70% of total volatile acid, which would be in favor of microorganisms growth of methanogenic phase. In two-phase anaerobic fermentation system, the straw degradation rate of composite strains LZF-12 reached the maximum at 72 hour, among which the degradation rate of cellulose, hemicellulose and lignin reached 55%, 67% and 13% respectively. The methane percentage of biogas-producing phase was more than 50% and 134.7mL/g VS of methane production rate was obtained.

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Periodical:

Advanced Materials Research (Volumes 807-809)

Pages:

1232-1235

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.807-809.1232

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Online since:

September 2013

Authors:

Guo Xiang Zheng, Tian Fu Liu, Li Li Yin, Yuan Bei Zhang, Jie Yang

Keywords:

Anaerobic Fermentation, Composite Strains, Methane, Semi-Continuous

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