温度对FBAR反应器的运行特性及古菌微生物群落影响

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Abstract In order to investigate the change of characteristics and methanogenic microorganisms under three temperature stages. Comparison to the dynamic of methane character and archaea communites under three temperature stages of thermophilic (50℃), mesophilic(35℃) and psychrophilic(4℃). The result showed that the order of absolute biogas production from high to low was thermophilic (50℃), mesophilic(35℃) and psychrophilic(4℃). The order of biogas production mesophilic, psychrophilic and thermophilic was 2.84, 2.5 and 1.8L/OLR, respectively. The order of methane content psychrophilic, mesophilic and thermophilic was 74.5, 63.5 and 57.3%, respectively. The volatile organic acids content was a big influence under different temperature stage. Clone library analysis that the diversity of microbiology was significant difference within different temperature stage. Quantitative PCR analysis that the methanosaetaceae was the dominant methanogens within 50℃ and 35℃reactors, the methanomicrobiales was the dominant methanogens in the adhering sludge at 4℃. From energy consumption an economic benefit analysis that the biogas fermentation was more suitable under low temperature, and the main metabolic pathways was hydrogenotrophic methanogenesis.

Key words： fixed bed anaerobic reactor (FBAR) temperature operating characteristics microbial community methanogens

Received: 16 June 2017

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X703

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	Articles by authors
	ZHAO Hong-yan
	LI Xue
	LI Nan
	LIU Hong-dou
	PIAO Ren-zhe
	XU Guang-bo
	LI Yan-ru
	WANG Wei-dong
	CUI Zong-jun

Cite this article:

ZHAO Hong-yan,LI Xue,LI Nan等. Comparison to the characteristics and archaea communites under different temperature stages of thermophilic, mesophilic and psychrophilic of fixed bed anaerobic reactor[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(1): 169-178.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2018/V38/I1/169

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