Effect of Biochar Addition on the Microbial Community and Methane Production in the Rapid Degradation Process of Corn Straw

doi:10.3390/en14082223

	Effect of Biochar Addition on the Microbial Community and Methane Production in the Rapid Degradation Process of Corn Straw
	Wang, Zhi 2,3,4,5; Guo, Ying 3,4,5; Wang, Weiwei 6; Chen, Liumeng 1; Sun, Yongming 3,4,5; Xing, Tao 3,4,5; Kong, Xiaoying 3,4,5
刊名	ENERGIES
	2021-04-01
卷号	14 期号:8 页码:13
关键词	biochar corn straw anaerobic digestion methane microbial community
DOI	10.3390/en14082223
通讯作者	Xing, Tao(xingtao@ms.giec.ac.cn) ; Kong, Xiaoying(kongxy@ms.giec.ac.cn)
英文摘要	Anaerobic digestion with corn straw faces the problems of difficult degradation, long fermentation time and acid accumulation in the high concentration of feedstocks. In order to speed up the process of methane production, corn straw treated with sodium hydroxide was used in thermophilic (50 degrees C) anaerobic digestion, and the effects of biochar addition on the performance of methane production and the microbial community were analyzed. The results showed that the cumulative methane production of all treatment groups reached over 75% of the theoretical methane yield in 7 days and the addition of 4% biochar increased the cumulative methane production by 6.75% compared to the control group. The addition of biochar also decreased the number of biogas and methane production peaks from 2 to 1, and had a positive effect on shortening the digestion start-up period and reducing the fluctuation of biogas production during the digestion process. The addition of 4% biochar increased the abundance of the bacterial family Peptococcaceae throughout the digestion period, promoting the hydrolysis rate of corn straw. The dominant archaeal genus Methanosarcina was significantly more abundant at the peak stage and the end of methane production with 4% biochar added compared to the control group.
WOS研究方向	Energy & Fuels
语种	英语
出版者	MDPI
WOS记录号	WOS:000644146500001
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33003]
专题	中国科学院广州能源研究所
通讯作者	Xing, Tao; Kong, Xiaoying
作者单位	1.Jiangxi Acad Agr Sci, Inst Appl Agr Microorganism, Nanchang 330200, Jiangxi, Peoples R China 2.Univ Chinese Acad Sci, Chem Engn, Beijing 100049, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 6.Univ Sci & Technol China, Acad Chem & Mat Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhi,Guo, Ying,Wang, Weiwei,et al. Effect of Biochar Addition on the Microbial Community and Methane Production in the Rapid Degradation Process of Corn Straw[J]. ENERGIES,2021,14(8):13.
APA	Wang, Zhi.,Guo, Ying.,Wang, Weiwei.,Chen, Liumeng.,Sun, Yongming.,...&Kong, Xiaoying.(2021).Effect of Biochar Addition on the Microbial Community and Methane Production in the Rapid Degradation Process of Corn Straw.ENERGIES,14(8),13.
MLA	Wang, Zhi,et al."Effect of Biochar Addition on the Microbial Community and Methane Production in the Rapid Degradation Process of Corn Straw".ENERGIES 14.8(2021):13.