Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste

IMR OpenIR

	Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste
其他题名	Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste
	Dong Xiaoying 1; Shao Lijie 2; Wang Yan 3; Kou Wei 2; Cao Yanxin 2; Zhang Dalei 2
	2015
发表期刊	CHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN	1004-9541
卷号	23 期号:5 页码:847-852
摘要	Anaerobic digestion of Chinese cabbage waste was investigated through a pilot-scale two-stage digester at a mesophilic temperature of 37 degrees C. In the acidification digester, the main product was acetic acid, with the maximum concentration of 4289 mg.L-1 on the fourth day, accounting for 50.32% of total volatile fatty acids. The oxidation reduction potential (ORP) and NH4+-N level decreased gradually with hydraulic retention time (HRT) of acidification. In the second digestion phase, the maximum methanogenic bacterial concentration reached 9.6 x 10(10) ml(-1) at the organic loading rate (OLR) of 3.5-4 kg VS.m(-3), with corresponding HRT of 12-16 days. Accordingly, the optimal biogas production was 0.62 m(3).(kg VS)(-1), with methane content of 65%-68%. ORP and NH4+-N levels in the methanizer remained between -500 and -560 mV and 2000-4500 mg.L-1, respectively. Methanococcus and Methanosarcina served as the main methanogens in the anaerobic digester. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
其他摘要	Anaerobic digestion of Chinese cabbage waste was investigated through a pilot-scale two-stage digester at a mesophilic temperature of 37 °C. In the acidification digester, the main product was acetic acid, with the maximum concentration of 4289 mg·L~(–1) on the fourth day, accounting for 50.32% of total volatile fatty acids. The oxidation reduction potential (ORP) and NH_4~+-N level decreased gradually with hydraulic retention time (HRT) of acidification. In the second digestion phase, the maximum methanogenic bacterial concentration reached 9.6 × 1010 ml~(–1) at the organic loading rate (OLR) of 3.5-4 kg VS·m~(–3), with corresponding HRT of 12-16 days. Accordingly, the optimal biogas production was 0.62 m~3·(kg VS)~(–1), with methane content of 65%-68%. ORP and NH_4~+-N levels in the methanizer remained between –500 and –560 mV and 2000-4500 mg·L~(–1), respectively. Methanococcus and Methanosarcina served as the main methanogens in the anaerobic digester.
关键词	CO-DIGESTION ACTIVATED-SLUDGE ILLUMINA MISEQ BED REACTORS FRUIT VFA Anaerobic digestion Semi-continuous Two-stage Biogas Chinese cabbage waste Microbial ecology
收录类别	CSCD
语种	英语
资助项目	[National Science-Technology Support Plan of China]
CSCD记录号	CSCD:5447614
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148628
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.Liaoning Institute Energy Technol, Yingkou 115000, Peoples R China 3.MAHLE Engine Components Co Ltd, Piston Ring Plant 115000, Yingkou, Peoples R China
推荐引用方式 GB/T 7714	Dong Xiaoying,Shao Lijie,Wang Yan,et al. Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2015,23(5):847-852.
APA	Dong Xiaoying,Shao Lijie,Wang Yan,Kou Wei,Cao Yanxin,&Zhang Dalei.(2015).Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste.CHINESE JOURNAL OF CHEMICAL ENGINEERING,23(5),847-852.
MLA	Dong Xiaoying,et al."Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste".CHINESE JOURNAL OF CHEMICAL ENGINEERING 23.5(2015):847-852.