| Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste | |
| Alternative Title | Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste |
| Dong Xiaoying1; Shao Lijie2; Wang Yan3; Kou Wei2; Cao Yanxin2; Zhang Dalei2 | |
| 2015 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| ISSN | 1004-9541 |
| Volume | 23Issue:5Pages:847-852 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | CO-DIGESTION ACTIVATED-SLUDGE ILLUMINA MISEQ BED REACTORS FRUIT VFA Anaerobic digestion Semi-continuous Two-stage Biogas Chinese cabbage waste Microbial ecology |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Science-Technology Support Plan of China] |
| CSCD ID | CSCD:5447614 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/148628 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 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 |
| Recommended Citation 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. |
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