Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis | |
Xing, Tao1,2,3,4; Kong, Xiaoying1,2,3 ; Dong, Pengyu1; Zhen, Feng1,2,3; Sun, Yongming1,2,3
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| 2020-02-06 | |
| Source Publication | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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| ISSN | 0268-2575 |
| Pages | 9 |
| Corresponding Author | Sun, Yongming(sunym@ms.giec.ac.cn) |
| Abstract | BACKGROUND A leach-bed reactor (LBR) with leachate recirculation is a suitable technology for lignocellulosic biomass anaerobic digestion. In this study, the effect of percolate reflux strategies (continuous recirculation and intermittent recirculation) on methane production from Pennisetum hybrid, a type of energy crop, was investigated using a two-layered LBR. RESULTS Compared to a solid-state anaerobic digestion batch test, LBRs with percolate recirculation provide a stable process with a short lag phase by avoiding inhibition of volatile fatty acid accumulation and inoculation effect. The results also indicated that continuous reflux led to a lower accumulative methane yield (56.20 L kg(-1) VS) compared to intermittent reflux (78.50 L kg(-1) VS), resulting from washing effect and poorer distribution on the lower layer. According to microbial analysis, Bacteroidetes, Firmicutes, Proteobacteria and Synergistetes were the most predominant bacterial phyla in each LBR test sample and aceticlastic methanogen (at least >55%) plays a predominant role for methane production in all samples. CONCLUSIONS The results indicate that leachate recirculation could provide stable conditions for methane yield; however, two-layer reactor designs which cannot guarantee the desired distribution in the lower layer result in a low methane yield. Suitable design of LBRs to maintain a well-distributed reflux leachate should be further investigated. (c) 2019 Society of Chemical Industry |
| Keyword | biomass anaerobic digestion solid-state fermentation leaching biogas |
| DOI | 10.1002/jctb.6310 |
| WOS Keyword | CO-DIGESTION ; BIOGAS PRODUCTION ; BED REACTOR ; LIGNOCELLULOSIC BIOMASS ; METHANE PRODUCTION ; PERFORMANCE ; WASTE ; RATIO ; STRATEGIES ; INOCULUM |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51808528] ; Science and Technology Planning Project of Guangdong Province[2017B020238005] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Bureau of International Cooperation, Chinese Academy of Sciences[182344KYSB20170009] ; Science and Technology Program of Guangzhou[201803030007] |
| WOS Research Area | Biotechnology & Applied Microbiology ; Chemistry ; Engineering |
| Funding Organization | National Natural Science Foundation of China ; Science and Technology Planning Project of Guangdong Province ; Strategic Priority Research Program of Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Science and Technology Program of Guangzhou |
| WOS Subject | Biotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000511354000001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26439 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Sun, Yongming |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xing, Tao,Kong, Xiaoying,Dong, Pengyu,et al. Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2020:9. |
| APA | Xing, Tao,Kong, Xiaoying,Dong, Pengyu,Zhen, Feng,&Sun, Yongming.(2020).Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,9. |
| MLA | Xing, Tao,et al."Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2020):9. |
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