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Effect of bioaugmentation on the microbial community and mono-digestion performance of Pennisetum hybrid

文献类型：期刊论文

作者Li Lianhua1,3,4; Li Ying3,4; Sun Yongming3,4; Yuan Zhenhong2,3,4; Kang Xihui1,3,4; Zhang Yi1,3,4; Yang Gaixiu3,4
刊名WASTE MANAGEMENT
出版日期2018-08-01
卷号78页码:741-749
关键词Pennisetum hybrid Mono-digestion Bioaugmentation Stability Microorganism community
ISSN号0956-053X
DOI10.1016/j.wasman.2018.06.031
通讯作者Sun Yongming(sunym@ms.giec.ac.cn)
英文摘要In this study, bioaugmentation with methanogenic propionate-utilizing enrichment was investigated as a method to improve the mono-digestion performance of Pennisetum hybrid in a semi-continuous mode. The effect of bioaugmentation on the microbial community was analyzed as well. The results demonstrate that the steady-state organic loading rate (OLR) of the bioaugmented reactor increased to 4.0 g VS/(L.d) with a volumetric biogas production of 1.95 +/- 0.17 m(3)/(m(3).d). In contrast, the nonbioaugmented reactor failed at an OLR of 2.0 g VS/(L.d) accompanied with the accumulation of volatile fatty acids (VFAs). The results of whole genome pyrosequencing analysis suggest that the decrease in relative abundance of syntrophic butyrate and propionate oxidizers, such as Syntrophomonas, Syntrophobacter, and Syntrophorhabdus, reduced the conversion efficiency of butyrate and propionate which leads to the accumulation of butyrate and propionate, influencing the performance of the mono-digestion reactor. Conversely, in the bioaugmented reactor, the higher density of protein- and amino acid-utilizing bacteria, such as Proteiniphilum, Thermovirga, and Lutaonella, as well as the syntrophic association of Syntrophomonas spp. coupled with the methanogens Methanosarcina and Methanocella has a positive effect on system stability and performance. (C) 2018 Published by Elsevier Ltd.
WOS关键词OVERLOADED ANAEROBIC DIGESTERS ; LONG-TERM OPERATION ; CO-DIGESTION ; BIOGAS PRODUCTION ; GRASS-SILAGE ; METHANE PRODUCTION ; GEN. NOV. ; ENERGY CROPS ; WASTE-WATER ; MANURE
资助项目National Key Research and Development Program of China[2017FYD0800801] ; National Natural Science Foundation of China[51708538] ; Bureau of International Cooperation, Chinese Academy of Sciences[182344KYSB20170009] ; Science and Technology Planning Project of Guangdong Province[2017A050501049] ; Science and Technology Planning Project of Guangdong Province[2017B020 238002] ; Science and Technology Program of Guangzhou[201707010201] ; Natural Science Foundation of Guangdong Province[2016A030312007]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000444660600078
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Bureau of International Cooperation, Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Program of Guangzhou ; Natural Science Foundation of Guangdong Province
源URL[http://ir.giec.ac.cn/handle/344007/23888]  
专题中国科学院广州能源研究所
通讯作者Sun Yongming
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Henan, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
4.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Li Lianhua,Li Ying,Sun Yongming,et al. Effect of bioaugmentation on the microbial community and mono-digestion performance of Pennisetum hybrid[J]. WASTE MANAGEMENT,2018,78:741-749.
APA Li Lianhua.,Li Ying.,Sun Yongming.,Yuan Zhenhong.,Kang Xihui.,...&Yang Gaixiu.(2018).Effect of bioaugmentation on the microbial community and mono-digestion performance of Pennisetum hybrid.WASTE MANAGEMENT,78,741-749.
MLA Li Lianhua,et al."Effect of bioaugmentation on the microbial community and mono-digestion performance of Pennisetum hybrid".WASTE MANAGEMENT 78(2018):741-749.

入库方式： OAI收割

来源：广州能源研究所

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