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

doi:10.1016/j.wasman.2018.06.031

GIEC OpenIR

	Effect of bioaugmentation on the microbial community and mono-digestion performance of Pennisetum hybrid
	Li Lianhua1,2,3 ; Li Ying1,3 ; Sun Yongming1,3 ; Yuan Zhenhong1,3,4 ; Kang Xihui 1,2,3; Zhang Yi 1,2,3; Yang Gaixiu1,3
	2018-08-01
发表期刊	WASTE MANAGEMENT
ISSN	0956-053X
卷号	78 页码:741-749
通讯作者	Sun Yongming(sunym@ms.giec.ac.cn)
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.
关键词	Pennisetum hybrid Mono-digestion Bioaugmentation Stability Microorganism community
DOI	10.1016/j.wasman.2018.06.031
关键词[WOS]	OVERLOADED ANAEROBIC DIGESTERS ; LONG-TERM OPERATION ; CO-DIGESTION ; BIOGAS PRODUCTION ; GRASS-SILAGE ; METHANE PRODUCTION ; GEN. NOV. ; ENERGY CROPS ; WASTE-WATER ; MANURE
收录类别	SCI
语种	英语
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
项目资助者	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
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000444660600078
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/23889
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.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 4.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Henan, Peoples R China
第一作者单位	中国科学院广州能源研究所
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.