Effects of organic loading rates on the anaerobic co-digestion of fresh vinegar residue and pig manure: Focus on the performance and microbial communities

doi:10.1016/j.bej.2022.108441

GIEC OpenIR

	Effects of organic loading rates on the anaerobic co-digestion of fresh vinegar residue and pig manure: Focus on the performance and microbial communities
	Chen, Lin 1,2; Meng, Xiaoshan 1; Zhou, Guannan 1; Zhou, Zhengzhong 1; Zheng, Tao 3,4; Bai, Yinge 4; Yuan, Haoran1,3 ; Huhe, Taoli 1
	2022-06-01
发表期刊	BIOCHEMICAL ENGINEERING JOURNAL
ISSN	1369-703X
卷号	183 页码:12
通讯作者	Zhou, Zhengzhong(zhouzhengzhong@cczu.edu.cn)
摘要	The 70 L mesophilic semi-continuous stirred tank reactor (semi-CSTR) for co-digestion of fresh vinegar residue (FVR) and pig manure (PM) was operated for 180 days to evaluate the behavior of process stability, inhibition and recovery, as well as the succession of microbial community structures with the increasing organic loading rates (OLRs). The maximum tolerable OLR for co-digestion was determined to be 5.0 g-VS/(L.d), achieving an average methane yield (MY) of 233.77 mL/g-VS. The feeding was paused for 7 days due to the accumulation of volatile fatty acids (VFAs), and then recovered at 5.5 g-VS/(L.d) with the maximum MY of 230.09 mL/g-VS. Meanwhile, the effect of OLRs on the microbial community was analyzed. It showed that there is a significant correlation between most of the major bacteria and VFA. PCA showed that stopping feeding and reducing OLR could change the bacterial community, but not archaeal community. The aceticlastic Methanosaeta was dominant at stable stage, and gradually replaced by the hydrogenotrophic methanogen, leading to the accumulation of acetate with increasing OLR. In the recovery stage, Methanosarcina became dominant to utilize the residual acetate. Due to the vigorous aceticlastic pathway of methanogenesis, the hydrogenotrophic pathway was depressed and the H2 pressure increased, causing the accumulation of propionate in a short time. With the relative abundance of Methanosarcina increasing constantly, the VFA except propionate decreased, suggesting that Methanosarcina transformed acetate and hydrogen into methane during the recovery stage.Supplementary Material_V4.doc
关键词	Anaerobic co-digestion Fresh vinegar residue Pig manure OLR Methanosarcina
DOI	10.1016/j.bej.2022.108441
关键词[WOS]	SYNTROPHIC ACETATE OXIDATION ; METHANE POTENTIAL BMP ; FOOD WASTE ; ELECTRON-TRANSFER ; PRETREATMENT ; DYNAMICS ; SLUDGE ; METHANOSARCINA ; DIVERSITY ; SEQUENCES
收录类别	SCI
语种	英语
资助项目	Science and Technology Project of Changzhou City[CJ20210115] ; Natural Science Foundation of Colleges in Jiangsu Province[21KJB610004] ; Research Foundation of Changzhou University[ZMF20020443] ; Innovation Academy for Green Manufacture[IAGM2020C18]
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering
项目资助者	Science and Technology Project of Changzhou City ; Natural Science Foundation of Colleges in Jiangsu Province ; Research Foundation of Changzhou University ; Innovation Academy for Green Manufacture
WOS类目	Biotechnology & Applied Microbiology ; Engineering, Chemical
WOS记录号	WOS:000804944600003
出版者	ELSEVIER
引用统计	被引频次：6[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/344007/36935
专题	中国科学院广州能源研究所
通讯作者	Zhou, Zhengzhong
作者单位	1.Changzhou Univ, Inst Urban & Rural Min, Natl Local Joint Engn Res Ctr Biomass Refining & H, Changzhou 213164, Peoples R China 2.Changzhou Univ, Adv Catalysis Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Chen, Lin,Meng, Xiaoshan,Zhou, Guannan,et al. Effects of organic loading rates on the anaerobic co-digestion of fresh vinegar residue and pig manure: Focus on the performance and microbial communities[J]. BIOCHEMICAL ENGINEERING JOURNAL,2022,183:12.
APA	Chen, Lin.,Meng, Xiaoshan.,Zhou, Guannan.,Zhou, Zhengzhong.,Zheng, Tao.,...&Huhe, Taoli.(2022).Effects of organic loading rates on the anaerobic co-digestion of fresh vinegar residue and pig manure: Focus on the performance and microbial communities.BIOCHEMICAL ENGINEERING JOURNAL,183,12.
MLA	Chen, Lin,et al."Effects of organic loading rates on the anaerobic co-digestion of fresh vinegar residue and pig manure: Focus on the performance and microbial communities".BIOCHEMICAL ENGINEERING JOURNAL 183(2022):12.