Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste

doi:10.1016/j.biortech.2017.07.098

	Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste
	Li, Dong 1; Chen, Lin 1; Liu, Xiaofeng 1; Mei, Zili 2; Ren, Haiwei 3; Cao, Qin 1; Yan, Zhiying 1
刊名	Bioresource Technology
	2017
卷号	245 页码:90-97
关键词	Alkalinity Ammonia Effluents Indicators (instruments) pH Stability Trace elements Vegetables Volatile fatty acids
ISSN号	09608524
DOI	10.1016/j.biortech.2017.07.098
英文摘要	In order to elucidate the instability mechanism, screen early warning indicators, and propose control measures, the mesophilic digestion of vegetable waste (VW) was carried out at organic loading rates (OLR) of 0.5, 1.0, and 1.5 g volatile solid (VS)/(L d). The process parameters, including biogas components, volatile fatty acids (VFA), ammonia, pH, total alkalinity (TA), bicarbonate alkalinity (BA), and intermediate alkalinity (IA), were monitored every day. Digestion was inhibited at OLR of 1.5 g VS/(L d). The primary causes of instability are a high sugar and negligible ammonia content, in addition to the feed without effluent recirculation, which led to BA loss. The ratios of CH4/CO2, VFA/BA, propionate, n-butyrate and iso-valerate were selected as early warning indicators. In order to maintain the digestion of VW at a high OLR, control measures including effluent recirculation and trace element addition are recommended. © 2017 Elsevier Ltd
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000412443500011
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151309]
专题	生命科学与工程学院
作者单位	1.Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu; 610041, China; 2.Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture, Biogas Institute of Ministry of Agriculture, Chengdu; 610041, China; 3.School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Dong,Chen, Lin,Liu, Xiaofeng,et al. Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste[J]. Bioresource Technology,2017,245:90-97.
APA	Li, Dong.,Chen, Lin.,Liu, Xiaofeng.,Mei, Zili.,Ren, Haiwei.,...&Yan, Zhiying.(2017).Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste.Bioresource Technology,245,90-97.
MLA	Li, Dong,et al."Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste".Bioresource Technology 245(2017):90-97.