Temperature-phased anaerobic co-digestion of food waste and paper waste with and without recirculation: Biogas production and microbial structure

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 水污染控制实验室

	Temperature-phased anaerobic co-digestion of food waste and paper waste with and without recirculation: Biogas production and microbial structure
	Li, Lu; Kong, Zhe; Qin, Yu; Wu, Jing; Zhu, Aijun; Xiao, Benyi; Ni, Jialing; Kubota, Kengo; Li, Yu-You
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-07-01
卷号	724 页码:1-10
关键词	Anaerobic co-digestion Temperature-phased Recirculation Microbial structure Biogas Paper waste
ISSN号	0048-9697
英文摘要	Two temperature-phased anaerobic digestion (TPAD) systems (55 degrees C in the first reactor and 35 degrees C in the second reactor) with and without recirculation were operated in parallel for the co-digestion of food waste and paper waste. A long-term experiment was carried out for these two systems with the paper waste ratios elevated from 0 to 50%. The removal efficiencies of COD, TS, VS, carbohydrate and protein in the recirculated TPAD system were higher than those of the non-recirculated system. The successful acclimation of thermophilic cellulose-degrading bacteria in the first reactor (RT1), partly due to recirculation, ensured the effective degradation of cellulose when the paper waste ratio was higher than 40%, resulting in the production of large amounts of hydrogen in reactor RT1. In the absence of recirculation, the main substance produced in the first reactor of the non-recirculated system (T1) was lactic acid. This gradually led to over-acidification and a low degradation efficiency and no methane or hydrogen was produced in T1. Recirculation helped to establish a stable bacterial community capable of producing bio-hydrogen in reactor RT1. The relatively low pH of 5.5 in the RT1 inhibited the activity of hydrogenotrophic archaea without consuming hydrogen, facilitating high hydrogen production levels.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45064]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Li, Lu,Kong, Zhe,Qin, Yu,et al. Temperature-phased anaerobic co-digestion of food waste and paper waste with and without recirculation: Biogas production and microbial structure[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,724:1-10.
APA	Li, Lu.,Kong, Zhe.,Qin, Yu.,Wu, Jing.,Zhu, Aijun.,...&Li, Yu-You.(2020).Temperature-phased anaerobic co-digestion of food waste and paper waste with and without recirculation: Biogas production and microbial structure.SCIENCE OF THE TOTAL ENVIRONMENT,724,1-10.
MLA	Li, Lu,et al."Temperature-phased anaerobic co-digestion of food waste and paper waste with and without recirculation: Biogas production and microbial structure".SCIENCE OF THE TOTAL ENVIRONMENT 724(2020):1-10.