Performance and microbial community variations of a upflow anaerobic sludge blanket (UASB) reactor for treating monosodium glutamate wastewater: Effects of organic loading rate

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

	Performance and microbial community variations of a upflow anaerobic sludge blanket (UASB) reactor for treating monosodium glutamate wastewater: Effects of organic loading rate
	Chen, Hong; Wei, Yanxiao; Liang, Peng; Wang, Chunyan; Hu, Yingbing; Xie, Min; Wang, Yiyu; Xiao, Benyi; Du, Chunyan; Tian, Hong
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2020
卷号	253 页码:1-10
关键词	Anaerobic digestion Energy recovery Methanogenic degradation Specific methanogenic activity Up-flow anaerobic sludge blanket Wastewater treatment
ISSN号	0301-4797
英文摘要	To investigate the effect of the organic loading rate (OLR) on anaerobic treatment of monosodium glutamate (MSG) wastewater, a lab-scale up-flow anaerobic blanket (UASB) reactor was continuously operated over a 222-day period. The overall performances of COD removal and methane recovery initially exhibited an increase and subsequently decreased when the OLR was increased from 1 g-COD/L/d to 24 g-COD/L/d. At the optimal OLR of 8 g-COD/L/d, superior performance was obtained with a maximum COD removal efficiency of 97%, a methane production rate of 2.3 L/L/d, and specific methanogenic activity of 86 mg-CH4/g-VSS/d (feeding on glutamate), with superior characteristics of sludge in VSS concentration, average diameter of granules, and settling velocity. According to the results of the specific methanogenic activity, the methanogenic pathway was more inclined to pass through acetate than through hydrogen. Methanosarcina instead of Methanosaeta, with Methanobacterium and greatly increased Firmicutes, dominated in the UASB reactor after long term operation. These results support that the OLR had a substantial effect on both the treatment and energy recovery efficiency of MSG wastewater as well as on microbial community variations in the UASB reactor.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45053]
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	Chen, Hong,Wei, Yanxiao,Liang, Peng,et al. Performance and microbial community variations of a upflow anaerobic sludge blanket (UASB) reactor for treating monosodium glutamate wastewater: Effects of organic loading rate[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2020,253:1-10.
APA	Chen, Hong.,Wei, Yanxiao.,Liang, Peng.,Wang, Chunyan.,Hu, Yingbing.,...&Tian, Hong.(2020).Performance and microbial community variations of a upflow anaerobic sludge blanket (UASB) reactor for treating monosodium glutamate wastewater: Effects of organic loading rate.JOURNAL OF ENVIRONMENTAL MANAGEMENT,253,1-10.
MLA	Chen, Hong,et al."Performance and microbial community variations of a upflow anaerobic sludge blanket (UASB) reactor for treating monosodium glutamate wastewater: Effects of organic loading rate".JOURNAL OF ENVIRONMENTAL MANAGEMENT 253(2020):1-10.