Performance improvement and model of a bio-electrochemical system built-in up-flow anaerobic sludge blanket for treating beta-lactams pharmaceutical wastewater under different hydraulic retention time

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Performance improvement and model of a bio-electrochemical system built-in up-flow anaerobic sludge blanket for treating beta-lactams pharmaceutical wastewater under different hydraulic retention time
	Hu, Dongxue ; Min, Hongchao ; Chen, Zhaobo ; Zhao, Yuanyi ; Cui, Yubo ; Zou, Xuejun ; Wu, Pan ; Ge, Hui ; Luo, Kongyan ; Zhang, Lufeng
刊名	WATER RESEARCH
	2019-11-01
卷号	164 页码:-
关键词	Up-flow bio-electrochemical system (UBES) Up-flow anaerobic sludge blanket (UASB) beta-lactams pharmaceutical wastewater Hydraulic retention time (HRT) Volatile fatty acid (VFA) Mathematical model
ISSN号	0043-1354
英文摘要	This paper focused on the performance of an up-flow bio-electrochemical system (UBES) for treating the 3-lactams pharmaceutical wastewater under different hydraulic retention time (HRT). UBES is added a bio-electrochemical system below the three-phase separator based on up-flow anaerobic sludge blanket (UASB). Comparisons of chemical oxygen demand (COD) removal, accumulation of volatile fatty acid (VFA) and biogas production were investigated during the 316-day operation time, which was divided into five parts with HRT of 96 h, 72 h, 48 h, 36 h and 20 h, respectively. The average COD removal efficiency of UBES could reach 45.3 +/- 7.5%, 72.2 +/- 3.5%, 86.2 +/- 1.4%, 75.9 +/- 1.8% and 64.9 +/- 2.0%, which were 2.4%, 6.1%, 6.4%, 10.2%, 8.7% more than those of UASB under different HRTs, respectively. Biogas production as well as methane production of UBES were significantly higher than UASB during the whole changing HRT process, the maximum methane yield of UBES was 0.31 +/- 0.07 L/gCOD(removed). Accumulation of VFA in UBES was discovered to be lighter than UASB, the minimum average VFA in UBES was 131.9 +/- 18.5 mg/L, which was obtained at HRT of 48 h. These results proved that UBES can slow down the inhibition of VFA on methanogens to make sure a good performance on COD removal and biogas production than UASB. Moreover, the relationships between methane production and VFA, biogas production and COD consumption were analyzed. A cost and benefit were analyzed for evaluating the potential of UBES in practical applications compared with UASB. Finally, radial basis function neural network (RBFNN) model was developed and fitted well with the experimental data, which can be employed to predict the effluent quality of the UBES and UASB. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43395]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
作者单位	1.Dalian Minzu Univ, Coll Environm & Resources, 18 Liaohe West Rd, Dalian 116600, Peoples R China 2.Jilin Jianzhu Univ, Sch Municipal & Environm Engn, Xincheng St 5088, Changchun 130118, Jilin, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Hu, Dongxue,Min, Hongchao,Chen, Zhaobo,et al. Performance improvement and model of a bio-electrochemical system built-in up-flow anaerobic sludge blanket for treating beta-lactams pharmaceutical wastewater under different hydraulic retention time[J]. WATER RESEARCH,2019,164:-.
APA	Hu, Dongxue.,Min, Hongchao.,Chen, Zhaobo.,Zhao, Yuanyi.,Cui, Yubo.,...&Wang, Hongcheng.(2019).Performance improvement and model of a bio-electrochemical system built-in up-flow anaerobic sludge blanket for treating beta-lactams pharmaceutical wastewater under different hydraulic retention time.WATER RESEARCH,164,-.
MLA	Hu, Dongxue,et al."Performance improvement and model of a bio-electrochemical system built-in up-flow anaerobic sludge blanket for treating beta-lactams pharmaceutical wastewater under different hydraulic retention time".WATER RESEARCH 164(2019):-.