Enhancement of surfactant biodegradation with an anaerobic membrane bioreactor by introducing microaeration

doi:10.1016/j.chemosphere.2018.06.001

CORC > 兰州理工大学 > 兰州理工大学

	Enhancement of surfactant biodegradation with an anaerobic membrane bioreactor by introducing microaeration
	Cheng, Zhenmin 1,2; Wei, Yuansong 1,2; Zhang, Qingqing 3; Zhang, Junya 1,2; Lu, Tiedong 4; Pei, Yuanmei 5
刊名	CHEMOSPHERE
	2018-10
卷号	208 页码:343-351
关键词	Anaerobic membrane bioreactor Surfactants accumulation Biodegradation Microaeration PCR analysis
ISSN号	0045-6535
DOI	10.1016/j.chemosphere.2018.06.001
英文摘要	In controlled ecological life support system (CELSS), 100% water recycle efficiency is needed. Both water and nutrients in wastewater needs reclaiming. In an anaerobic membrane bioreactor (AnMBR) designed to hydrolyze organic matters and convert organic nitrogen, accumulation of anionic surfactants and organic compounds was observed in the supernatant. To solve the problem, microaeration which had rarely been reported to enhance surfactants biodegradation in anaerobic process was introduced and it was proved to be an effective approach that resulted in concentrations of surfactants and soluble chemical oxygen demand (SCOD) in the supernatant decreasing from 9000 mg/L and 40000 mg/L to 2000 mg/L and 10000 mg/L, respectively. And the degradations followed the kinetic characteristics of zero order reaction with R-2 values of 0.9472 and 0.949. Three-dimensional excitation emission matrix (3D-EEM) analysis revealed that some activities of microbes were activated and enhanced by microaeration, which resulted in the disintegration of aggregates of large molecules, indicated by the size exclusion chromatography (SEC). After the introduction of microaeration, the emerging genera Aquamicrobium, Flaviflexus, Pseudomonas and Thiopseudomonas in the microbial community might be responsible for the effective biodegradation of the surfactants. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[21677161]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000441999400038
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32442]
专题	兰州理工大学
通讯作者	Wei, Yuansong
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 3.Renmin Univ China, Beijing 100872, Peoples R China 4.Guangxi Univ, Nanning 530004, Guangxi, Peoples R China 5.Lanzhou Univ Technol, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Zhenmin,Wei, Yuansong,Zhang, Qingqing,et al. Enhancement of surfactant biodegradation with an anaerobic membrane bioreactor by introducing microaeration[J]. CHEMOSPHERE,2018,208:343-351.
APA	Cheng, Zhenmin,Wei, Yuansong,Zhang, Qingqing,Zhang, Junya,Lu, Tiedong,&Pei, Yuanmei.(2018).Enhancement of surfactant biodegradation with an anaerobic membrane bioreactor by introducing microaeration.CHEMOSPHERE,208,343-351.
MLA	Cheng, Zhenmin,et al."Enhancement of surfactant biodegradation with an anaerobic membrane bioreactor by introducing microaeration".CHEMOSPHERE 208(2018):343-351.