Effects of polyurethane foam carrier addition on anoxic/aerobic membrane bioreactor (A/O-MBR) for coal gasification wastewater (CGW) treatment: Performance and microbial community structure

doi:10.1016/j.scitotenv.2021.148037

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	Effects of polyurethane foam carrier addition on anoxic/aerobic membrane bioreactor (A/O-MBR) for coal gasification wastewater (CGW) treatment: Performance and microbial community structure
	Chen, Zhiqiang 1,2; Li, Da 1; Liu, Hongguo 1; Wen, Qinxue 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-10-01
卷号	789
关键词	Coal gasification wastewater A O-MBR Polyurethane foam Membrane fouling Microbial community structure
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.148037
英文摘要	Coal gasification wastewater (CGW) is a typical toxic and refractory industrial wastewater with abundant phenols contained. Two identical anoxic/aerobic membrane bioreactors (with (R2) and without (R1) polyurethane (PU) foam) were carried out in parallel to investigate the role of PU foam addition in enhancing pollutants removal in CGW. Results showed that both systems exhibited effective removal of chemical oxygen demand (>93%) and total phenols (>97%) but poor ammonia nitrogen removal (<35%) constrained by ammonia oxidation process. GC-MS analysis revealed that aromatic and other refractory intermediates were dramatically reduced in R2. Moreover, the PU addition had negligible influence on the total soluble microbial products and extracellular polymeric substances contents but significantly alleviated membrane fouling with the operating time 33% prolonged. Microbial community revealed that Flavobacterium, Holophaga, and Geobacter were enriched on PU. Influent type might be a main driver for microbial community succession. (c) 2021 Published by Elsevier B.V.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000677550800009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148786]
专题	兰州理工大学
作者单位	1.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhiqiang,Li, Da,Liu, Hongguo,et al. Effects of polyurethane foam carrier addition on anoxic/aerobic membrane bioreactor (A/O-MBR) for coal gasification wastewater (CGW) treatment: Performance and microbial community structure[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,789.
APA	Chen, Zhiqiang,Li, Da,Liu, Hongguo,&Wen, Qinxue.(2021).Effects of polyurethane foam carrier addition on anoxic/aerobic membrane bioreactor (A/O-MBR) for coal gasification wastewater (CGW) treatment: Performance and microbial community structure.SCIENCE OF THE TOTAL ENVIRONMENT,789.
MLA	Chen, Zhiqiang,et al."Effects of polyurethane foam carrier addition on anoxic/aerobic membrane bioreactor (A/O-MBR) for coal gasification wastewater (CGW) treatment: Performance and microbial community structure".SCIENCE OF THE TOTAL ENVIRONMENT 789(2021).