AF-MBR处理海水养殖废水性能及膜污染特性

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Abstract In order to investigate the pollutants removal efficiencies for the anoxic-filter membrane bioreactor (AF-MBR) treating mariculture wastewater, polyurethane suspended filler was added into the membrane bioreactor in contrast with a single membrane bioreactor. The total nitrogen and TOC removal efficiencies in AF-MBR reached 92% and 90%, respectively, which were higher than 86% and 85% in control-MBR, respectively. In addition, the prepositioned anoxic-filter and the added fillers significantly alleviated the membrane fouling. The soluble microbial products (SMP) and extracellular polymers (EPS) extracted from two reactors were analyzed by the infrared spectrum and three-dimensional fluorescence spectra, and protein and polysaccharide were the main membrane foulants. Moreover, the reduction of membrane foulants mitigated the membrane fouling.

Key words： membrane bioreactor removal rate membrane fouling soluble microbial products (SMP) extracellular polymers (EPS)

Received: 22 September 2017

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	Articles by authors
	WANG Fang
	LI Zhi-peng
	XU Zhong
	YOU Hong
	SONG Wei-long
	XIAO Song-yang

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WANG Fang,LI Zhi-peng,XU Zhong等. Studies on the nitrogen removal performance and membrane fouling characteristics of AF-MBR for mariculture wastewater treatment[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(5): 1760-1766.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I5/1760

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