Studies on the nitrogen removal performance and membrane fouling characteristics of AF-MBR for mariculture wastewater treatment
WANG Fang1, LI Zhi-peng1, XU Zhong1, YOU Hong1,2, SONG Wei-long2, XIAO Song-yang3
1. School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264200, China; 2. State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China; 3. Department of Security and Environmental Protection, Department of Heilongjiang Daqing Oilfield Mining Service, Daqing 163000, China
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.
王芳, 李之鹏, 徐仲, 尤宏, 宋伟龙, 肖松阳. AF-MBR处理海水养殖废水性能及膜污染特性[J]. 中国环境科学, 2018, 38(5): 1760-1766.
WANG Fang, LI Zhi-peng, XU Zhong, YOU Hong, SONG Wei-long, XIAO Song-yang. Studies on the nitrogen removal performance and membrane fouling characteristics of AF-MBR for mariculture wastewater treatment. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(5): 1760-1766.
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