中文关键词缺氧污泥微藻膜生物反应器海水养殖废水膜污染 英文关键词anoxic sludgemicroalgaemembrane bioreactormariculture wastewatermembrane fouling

作者	单位	E-mail
陈凡雨	哈尔滨工业大学(威海)海洋科学与技术学院环境工程系, 威海 264200	992311467@qq.com
徐仲	哈尔滨工业大学(威海)海洋科学与技术学院环境工程系, 威海 264200
尤宏	哈尔滨工业大学(威海)海洋科学与技术学院环境工程系, 威海 264200 哈尔滨工业大学环境学院环境科学与工程系, 城市水资源与水环境国家重点实验室, 哈尔滨 150090
柳锋	哈尔滨工业大学(威海)海洋科学与技术学院环境工程系, 威海 264200
李之鹏	哈尔滨工业大学(威海)海洋科学与技术学院环境工程系, 威海 264200	lizhipengcn@hit.edu.cn
陈其伟	泛华建设集团有限公司湖南分公司, 长沙 410000
韩红卫	济南市环境监控中心, 济南 250102

中文摘要 采用普通小球藻（C.vulgaris）作为实验藻种，搭建缺氧MBR-微藻膜反应器（缺氧MBR-MMR）耦合系统处理海水养殖废水，前置缺氧MBR用于有机物、NO₃^--N和NO₂^--N的降解，释放的NH₄⁺-N进入MMR用于微藻生长而得到去除，考察协同处理效能和微藻采收情况，探究膜污染行为.反应系统共运行91 d，对NO₃^--N和NH₄⁺-N的去除率分别达到90.0%和88.0%以上，对PO₄^3--P和TOC的平均去除率分别为49.4%和84.7%.普通小球藻在进行连续采收的情况下，能以平均浓度为9×10⁷个·mL^-1的生物量稳定运行，实现了较好的去除效能和资源化利用.通过红外光谱和三维荧光光谱分析，MMR内造成膜污染的主要物质是色氨酸类蛋白质和腐殖酸类物质，与缺氧MBR内膜组件相比污染较轻. 英文摘要 An anoxic membrane bioreactor-microalgae membrane reactor coupling system (anoxic MBR-MMR) was used to deal with mariculture wastewater. Pre-anoxic MBR was used for the degradation of organic matter, NO₃^--N and NO₂^--N, and the released NH₄⁺-N entered MMR for microalgae growth and was removed. Meanwhile, the treatment efficiency and the microalgae recovery were studied, and the membrane fouling behavior was investigated. After running for 91 days, the removal rates of the system toward NO₃^--N and NH₄⁺-N were stable at above 90.0% and 88.0%, respectively. Furthermore, the average removal rates of PO₄^3--P and TOC were 49.4% and 84.7%, respectively. Under the condition that the microalgae were harvested continuously, the biomass can be stably operated at an average concentration of 9×10⁷ cells·mL^-1 and good removal efficiency and resource utilization could be achieved. Through infrared spectrum and three-dimensional fluorescence spectrum analysis, the main substances causing membrane fouling in MMR were tryptophan proteins and humic acids. The membrane fouling in MMR was lighter than that in anoxic MBR.

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