【摘要】 为了考察缺氧滤池-膜生物反应器(AF-MBR)对海水养殖废水的处理效果,在膜生物反应器中投加聚氨酯悬浮性填料,并以独立运行的膜生物反应器作为对照.结果表明,组合反应系统的总氮去除率和总有机碳(TOC)去除率分别为92%和90%,高于对照膜生物反应器的86%和85%.并且,前置缺氧滤池和填料的投加也明显缓解了膜污染.通过对两个反应器提取的溶解性微生物产物(SMP)和细胞胞外聚合物(EPS)进行红外光谱和三维荧光光谱的测定,确定了蛋白质和多糖为主要的膜污染物质,并且膜污染物质的减少缓解了膜污染现象.更多还原

【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.更多还原