在采用三维荧光技术分析组合MBR工程系统处理北运河受污染河水过程中溶解性有机物(DOM)变化的基础上,结合膜组件运行及污染状况、系统对DOC、UVA的去除效果,进行系统对溶解性有机物的去除研究.结果表明,受污染河水DOM中主要的荧光物质有芳香族蛋白质(荧光峰A和B)及类腐殖酸(荧光峰C),其中,A峰与B峰的中心位置分别位于240/380 nm及230/340 nm;经系统处理后,荧光峰的强度降低了21%～59.8%,同时部分芳香族蛋白质的结构也发生了变化.此外,经A段、O段、和膜过滤后的COD、DOC、UVA等值均呈现逐步降低的趋势,且膜的截留作用贡献相对较大.
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