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以实验室模拟含嗅微污染水为研究对象,对比考察常规处理/浸没式超滤膜组合工艺(CUF)和常规处理-粉末炭/浸没式超滤膜组合工艺(CPUF)启动阶段的除污效能及膜污染状况。结果表明:两种组合工艺的除浊率均稳定在98%以上;CPUF工艺开始稳定去除NH+4-N的时间较CUF工艺缩短了7 d,且对UV254的去除率增加了16.3%,出水土臭素平均浓度为3.44 ng/L,远低于CUF工艺出水的18.99 ng/L。CPUF工艺能有效延缓膜污染,连续运行28 d后跨膜压差仅增长了1.49 kPa,较CUF工艺低1.78 kPa。
Taking simulated micro-polluted water containing olfactory in laboratory as research object, the decontamination of CUF and conventional treatment-powdered carbon / submerged ultrafiltration membrane combined process (CPUF) Efficiency and membrane pollution status. The results showed that the turbidity removal rates of the two combined processes all stabilized at more than 98%. The time to start stable removal of NH + 4-N from the CPUF process was 7 days shorter than that of the CUF process and the removal rate of UV254 was increased by 16.3% The average concentration of geosmin was 3.44 ng / L, much lower than 18.99 ng / L of CUF process effluent. The CPUF process can effectively delay membrane fouling. After 28 days of continuous operation, the transmembrane pressure drop increased by only 1.49 kPa and 1.78 kPa lower than that of the CUF process.