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混凝沉淀-生物粉末炭/超滤组合工艺处理含嗅味微污染水研究

Keywords: 混凝沉淀,超滤,生物粉末活性炭,含嗅味微污染水,跨膜压差

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Abstract:

针对富营养化湖库水普遍存在的藻类、有机物污染及嗅味问题,以实验室模拟的含嗅味微污染水为试验水样,研究了混凝沉淀-生物粉末活性炭/浸没式超滤(BPAC/SUF)组合工艺对叶绿素a、有机物和嗅味污染物的去除效果及对膜污染的影响,探讨一种有效的含嗅味微污染水处理技术.结果表明,混凝沉淀-BPAC/SUF组合工艺对叶绿素a的去除效果显著,平均去除率达95.5%;组合工艺可强化有机物的去除效果,对UV254、DOC和CODMn的平均去除率分别为31.0%,30.4%和51.0%;对二甲基异冰片(2-MIB)和土臭素(GSM)有较好的去除效果,平均去除率为74.8%和75.1%,出水平均浓度均在嗅阈值以下;整个实验期间,跨膜压差仅增长了3.80kPa,膜污染得到很好的缓解.

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