混凝对微滤膜处理含磷废水的影响
Huan jing ke xue= Huanjing kexue / [bian ji, Zhongguo ke xue yuan huan jing ke xue wei yuan hui "Huan jing ke xue" bian ji wei yuan hui.]（2006）
Abstract
采用直接微滤和混凝-微滤2种工艺对高浓度含磷废水进行了处理.结果表明,混凝预处理减轻了膜孔堵塞污染,改善了膜表面沉积层的存在形态,提高了膜的渗透通量;与原水直接微滤相比,混凝-微滤组合工艺改进了出水水质,磷酸盐的去除率从11.0%提高到99.7%,出水满足国家一级排放标准;经过相同方法清洗后,混凝-微滤工艺的膜通量能恢复到初始通量的90%以上,而直接微滤工艺的膜通量只能恢复到初始通量的72%.
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Key words
Coagulation,Comparative experiment,Membrane fouling,Microfiltration,Phosphorus-containing wastewater
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