壳聚糖季铵盐在混凝-微滤工艺中的应用研究
Industrial Water Treatment(2020)
Abstract
通过3-氯-2-羟丙基三甲基氯化铵(CTA)改性壳聚糖(CS)制备壳聚糖季铵盐(CS-CTA),并将其应用在混凝-微滤工艺中来研究其对出水水质和膜污染的影响.结果表明,在CS-CTA投加量为4 mg/L时,出水水质最好,此时UV254去除率为81.8%,浊度去除率为99%以上;在CS-CTA投加量为3 mg/L时,混凝出水引起的不可逆膜阻力最小,膜通量最高;与PAC相比,CS-CTA作为混凝剂能更有效地减缓膜污染.
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