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pac的絮凝机理是卷扫作用机理，pam的絮凝机理是电性中和机理和架桥絮凝机理。外观颜色不同 pam一般都是白色粉末状和乳液，pac一般为黄色、黄褐色、铁锈色三种颜色。用量不同 pac的用量一般是200-300ppm,也就是就是平均每升废水要用200-300mg。 More @Wikipedia

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