In acidic or alkaline media are positive, it is usually lower than anionic or non-ionic polyacrylamide molecular weight, its cleaning sewage performance is mainly through charge neutralization. The function of this kind of flocculant is mainly flocculating with a negative charge, with turbidity removal, decolorization function. In liquor factory, gourmet drinks factory, sugar factory, meat products factory, beverage factory, printing and dyeing factory wastewater treatment wi...