The Development of Cationic Polymeric Flocculants

Flocculation is one of technologies that are used in water and wastewater treatment.Flocculant is the core of the technology.Compared with inorganic flocculants,polymeric flocculants have some advantages,including economic,high efficiency,low toxicity and so on.which draw many attentions.Cationic organic polymeric flocculant can be more suitable in water treatment because of it has cationic groups that can be ionized in water.This paper introduces the synthesis and application of the cationic polymeric flocculants,including cationic polyacrylamide,modified cationic high polymer flocculants from natural high polymer,DMDAAC etc.