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As we known, now wastewater from papermaking has been the main source of water pollution in China. Polyacrylamide is one of water treatment chemicals which have been used widely. In laboratory, we prepared a novel cationic polyacrylamide (CPAM) with acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride through dispersion polymerization in aqueous solution of ammonium sulfate. Cationic polyacrylamide...
A new-type composite flocculant, Polysilicate Aluminum Ferric-Chitosan (PSAF-CTS), was prepared using polysilicate aluminum ferric (PSAF) and Chitosan(CTS). The performance of PSAF-CTS was analyzed by testing turbidity and chrominance of papermaking wastewater, as well as removal efficiency of Cu2+, Ni2+, Zn2+, Cd2+, Cr6+ of heavy-metal wastewater. The orthogonal experiments showed that the optimal...
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