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In this paper, the natural organic polymer flocculants (RHF) is prepared by cationic modified rice husk, a kind of agricultural waste. Effects of flocculation are discussed between RHF and cationic polyacrylamide (CPAM), polymeric aluminum ferric (PAFC) with different proportion, respectively. The results indicate that RHF, with a better salt tolerance, can remove contamination in water effectively...
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