Synthesis and Characterization of Ampholytic Flocculant CPCTS-g-P (CTA-DMDAAC) and Its Flocculation Properties for Microcystis Aeruginosa Removal
作者： Lei Chen , Cuiyun Liu , Yongjun Sun , Wenquan Sun , Yanhua Xu
DOI: 10.3390/PR6050054
关键词:
摘要: The ampholytic chitosan based flocculant carboxylated graft-(3-chloro-2-hydroxypropyl) trimethylammonium chloride-dimethyl diallyl ammonium chloride (CPCTS-g-P (CTA-DMDAAC)) was synthesized by photo polymerization using (CPCTS), 3-chloro-2-chloropropyltrimethylammonium (CTA) and dimethyldiallylammonium (DMDAAC) as the cationic co-monomers. effects of monomer concentration, ratio CPCTS monomers, degree, initiator time, photoinitiator pH value on properties CPCTS-g-P (CTA-DMDAAC) were studied. microcystis aeruginosa that cultured in laboratory used for flocculation tests. dosage, G performance investigated. maximum removal rate chlorophyll-a (Chl-a) chemical oxygen demand (COD) obtained 98.8% 96.5% under conditions dosage 4 mg/L, 7 200 s−1, respectively. experiments showed chitosan-based had better than commercially available flocculants polyacrylamide (CPAM), Polyferric Sulfate (PFS), polymeric aluminium (PAC).
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