title: Synthesis of a novel magnetic polyacrylamide coagulant and its application in wastewater purification.
abstract: In this study, a novel magnetic polyacrylamide (PAM) coagulant based on the core of magnetite (Fe3O4), with oleic acid serving as modifier and acrylamide as monomer, was synthesized to remove suspended solids in kaolin-suspended water. The composites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermo gravimetric analysis and scanning electron microscopy. The results demonstrated that 82.8% of turbidity removal rate was obtained in 5 min of static settling in simulated kaolin-suspended water. This proved to be superior to that of PAM and poly aluminum chloride. Also confirmed in this study was the fact that zeta potential was significantly correlated with turbidity removal.
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu Province 221116, China E-mail: klsaq2003@163.com; School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, Jiangsu Province 222005, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu Province 221116, China E-mail: klsaq2003@163.com.
authors.forename: Aiqin
authors.initials: A
authors.lastname: Shan
authors.affiliation: School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, Jiangsu Province 222005, China.
authors.forename: Yuxia
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D000180:Acrylic Resins / Q000138:chemical synthesis / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000138:chemical synthesis / Q000737:chemistry*; D005427:Flocculation; D007616:Kaolin / Q000032:analysis*; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013818:Thermogravimetry; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D052203:Ferrosoferric Oxide; D007616:Kaolin; D062065:Wastewater; D014874:Water Pollutants, Chemical; D000099166:Polyacrylamides