alexa A Novel Flocculant of Poly Aluminum Silicate Sulfate-Polyacrylamide Hybrid
ISSN: 2157-7048

Journal of Chemical Engineering & Process Technology
Open Access

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Research Article

A Novel Flocculant of Poly Aluminum Silicate Sulfate-Polyacrylamide Hybrid

Li zhe, Chang dingwei and Wu wenjie*
College of Chemical Engineering and Material, Tianjin University of Science and Technology, Tianjin, PR China
Corresponding Author : Wu wenjie
College of Chemical Engineering and Material
Tianjin University of Science and Technology
Tianjin 300457, PR China
Tel: 804943456
E-mail: [email protected]
Received September 14, 2015; Accepted September 21, 2015; Published September 30, 2015
Citation: zhe L, dingwei C, wenjie W (2015) A Novel Flocculant of Poly Aluminum Silicate Sulfate-Polyacrylamide Hybrid. J Chem Eng Process Technol 6:246. doi:10.4172/2157-7048.1000246
Copyright: © 2015 zhe L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

A novel flocculant based on polyacrylamide-poly aluminum silicate sulfate (PAM-PASS) has been synthesized using a redox initiation system ((NH4)2S2O8–NaHSO3) at 40℃ in aqueous medium. In this paper, the influence of the concentration of acrylamide, the mole ratio of aluminum to silicon, and pH value on the activation of silicate, which was prepared with the sodium silicate with the modulus of 3.3, was investigated. The results showed that the optimal process conditions for preparing PAM-PASS were as follows: silica concentration of 7%, aluminum silicon ratio of 3:1, and pH value of 3.0, acrylamide mass fraction of 20.7% of total material, aluminum hydroxide accounted for 7.5% of total material quality score with ammonium persulfate and sodium bisulfite as initiator, reaction temperature 40℃, PAM - PASS the synthesis of 3 hours. The PAM-PASS was prepared at the optimal conditions mentioned above and used for the treatment of waste water. The rates of turbidity and color removal were 99.6% and 98.2%. Place the PAM - PASS in the air for 100 days the rate of deturbidity in a more than 90%. Respectively, when the dosage of PAM-PASS was 15 mg/L. The PAM-PASS was characterized by viscometer, IR spectroscopy, TEM, SEM, conductivity, and TGA. It was found that an ionic bond exists between Al colloid and polyacrylamide (PAM) chains in the PAM-PASS; Silicon and aluminum form the amorphous polymer and the flocculation efficiency of PAM-PASS is much better than that of commercial polyacrylamide (PAM) and PASS.

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