Synthesis and characterization of composite flocculant PAFS–CPAM for the treatment of textile dye wastewater
Article first published online: 31 OCT 2013
Copyright © 2013 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 131, Issue 7, April 5, 2014
How to Cite
2014). Synthesis and characterization of composite flocculant PAFS–CPAM for the treatment of textile dye wastewater. J. Appl. Polym. Sci. 131, 40062, doi: 10.1002/app.40062, , , , , and (
- Issue published online: 13 JAN 2014
- Article first published online: 31 OCT 2013
- Manuscript Accepted: 14 OCT 2013
- Manuscript Received: 3 AUG 2013
- National Natural Science Foundation of China. Grant Numbers: 21177164, 51078366
- structure–property relations;
- separation techniques
In this study, a new composite flocculant was prepared by premixing polymeric aluminum ferric sulfate (PAFS) with cationic polyacrylamide (CPAM) to treat textile dye wastewater. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were conducted to investigate the structure and morphology of the PAFS–CPAM. The effects of flocculant dosage, initial pH of textile dye wastewater, and settling time after flocculation on the removal of turbidity and chemical oxygen demand (COD) were examined. The flocculation efficiency of PAFS–CPAM for dye treatment was compared with PAFS, CPAM, PAFS/CPAM (PAFS followed by CPAM), and CPAM/PAFS (CPAM followed by PAFS). The synergy of PAFS and CPAM increased the (Fe–Al)b species of PAFS–CPAM. Treatment with PAFS–CPAM was more effective in removing turbidity and COD than PAFS, CPAM, PAFS/CPAM, and CPAM/PAFS. The turbidity and COD removal rates of textile wastewater were higher than 80 and 90% in the pH range of 5.5 to 8.5, respectively. Furthermore, PAFS–CPAM demonstrated excellent performance in reducing sludge volume after flocculation. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40062.