Abstract
In this study, regenerated cellulose membrane was used as a filter in liquid-phase polymer-based retention technique. The poly(4-vinyl-1-methylpyridinium bromide), P(BrVMP), was used as extracting reagent of As(V). The role of pH, polymer:As(V) molar ratio, and influence of regenerated cellulose membrane were investigated by washing method. It was observed that the efficient retention was obtained at pH 9 with 20:1 polymer:As molar ratio and it was about 100 % at Z = 10 for P(BrVMP). Experimental data showed that the regenerated cellulose membrane, compared to poly(ethersulfone) membrane, has a capacity to interact with As(V). The maximum retention capacity of P(BrVMP) was determined by enrichment method, and then, using alternately washing and enrichment methods, the charge–discharge process and recovery of P(BrVMP) were performed.
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Acknowledgments
The authors thank to 7FP-MC Actions Grant so-called CHILTURPOL2 (PIRSES-GA-2009 Project, Grant Number: 269153) for a fellowship to Dr. A. Bastrzyk to do research at University of Concepcion, Chile. The authors are also grateful for Grants FONDECYT (No 1110079) and PIA (Grant Anillo ACT 130) for financial support. Julio Sánchez thanks also FONDECYT (postdoctoral Grant No 3120048) and CIPA.
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Sánchez, J., Bastrzyk, A., Rivas, B.L. et al. Removal of As(V) using liquid-phase polymer-based retention (LPR) technique with regenerated cellulose membrane as a filter. Polym. Bull. 70, 2633–2644 (2013). https://doi.org/10.1007/s00289-013-0979-z
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DOI: https://doi.org/10.1007/s00289-013-0979-z