Arsenic(V) Removal from Aqueous Solutions by Iron(III) Loaded Chelating Resin |
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| Authors: | I. Rau A. Gonzalo M. Valiente |
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| Affiliation: | (1) Faculty of Industrial Chemistry, Department of Applied Physical Chemistry and Electrochemistry, POLITEHNICA University of Bucharest, Polizu Street 1, 78126 Bucharest, Romania;(2) Faculty of Sciences, Department of Analytical Chemistry, AUTONOMA University of Barcelona, 08193 Bellatera (Barcelona), Spain;(3) Faculty of Sciences, Department of Analytical Chemistry, AUTONOMA University of Barcelona, 08193 Bellatera (Barcelona), Spain |
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| Abstract: | A study of arsenic adsorption using iron(III) loaded chelating resin as adsorbent is presented. The experiments were carried out in batch mode by using aqueous solutions containing 1000 ppm As, and using an iron(III) loaded iminodiacetate resin (LEWATIT TP 207) with sorption capacity of 168 mg Fe/g resin. The equilibrium time for adsorption was found to be one hour under the experimental conditions used. The influence of pH was studied in the range of 0.8÷8.5. The highest arsenic adsorption was found at pH 1.7. Under these conditions the adsorption capacity for As was approximately 60 mg As/g resin. |
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