Extraction of Arsenic(V) from Water Using Emulsion Liquid Membrane |
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| Authors: | S M Mousavi S Kiani M Razavi Farmad A Hemati B Abbasi |
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| Institution: | 1. Department of Chemical Engineering, Faculty of Engineering , Ferdowsi University of Mashhad , Mashhad, Iran mmousavi@um.ac.ir;3. Department of Chemical Engineering, Faculty of Engineering , Ferdowsi University of Mashhad , Mashhad, Iran;4. Membrane Processes and Membrane Research Center, Department of Chemical Engineering, Faculty of Engineering , Ferdowsi University of Mashhad , Mashhad, Iran;5. Membrane Processes and Membrane Research Center, Department of Chemical Engineering, Faculty of Engineering , Ferdowsi University of Mashhad , Mashhad, Iran;6. Department of Chemical Engineering , Quchan Azad University , Quchan, Iran;7. Khorasan Research Institute for Food Science and Technology , Mashhad, Iran |
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| Abstract: | In this article, the extraction of arsenic(V) from water by means of emulsion liquid membrane is investigated. The influence of operating factors such as stirring speed, concentration of sulfuric acid in the external aqueous phase, concentration of sodium sulfate in internal stripping phase, and concentration of carrier in the membrane phase on the extraction efficiency are investigated and their optimum values, which provide the maximum recovery of arsenic, are determined. Taguchi experimental design is used in order to reduce the number of experiments. The optimum amounts for the extraction of arsenic from water, based on the results, are: stirring speed, 500 rpm; concentration of sulfuric acid in the feed, 1.5 g mol/lit; concentration of reagent in internal phase, 1.5 g mol/lit; and concentration of carrier in 3 ml kerosene which is added to the membrane phase, 0.1 g mol/lit. |
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| Keywords: | Arsenic emulsion liquid membrane extraction Taguchi water |
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