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KMID : 0382420010270030107
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Korean Journal of Environmental Health Society
2001 Volume.27 No. 3 p.107 ~ p.112
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Separation of Cr(VI) from Heavy Metal Salts Mixed Solution by using Hollow Fiber Module
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Choi Dai-Ung
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Abstract
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This work reports the application of a hollow fiber module(HFM) for Cr(VI) extraction from heavy metal salts mixed solution by using microporous hydrophobic hollow fiber module.
In HFM configuration, the organic extraction used for the extraction of Cr(VI) was di-(2-ethyl hexyl) phosphoric acid(D2EHPA) diluted with n-heptane.
The study of HFM includes the influence of hydrodynamic and chemical condition, i.e., the flow rate of feed olution, the time of reactive extraction, the concentration of feed solution, and the pH of aqueous phase solutions.
Several experiments with synthetic solution of different mixed components system of Cr(VI) solutions established optimum condition to achieve a clean separaion of Cr(VI).
It was possible to separate Cr(VI) in the presence of metal salts mixed solution, such as Zn(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), and Cd(Ⅱ) using the HFM technique.
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