Removal of citrate and hypophosphite binary components using Fenton,
photo-Fenton and electro-Fenton processes |
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| Authors: | Yao-Hui Huang Hsiao-Ting Su and Li-Way Lin |
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| Institution: | 1. Department of Chemical Engineering, “National” Cheng Kung University, Tainan 701, Taiwan, China;2. Sustainable Environment Research Center, Tainan 701, Taiwan, China |
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| Abstract: | Both citrate and hypophosphite in aqueous solution were degraded by advanced oxidation processes (Fe2+/H2O2, UV/Fe2+/H2O2, and electrolysis/ Fe2+/H2O2) in this study. Comparison of these techniques in oxidation efficiency was undertaken. It was found that Fenton process could not degrade completely citrate in the presence of hypophosphite since it caused a series inhibition. Therefore, UV light (photo-Fenton) or electron current (electro-Fenton) was applied to improve the degradation efficiency of the Fenton process. Results showed that both photo-Fenton and electro-Fenton processes could overcome the inhibition of hypophosphite, especially the electro-Fenton. |
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| Keywords: | citrate hypophosphite wastewater advanced oxidation processes Fenton photo-Fenton electro-Fenton |
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