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Elimination of EDTA in Aqueous Solution by Bimetallic Fe-Cu Process

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Abstract:

Oxidative degradation of ethylenediaminetetraacetic acid in aqueous solution at normal temperature and pressure by the bimetallic Fe-Cu, which was verified by ESR spectroscopy, was investigated. The results showed that the removal efficiency of EDTA, TOC and TN could be about 99%, 60% and 39% respectively after 3h reaction. The degradation products were iminodiacetate, formate and acetate. The effects of initial pH, concentration of EDTA, Cu content and Fe-Cu loading were also investigated. Significantly, the bimetallic Fe-Cu process exhibited higher reactivity than monometallic Fe0 process for the degradation of EDTA and it would not cause new heavy metal pollution in effluent.

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Periodical:

Advanced Materials Research (Volumes 779-780)

Pages:

21-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.779-780.21

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Online since:

September 2013

Authors:

Xin Liu, Jin Hong Fan, Lu Ming Ma

Keywords:

Advanced Oxidation Process (AOP), Bimetallic Fe-Cu, EDTA, Hydroxyl Radical

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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