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Destruction of EDTA by Bimetallic Al-Fe/O2 Process under Aqueous Room Temperature and Pressure Conditions

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Abstract:

Oxidative degradation of ethylenediaminetetraacetic acid (EDTA) in aqueous solution at room temperature and pressure by the bimetallic Al-Fe/O2 process, which was verified by the addition of benzoic acid as ·OH scavenger and the detection of para-hydroxybenzoic acid, was investigated. The results showed that the removal efficiency of EDTA, TOC and TN could be about 98%, 77.5% and 43% respectively after 3h reaction when the initial pH was 5. The effects of initial pH, concentration of EDTA, mass ratio of Al0 and Fe0 and Al-Fe loading were also investigated. Significantly, the bimetallic Al-Fe process exhibited higher reactivity than monometallic Fe0/Al0 process for the degradation of EDTA when the mass ratio of Al0 and Fe0 ranged from 0.11 to 2.97.

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Periodical:

Advanced Materials Research (Volume 800)

Pages:

555-559

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.800.555

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Online since:

September 2013

Authors:

Xin Liu, Jin Hong Fan, Lu Ming Ma

Keywords:

Advanced Oxidation Process (AOP), Bimetallic Al-Fe, EDTA, Fenton Reaction

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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