Evaluation of the tratment of metal-EDTA complexes using Ti0{sub 2} photocatalysis

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This study has demonstrated the feasibility of TiO{sub 2} photocatalysis to treat EDTA and several metal-EDTA complexes that can be found in industrial wastewaters. For the EDTA complexes of metals capable of photodeposition, such as Cu and Pb, certain reaction conditions were shown to facilitate the simultaneous complex degradation and photodeposition of these metals onto the catalyst. With metals that do not easily photodeposit, such as Ni and Cd, it is shown that the complex degradation is still facilitated, and can enhance other metals removal processes after photocatalytic treatment. Because the treatment of these metal-EDTA complexes typically requires special measures, ... continued below

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8 p.

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Madden, T.; Datyte, A.K.; Prairie, M.R. & Stange, B.M. March 1, 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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This study has demonstrated the feasibility of TiO{sub 2} photocatalysis to treat EDTA and several metal-EDTA complexes that can be found in industrial wastewaters. For the EDTA complexes of metals capable of photodeposition, such as Cu and Pb, certain reaction conditions were shown to facilitate the simultaneous complex degradation and photodeposition of these metals onto the catalyst. With metals that do not easily photodeposit, such as Ni and Cd, it is shown that the complex degradation is still facilitated, and can enhance other metals removal processes after photocatalytic treatment. Because the treatment of these metal-EDTA complexes typically requires special measures, there may exist situations where TiO{sub 2} photocatalysis could actually be the preferred method of treatment. However, its use should be compared economically to other more established advanced oxidation technologies. This necessity is demonstrated in the economic comparison to ozone treatment for EDTA degradation alone, where ozone treatment appears to be the clear choice in this application.

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8 p.

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OSTI as DE96006762

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  • 1996 American Society of Mechanical Engineers international solar energy conference, San Antonio, TX (United States), 31 Mar - 3 Apr 1996

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  • Other: DE96006762
  • Report No.: SAND--96-0454C
  • Report No.: CONF-9603117--4
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 207483
  • Archival Resource Key: ark:/67531/metadc666025

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  • March 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Aug. 25, 2016, 2:39 p.m.

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Madden, T.; Datyte, A.K.; Prairie, M.R. & Stange, B.M. Evaluation of the tratment of metal-EDTA complexes using Ti0{sub 2} photocatalysis, article, March 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc666025/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.