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Removal of contaminants of concern in water using advanced oxidation techniques

Coleman, Heather, Vimonses, V., Leslie, G. and Amal, R. (2007) Removal of contaminants of concern in water using advanced oxidation techniques. Water Science & Technology, 55 (12). p. 301. [Journal article]

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URL: http://dx.doi.org/10.2166/wst.2007.421

DOI: doi:10.2166/wst.2007.421

Abstract

This research involves the removal of contaminants of concern in water supplies using advanced oxidation technologies, in particular titanium dioxide photocatalysis. Photocatalysis for the removal of 1,4-dioxane and the natural (17 beta-oestradiol, oestriol) and synthetic (17 alpha-ethynyloestradiol) oestrogens in water was investigated using both UVA and solar radiation. The H2O2/UVC process, solar, UVC and UVA light alone were also investigated and the processes compared. It was found that TiO2 photocatalysis is an effective method for the degradation of the natural (17 beta-oestradiol and oestriol) and the synthetic (17 alpha-ethynyloestradiol) oestrogens in water in immobilised Degussa P25 and sol-gel spiral reactors with both UVA and solar radiation as the light source. Photocatalysis using the commercial catalyst Degussa P25 as an immobilised reactor with a UVA lamp shows the best performance. Photocatalysis was shown to completely mineralise 1,4-dioxane to CO2 in Degussa P25 suspension and sol-gel reactors using both UVA and solar radiation. The commercial catalyst Degussa P25 in suspension with UVA radiation shows the best performance. Photocatalysis is much more efficient than H2O2/UVC, UVA, UVC and solar radiation alone for all contaminants investigated.

Item Type:Journal article
Keywords:1,4-dioxaneH2O2/UVoestrogensphotolysistitanium dioxide photocatalysis
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:35708
Deposited By: Dr Heather Coleman
Deposited On:08 Sep 2016 08:13
Last Modified:08 Sep 2016 08:13

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