Research on UV/TiO₂ Photocatalytic Oxidation of Organic Matter in Drinking Water and its Influencing Factors

Abstract:

UV/TiO₂ photocatalytic of filtrated water are conducted in S waterworks which take Yangtze River as its source water in Nanjing. Self-made glass supported nano-TiO₂ film and photocatalytic reactor are used for the experiment. Results show that TOC removal efficiency can reached 45% -63% within 2h-3h, Organic matter removal efficiency is positively related with the • OH generated in photocatalytic process. The influence factors on TOC removal efficiency follows the sequence: light intensity, dissloved oxygen, reaction time and pH. Changes of UV absorption characteristics in photocatalytic process indicate that the saturation of organic matter increase significantly, this is conductive to control the risk taken by disinfection by-products. Results proved that UV/TiO₂ photocatalytic is a promising technology for the removal of organic pollutants in drinking water, it can improved the chemical safety of drinking water.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 2358-2362
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.2358
• Online since: July 2014
• Authors: Jin Hui Zhao*
• Keywords: Drinking Water, Organic Matter, Photocatalysis, Removal Efficiency

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