Journal of East China Normal University(Natural Sc ›› 2011, Vol. 2011 ›› Issue (2): 119-125.

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Experimental studies on removing humid acid by TiO2 photo-catalytic oxidation

WU Wei1, HU Jiang-yong2, ZHAO Ya-ping1   

  1. 1. Department of Environment Science, East China Normal University, Shanghai 200062, China; 2. Division of Environmental Science and Engineering, National University of Singapore, 117576, Singapore
  • Received:2010-03-01 Revised:2010-06-01 Online:2011-03-25 Published:2011-03-25
  • Contact: ZHAO Ya-ping

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Abstract: This study investigated the effects of different factors on removal of Humic Acid(HA), such as initial pH, mass concentration of catalyst, initial mass of HA, etc. The combination of SEC and LC-OCD analysis showed that the large HA molecular was converted into acids of small molecular gradually during degradation process. By simulating the disinfection process, the paper demonstrated the photo-catalytic system could not only remove the color of HA but also diminish the formation potential of DBPs effectively.

Key words: humic acid, degradation process, DBPs, TiO2, humic acid, degradation process, DBPs

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