Destruction of humic acid in water by UV light - Catalyzed oxidation with hydrogen peroxide

Gen Shuh Wang, Su Ting Hsieh, Chia Swee Hong

Research output: Contribution to journalArticlepeer-review

150 Citations (Scopus)


A batch reactor was used to evaluate the advanced oxidation process of the UV/H2O2 system for control of natural organic matter (NOM) in drinking water. The light sources used include a 450 W high-pressure mercury vapor lamp and sunlight. Both quartz and Pyrex filters were used to control the wavelength and energy of UV light applied to the aqueous systems. The results showed that NOM oxidation and H2O2 decomposition followed first-order and zero-order reaction kinetics, respectively. The optimum H2O2 dose was found to be 0.01% for the oxidation of humic acids in this study. Carbonate and bicarbonate ions inhibited the degradation of humic acids.

Original languageEnglish
Pages (from-to)3882-3887
Number of pages6
JournalWater Research
Issue number15
Publication statusPublished - 2000 Oct 15

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Ecological Modelling
  • Pollution
  • Waste Management and Disposal
  • Environmental Engineering
  • Civil and Structural Engineering


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