Comparison of degradation reactions of Acid Yellow 61 in both oxidation processes of H_2O_2/UV and O_3

Article type: Research Article

Authors: Wang, Yi-zhong | Yedeler, A. | Kettrup, A.

Affiliations: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China | GSF-Institute of Ecological Chemistry, Neuherberg, Postfach 1129, 85758 Neuherberg, Germany

Abstract: The comparison of degradation of Acid Yellow 61 as a model dye compound in both oxidation processes of H_2O_2/UV and O_3 has been studied. When the decolorization rate of Acid Yellow 61 in both reactions presented similar, it was found there are some differences from the results of AOX removal and production of inorganic ions and organic acids. The results reveal that the H_2O_2/UV has beneficial effect on mineralization than O_3 only for degradation of Acid Yellow 61 solution and it is possible for enhancement of method efficiency by taking longer reaction time and addition of high concentration of oxidants.

Keywords: oxidation process, H_2O_2/UV, O_3, dye compound

Journal: Journal of Environmental Sciences, vol. 13, no. 3, pp. 304-310, 2001