Ozonation by-Products of Humic Acid in the Presence of Hydrogen Peroxide

Hyun Sang Shin; Dong Seok Rhee

doi:10.4028/www.scientific.net/AMR.1030-1032.134

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1030-1032Ozonation by-Products of Humic Acid in the...

Ozonation by-Products of Humic Acid in the Presence of Hydrogen Peroxide

Abstract:

Ozonation of humic acid has been conducted in the presence of hydrogen peroxide as catalyst. Besides the study of total organic carbon removal in the ozonation, ozonation by-products were investigated through the change of injected concentration of H₂O₂, initial pH of aqueous humic acid and injection time of H₂O₂. The variation of hydrogen peroxide and formaldehyde contents in the processes are mainly evaluated. The formaldehyde was formed less in ozonation with hydrogen peroxide system than without it. When initial pH in solution was changed from 3.5 to 10.5, the formaldehyde was formed with the highest concentration at pH 5. In addition, the concentration of H₂O₂ produced by ozonation was found to be increased with decreasing pH of the sample solution in this process.

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Periodical:

Advanced Materials Research (Volumes 1030-1032)

Pages:

134-137

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.134

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Online since:

September 2014

Authors:

Hyun Sang Shin*, Dong Seok Rhee

Keywords:

By-Products, Formaldehyde, Humic Acid (HA), Hydrogen Peroxide, Ozonation

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