Ozonation by-products of humic acid in the presence of hydrogen peroxide

Hyun Sang Shin, Dong Seok Rhee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

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.

Original languageEnglish
Title of host publicationMaterials, Transportation and Environmental Engineering II
EditorsJimmy C.M. Kao, Wen-Pei Sung, Ran Chen
PublisherTrans Tech Publications Ltd
Pages134-137
Number of pages4
ISBN (Electronic)9783038352488
DOIs
StatePublished - 2014
Event2nd International Conference on Materials, Transportation and Environmental Engineering, CMTEE 2014 - Kunming, China
Duration: 30 Jul 201431 Jul 2014

Publication series

NameAdvanced Materials Research
Volume1030-1032
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference2nd International Conference on Materials, Transportation and Environmental Engineering, CMTEE 2014
Country/TerritoryChina
CityKunming
Period30/07/1431/07/14

Keywords

  • By-Products
  • Formaldehyde
  • Humic Acid
  • Hydrogen peroxide
  • Ozonation

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