Influences of Carbonate and Chloride Ions on Persulfate Oxidation of Trichloroethylene at 20 degree C

The influence of various levels of chloride and carbonates on persulfate oxidation of trichloroethylene (TCE) at 20 degree C under controlled conditions in a laboratory is presented. Based on the results of the laboratory experiments, both chloride and alkalinity are shown to have scavenging effects...

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Bibliographic Details
Published inThe Science of the total environment Vol. 370; no. 2; p. 271
Main Authors Liang, Chenju, Wang, Zih-Sin, Mohanty, Nihar
Format Journal Article
LanguageEnglish
Published 01.11.2006
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Summary:The influence of various levels of chloride and carbonates on persulfate oxidation of trichloroethylene (TCE) at 20 degree C under controlled conditions in a laboratory is presented. Based on the results of the laboratory experiments, both chloride and alkalinity are shown to have scavenging effects on the rate of oxidation of TCE. It is observed that at a neutral pH, persulfate oxidation of TCE is not affected by the presence of bicarbonate/carbonate concentrations within the range of 0-9.20 mM. However, the TCE degradation rate is seen to reduce with an increase in the level of carbonate species and at elevated pHs. TCE degradation in the presence of chlorides reveals no effect on the degradation rate especially at chloride levels below 0.2 M.
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ISSN:0048-9697