Due to the increased anthropological impacts on the environment, a growing number of organic contaminants are finding their way into the water cycle. Advance oxidation processes (AOPs) serve as an effective means to remove organic contaminants by using radicals to oxidize contaminants into benign species. In this study, the kinetics of the radical-based removal of synthetic musks, phthalates, and nitrosamines by sulfate, dichloride, and nitrate radicals were studied through direct measurement. For the sulfate radical the synthetic musks were found to have a rate constant between 106 M−1s−1 to 108 M−1s−1, while phthalates were slightly faster at 108 M−1s−1 to 109 M−1s−1. For the phthalates in general no significant reaction with the dichloride radical anion was found. Possibilities for this lack of reaction between the phthalates and the dichloride radical anion were proposed. For the nitrate radical the nitrosamines were found to have a rate constant around 108 M-1s-1. Utilizing the measured rate constants, radical-reaction mechanisms are proposed based off the observed trend between similar chemical structures.
|Advisor:||Mezyk, Stephen P.|
|Commitee:||Brazier, Christopher, Tian, Fangyuan|
|School:||California State University, Long Beach|
|Department:||Chemistry and Biochemistry|
|School Location:||United States -- California|
|Source:||MAI 81/1(E), Masters Abstracts International|
|Subjects:||Chemistry, Environmental science|
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