Advanced Oxidation Processes for Removal of Natural Organics and Pesticides from Drinking Water

by Badri N. Badriyha, (S.M.ASCE),
Massoud Pirbazari, (M.ASCE),

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


Among the technologies available to deal with the problem of pesticides in drinking water, advanced oxidation processes (AOPs) represent a treatment that has the potential of completely destroying and converting the pesticides to hanniess substances. In this study two chlorinated pesticides; namely, heptachior and alachlor were effectively oxidized by either molecular ozone or the hydroxyl free radical. Molecular ozone was found more effective in the oxidation of heptachior and its hydrolysis daughter 1-hydroxychiordene. While the hydroxyl radical, generated by accelerated decomposition of ozone by addition of hydrogen peroxide or by raising the pH, was found more effective in the case of alachlor.

Subject Headings: Pesticides | Oxidation | Water treatment | Ozone | Hydrogen peroxide | pH | Drinking water treatment | Chlorine

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