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Removal of Bromate After Ozonation by Electron Beam Irradiation

by M. Siddiqui, Univ of Colorado at Boulder,
G. Amy, Univ of Colorado at Boulder,
W. Cooper, Univ of Colorado at Boulder,
C. Kuruz, Univ of Colorado at Boulder,
T. Waite, Univ of Colorado at Boulder,



Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment

Abstract:

Drinking water regulations related to disinfection, disinfectant by-product (DBP) control, DBP precursor removal and contaminated source water pre-treatment will become increasingly stringent as the regulation/negotiation process proceeds. Of critical concern will be the development of new process that can address one or more of these critical areas. This paper discusses the use of an innovative treatment process, high energy electron beam irradiation (HEEB), in drinking water treatment to remove bromate, an ozonation disinfection by-product and total organic carbon (TOC), precursors for organic DBPs. Preliminary bench-scale and pilot-scale studies indicate that the process is capable of removing bromate and TOC. Reduction of bromate is dependent on HEEB dose, initial bromate concentration, pH of the source water and alkalinity of the influent water.

Subject Headings: Water treatment | Water pollution | Water policy | Radiation | Ozonization | Beams | pH

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