volume 40, issue 18, P3343-3348 2006
DOI: 10.1016/j.watres.2006.07.032
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Ron Hofmann, Robert C. Andrews

Abstract: Ammonia can be used to minimize bromate concentrations by blocking two of three potential bromate formation pathways. It was theorized that (bi)carbonate alkalinity in the presence of ammonia would inhibit bromate formation since the pathway that ammonia does not block requires hydroxyl radicals (OH()), and (bi)carbonate alkalinity is an OH() scavenger. Experiments where (bi)carbonate alkalinity was increased from 50 to 119 mg/L (as CaCO(3)) in the presence of excess ammonia resulted in up to 50% reduction in …

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