拟议的饮用水法规将规定溴酸盐离子（BrO3-）的最大污染物水平为0.01 mg/L。这项研究使用高能电子束辐照去除形成后的BrO3-，而其他控制策略则不那么有效。以溴（HOBr/OBr-）为中间体，将BrO3-还原为溴离子（Br-）。60克拉的剂量足以从100 ug/L的初始浓度降低70%的BrO3-。过氧化氢和硝酸盐等电子清除剂的存在显著降低了BrO3-的去除，而添加叔丁醇等OH自由基清除剂则不影响BrO3-的去除。这表明水电子是造成BrO3-破坏的主要原因。天然有机物的存在降低了BrO3-还原效率。水电子与水中各种溴物种的反应被用来模拟和模拟溴化物破坏的实验数据- .计算机模型预测与实验结果相当吻合。包括21个参考文献、表格和图表。

Proposed drinking water regulations will specify a maximum contaminant level of 0.01 mg/L for bromate ion (BrO3-). This study used high-energy electron-beam irradiation to remove BrO3- after formation, when other control strategies are not as effective. BrO3- was reduced to bromide ion (Br-), with bromine (HOBr/OBr-) as intermediate. A dose of 60 krads was sufficient to reduce 70 percent of BrO3- from an initial concentration of 100 ug/L. The presence of electron scavengers such as hydrogen peroxide and nitrate, significantly reduced BrO3- removal, whereas the addition of an OH radical scavenger such as t-butanol did not affect the removal of BrO3-. This indicates that aqueous electrons are mainly responsible for BrO3- destruction. The presence of natural organic matter decreased BrO3- reduction efficiency. The reaction of aqueous electrons with various bromine species in water was used to model and simulate experimental data for the destruction of BrO3-. Computer model predictions were in fairly good agreement with the experimental results. Includes 21 references, tables, figures.