进行了一项示范规模研究，以评估 pH值抑制和氨添加到 在消毒条件下控制溴酸盐的生成 隐孢子虫的条件。具体研究 目标包括确定季节性气候变化的影响 溴化物在一定范围内对溴酸盐生成的影响 pH值和评估溴酸盐的控制 不同的氨剂量，不同的消毒水平， 在不同的pH值下。 在两个样本水上进行了试验 碱度、溴化物和总有机物含量不同 碳虽然pH控制确实限制了溴酸盐的形成， 该策略被发现相对昂贵 因为需要大量的化学物质。作为一个 溴酸盐控制方法，氨源 特定于水，在高碱度下具有更高的成功率 与碱度较低的水相比。 此外，必须小心添加氨 与提供二次消毒的需要相平衡 用氯或氯胺。 美国西南部的许多供水商 各州依赖于本工程中测试的水源水，或 正在使用中到高溴水平的水。 这项研究提供了方向、实践指导和指导 考虑使用的公用事业公司的成本分析 臭氧或改变他们现有的臭氧实践。包括37个参考文献、表格、图表。

A demonstration-scale study was undertaken to evaluate pH suppression and ammonia addition to control bromate formation under disinfection conditions for Cryptosporidium. Specific research objectives included determining the effects of seasonal bromide changes on bromate formation over a range of pH values and assessing control of bromate over a variety of ammonia doses, at varying disinfection levels, and at different pH values. Tests were conducted on two sample waters with varying levels of alkalinity, bromide, and total organic carbon. Although pH control did limit bromate formation, the strategy was found to be relatively expensive because of the large chemical dosages required. As a bromate control method, ammonia proved source water-specific, with a higher rate of success in high-alkalinity waters than in those with lower alkalinity. Furthermore, ammonia addition must be carefully balanced with the need to provide secondary disinfection with chlorine or chloramines. Many water suppliers in the southwestern United States rely on the source waters tested in this work or are using water with moderate-to-high bromide levels. This research offers direction, practical guidance, and cost analyses for utilities that are considering using ozone or changing their existing ozone practice. Includes 37 references, tables, figures.