溴酸根离子（BrO3 -)这是一种消毒方法 当 含溴离子原水 （Br-）被臭氧氧化。BrO3-是一个问题 因为它已经被分类了 作为第二类致癌物，美国 环境保护局已经成立 最大污染物水平（MCL） 10微克/升，适用于成品水中。 本研究评估了亚硫酸盐离子（SO3 2-) 以及还原铁（Fe2+）作为潜在的去除 BrO3试剂——pH值范围很宽。这个 BrO3-去除的实验速率定律 使用SO3 2-表明去除率 随着pH值的增加而减少 三氧化二铁去除率定律+ 表明去除率随着时间的推移而增加 增加pH值。 研究发现，在饮用水 条件，SO3 2-不是有效的BrO3- 去除剂。然而，在饮用水方面 pH值（pH值大于7）时，Fe2+是一种很好的BrO3还原剂 代理人BrO3的扩展速率定律- 使用Fe2+去除预测pH值为8时， 100微克/升BrO3-在2分钟内被移除 研究还发现，使用酸洗铁作为 Fe2+的来源具有提供 额外的铁离子用于絮凝。 （Fe2+是在酸洗过程中产生的 当使用浓盐酸时 用于清洁钢板表面。） 关于BrO3的最新策略- 解决防止其形成的问题。 这项研究表明 移除BrO3-允许水设施 来源中的溴浓度较高 水在高浓度下使用更强的氧化剂 在不超过3分的情况下- 10微克/升的MCL。化学去除 使用Fe2+的工艺也具有优势 没有那么复杂或昂贵 当前的替代技术。包括30个参考文献、表格和图表。

Bromate ion (BrO3 -) is a disinfection byproduct that is produced when raw water containing bromide ion (Br-) is ozonated. BrO3- is a concern for water utilities because it has been classified as a class II carcinogen, and the US Environmental Protection Agency has established a maximum contaminant level (MCL) of 10 ug/L for it in finished water. This study evaluated sulfite ion (SO3 2-) and reduced iron (Fe2+) as potential removal agents for BrO3- over a wide pH range. The experimental rate law for BrO3- removal using SO3 2- shows that the rate of removal decreases with increasing pH. The experimental rate law for BrO3- removal using Fe2+ shows that the rate of removal increases with increasing pH. The study found that under drinking water conditions, SO3 2- is not an effective BrO3- removal agent. However, at drinking water pH (pH > 7), Fe2+ is a good BrO3- reducing agent. The expanded rate law for BrO3- removal using Fe2+ predicts that at pH 8, 100 ug/L BrO3- is removed in 2 min. The study also found that the use of pickling Fe as the source of Fe2+ has the advantage of providing additional ferric ion for flocculation. (Fe2+ is produced during the pickling of steel, when concentrated hydrochloric acid is used to clean the surface of a sheet of steel.) Most current strategies regarding BrO3- address the prevention of its formation. This study shows that the capability to remove BrO3- permits water utilities that have high Br- concentrations in their source water to use stronger oxidants in high concentrations without exceeding the BrO3- MCL of 10 ug/L. The chemical removal process using Fe2+ also has the advantages of not being as complicated or expensive as current alternative technologies. Includes 30 references, tables, figures.