2001年10月，美国环境保护局 保护局决定搬家 推进10年计划的实施- ug/L中砷（As）的标准 饮用水。鉴于这一点更加严格 作为标准，供水设施，尤其是 较小的处理系统，需要更新 关于现有治疗能力的信息 要从中删除的技术 饮用水。进行了一项为期一年的研究 在两个离子交换（IX）和两个 活性氧化铝（AA）水处理 在新英格兰的工厂评估性能 在这些全尺寸系统中 不断地从原水中去除砷。 水源水中含有34-87 ug/L的 总砷，主要由砷（V）组成， 除了一个系统，其中0。 3-28.8 测定As（III）的微克/升。取样 这些真实情况的结果 表示IX和AA系统可以 在处理过的水中去除< 5 ug/L， 但前提是IX树脂得到适当再生 AA媒体在一个星期内被更换了 及时地。 IX和AA工艺为水供应商提供 操作简便，操作成本低 以及维护费用。用于小型水处理 设施和进入点工厂 代表会议的两个吸引人的选择 即将出台的监管的挑战 要求。包括43个参考文献、表格和图表。

In October 2001, the US Environmental Protection Agency decided to move forward with implementation of a 10- ug/L standard for arsenic (As) in drinking water. Given this more stringent As standard, water facilities, especially smaller treatment systems, need up-to-date information on the ability of existing treatment technologies to remove As from drinking water. A yearlong study was conducted at two ion-exchange (IX) and two activated alumina (AA) water treatment plants in New England to evaluate the performance of these full-scale systems for consistently removing As from raw water. The source water contained 34-87 ug/L of total As, consisting primarily of As(V), except for one system in which 0.3-28.8 ug/L of As(III) was measured. Sampling results from these real-world conditions indicated the IX and AA systems could remove As to < 5 ug/L in the treated water, but only if IX resins were properly regenerated and AA media were changed out in a timely manner. IX and AA processes offer water suppliers ease of operation as well as low operations and maintenance costs. For small water treatment facilities and point-of-entry plants, they represent two appealing options for meeting the challenges of upcoming regulation requirements. Includes 43 references, tables, figures.