新成立的美国环境保护署 （美国环保局）环境中砷的最高污染水平 饮用水（10微克/升）需要大量水 公用设施，尤其是小型系统，用于添加单元操作 用于除砷。这产生了直接的影响 需要找到经济高效的方法来移除 砷最近一项关于中国地下水的研究 科罗拉多州农村地区探索使用改良混凝/过滤 （MCF）作为一种除砷技术。 MCF已被美国环保局指定为最佳可用 治疗然而，之前的许多测试 使用这种方法去除砷已经被仔细使用 准备好的溶液。本研究的目的是确定 MCF的运行条件和局限性 去除地下水中的砷。这个 然后比较科罗拉多研究的结果 根据早期调查得出的预测 使用精心准备的溶液。这些研究 研究结果为越来越多的证据提供了证据 铁离子凝固，然后过滤（或 砂滤或微滤）是一种经济有效的方法 用于除砷。包括26个参考文献、表格和图表。

The new US Environmental Protection Agency (USEPA) maximum contaminant level for arsenic in drinking water (10 ug/L) will require many water utilities, especially small systems, to add unit operations for arsenic removal. This has created an immediate need to find cost-effective methods for removing arsenic. A recent study conducted on groundwater in rural Colorado explored using modified coagulation/filtration (MCF) as an arsenic removal technique. MCF has been designated by USEPA as a best available treatment. However, many previous tests for arsenic removal using this method have used carefully prepared solutions. The aim of this study was to determine the operating conditions and limitations of MCF for removing arsenic from real groundwater. The results from the Colorado study were then compared with the predictions obtained from earlier investigations using carefully prepared solutions. These study results add to a growing body of evidence that suggests ferric ion coagulation followed by filtration (either sand or microfiltration) can be a cost-effective method for arsenic removal. Includes 26 references, tables, figures.