这两个阶段的研究调查了铁（铁）凝固 然后直接进行微滤（CMF）作为 一种去除水中砷的处理方法 新墨西哥州阿尔伯克基市第一阶段的地下水， 进行了台架试验，以确定 As氧化状态、pH值、铁剂量、二氧化硅浓度的影响， 混合时间和过滤器孔径对砷的去除有影响。 第二阶段包括一项初步研究，以进行调查 pH值、铁剂量、混合时间和温度等变量 能量、滤液流量和反洗间隔。 最重要的控制变量是移除 分别测定pH和Fe剂量。当去除量小于2？g/L时 使用7 mg/L铁剂量实现，无需刻意 pH值降低或添加1.9 mg/L Fe后的较小剂量 使用硫酸将pH值降至6.4。不断的 CMF中试规模流程的三到五天运行 验证了高效的过滤器性能，并且没有显示出 跨膜压力增加，即使在五天后。 CMF代表了一种创新的治疗技术 用于去除地下水中的砷。 通过消除 在絮凝步骤中，该过程提供水 供应商节省了空间和成本。设计为 CMF结构紧凑，特别适用于小型系统或 空间受限的大型系统。包括25个参考文献、表格和图表。

This two-phase study investigated iron (Fe) coagulation followed directly by microfiltration (CMF) as a treatment for removing arsenic (As) from groundwater in Albuquerque, N.M. In the first phase, bench-scale tests were conducted to determine the effect of As oxidation state, pH, Fe dose, silica concentration, mixing time, and filter pore size on As removal. The second phase consisted of a pilot study to investigate such variables as pH, Fe dose, mixing time and energy, filtrate flux, and backwash interval. The most important variables controlling As removal were pH and Fe dose. As removals to <2 ¿¿g/L were achieved using either a 7 mg/L Fe dose without deliberate pH reduction or a smaller dose of 1.9 mg/L Fe after addition of sulfuric acid to reduce pH to 6.4. Continuous three- to five-day operation of the CMF pilot-scale process verified efficient filter performance and showed no increase in transmembrane pressure, even after five days. CMF represents an innovative treatment technology for removing arsenic (As) from groundwater. By eliminating the flocculation step, the process offers water providers savings in both space and cost. Designed to be compact, CMF is especially useful for smaller systems or larger systems where space is a constraint. Includes 25 references, table, figures.