进行了实验室规模的过滤研究，以评估在氧化物涂层的混合介质过滤系统中去除可溶性锰的可能性。过滤柱实验采用了新的无烟煤和沙子，以及从三个全尺寸水处理设施获得的氧化物涂层介质。可溶锰和总锰的去除率根据pH值、所用过滤器中是否存在氧化剂、过滤介质表面氧化物涂层的数量和氧化状态以及温度等参数进行评估。结果表明，在各种溶液条件下，Mn（2+）的去除都是快速有效的。碱性pH条件促进了氧化物表面Mn（2+）的有效去除。 在碱性和酸性pH条件下，游离氯同样促进了介质表面可溶性锰的去除。更强的氧化剂，如KMnO（4）、ClO（2）和O（3），在加入过滤器用水后立即导致Mn（2+）氧化。在这些情况下，锰的去除是通过在过滤器内保留胶体MnO（x）（s）来完成的。低温条件似乎没有抑制Mn（2+）的去除潜力。本文还讨论了这项工作对全面治疗操作的实际意义。包括8个参考文献、表格、图表。

Laboratory-scale filtration studies were conducted to assess the potential for soluble manganese removal within oxide-coated, mixed-media filtration systems. Filter column experiments employed both new anthracite coal and sand as well as oxide-coated media obtained from three full-scale water treatment facilities. Soluble and total manganese removals were evaluated as a function of parameters such as pH, presence or absence of an oxidant in the filter-applied water, quantity and oxidation state of the filter media surface oxide coating, and temperature. Results indicated that Mn(2+) removal was rapid and efficient under a variety of solution conditions. Alkaline pH conditions promoted efficient removal of Mn(2+) on the oxide surface. Free chlorine likewise promoted soluble manganese removal on the media surface under both alkaline and acidic pH conditions. Stronger oxidants such as KMnO(4), ClO(2) and O(3) resulted in Mn(2+) oxidation immediately upon addition to the filter-applied water. In these instances, manganese removal was accomplished by retention of colloidal MnO(x)(s) within the filter. Low-temperature conditions did not appear to inhibit Mn(2+) removal potential. The practical implications of this work for full-scale treatment operations are also discussed. Includes 8 references, tables, figures.