在伊利诺伊州罗克萨纳村，去除地下水中铁和锰的典型处理工艺并不能有效地将铁和锰浓度分别降低到0.05 mg/L和0.01 mg/L以下。在采取临时措施后，该村开始考虑几种长期替代方案来解决水质问题。在考虑的替代方案中，用高锰酸钾氧化和去除锰在台架研究中得到了进一步研究。通过使用高锰酸盐进料、反应池中的氢氧化铁作为一级混凝剂，以及阳离子聚合物作为助凝剂，对全规模处理的改进影响了锰的去除。反洗水的回收消除了处理反洗水的潜在问题。锰和铁都被降低到可接受的水平。此外，pH值的增加有助于减少配水系统中的腐蚀性水条件，并延长过滤器运行的持续时间。 包括7个参考文献、表格、图表。

A typical treatment process for removing iron and manganese from groundwater was not effectively reducing iron and manganese concentrations to less than or equal to 0.05 mg/L and 0.01 mg/L, respectively, in the village of Roxana, Illinois. After using temporary measures, the village began looking at several long-term alternatives to solve the water quality problems. Of the alternatives considered, oxidation and removal of manganese with potassium permanganate was investigated further in bench studies. Modification of full-scale treatment affected the removal of manganese by using permanganate feed, ferric hydroxide from the reaction basin as a primary coagulant, and a cationic polymer as a coagulant aid. Reclamation of backwash eliminated a potential problem with disposal of the backwash. Both manganese and iron were reduced to acceptable levels. In addition, the increase in pH helped decrease corrosive water conditions in the distribution system, and the duration of filter runs was lengthened. Includes 7 references, table, figures.