饮用水中锰含量的升高可能会导致审美问题，比如与管道、水龙头和固定装置、洗衣房和煮熟蔬菜上出现棕黑色污渍有关的问题。锰的去除可以通过将可溶性锰化学氧化成不溶性氧化物来完成。随后在下游过程（例如过滤）中去除不溶性形式。过滤总锰的机制既有吸附机制，也有颗粒拦截机制。在过滤器运行期间，氧化锰可以覆盖过滤介质，并产生自然绿砂效应（NGE），通过吸附在介质表面去除可溶性锰。 尽管人们对传统快速砂滤器通过过滤或拦截去除锰氧化物的能力表示担忧，但本研究证明这是一种潜在的锰去除途径，这将补充NGE。因此，对于有锰问题的饮用水处理厂，本研究发现，通过在过滤前立即添加小剂量的化学氧化剂，可以改善传统方法的去除效果，从而实现NGE和锰氧化物颗粒截留。包括9个参考文献、表格和图表。

Elevated levels of manganese in drinking water can lead to aesthetic concerns, such as problems associated with episodes of brownish-black stains on pipes, faucets and fixtures, laundry and boiled vegetables. Manganese removal can be accomplished with chemical oxidation of soluble manganese to its insoluble oxide form. The insoluble form is then subsequently removed during downstream processes (e.g., filtration). The mechanisms for filtering total manganese are both adsorptive and through particle interception. Manganese oxide can coat filter media during a filter run and develop a natural greensand effect (NGE), which removes soluble manganese by adsorption onto the surface of the media. Although concern has been expressed about the capability of a conventional rapid sand filter for removing manganese oxides by straining or interception, this study demonstrated this as a potential pathway for manganese removal, which will compliment the NGE. Thus for drinking water treatment plants with manganese concerns, this study found that removal with the conventional methods is improved by the addition of a small dose of chemical oxidant immediately prior to filtration to achieve both NGE and particle interception of manganese oxides. Includes 9 references, tables, figure.