从历史上看，许多供水设施都产生了 高效锰（Mn） 保持活性锰的去除 过滤介质上的二氧化物（MnO_x（s））表面 吸附可溶性锰。这个过程需要 游离氯的存在使水再生 媒体或系统故障，以及一些实用程序 已停止在使用前添加游离氯 用于实现消毒等治疗目标的过滤器 副产品控制或生物过滤。 结果往往是体内锰含量升高 成品水和相应的 消费者投诉增加。 这项研究证明了 MnO_x（s）-作为后过滤的涂层介质 吸附式接触器提供经济高效的， 高效去除水中可溶性锰 液压加载速率范围，解决方案 pH值、进水锰水平和次氯酸盐 酸浓度。技术整合 通过新的 设计或改造，可以提供有效的 Mn控制，尤其是在寻求 消除双重介质中的游离氯应用 过滤器和/或建立生物过滤 穿过过滤器。包括24个参考文献、图表。

Many water utilities historically have produced highly effective manganese (Mn) removal by maintaining an active manganese dioxide (MnO_x(s)) surface on their filter media that adsorbs soluble Mn. This process requires the presence of free chlorine to regenerate the media or the system fails, and some utilities have ceased adding free chlorine before their filters to pursue treatment goals such as disinfection byproduct control or biological filtration. Often the result is elevated Mn levels in the finished water and a corresponding increase in consumer complaints. This research demonstrated the use of MnO_x(s)-coated media as a postfiltration adsorptive contactor to provide cost-effective, efficient soluble Mn removal across a range of hydraulic loading rates, solution pH, influent Mn levels, and hypochlorous acid concentrations. Integration of the technology into treatment plants, via either new design or retrofit, could provide effective Mn control, especially at facilities seeking to eliminate free chlorine application to dual media filters and/or establish biofiltration across the filters.Includes 24 references, figures.