这项研究评估了印第安纳州哥伦布市一座全规模处理厂的连续再生绿砂除锰替代方案。本研究的具体目标是:（1）根据金属穿透前处理的水量和水头损失累积率，评估去除颗粒铁和锰的替代介质配置；（2） 研究通过在氧化物表面吸附和氧化去除可溶性锰锰（II）的适用性- 涂层介质；（3） 评估天然氧化物涂层介质与市售预涂层介质的性能；（4）建立一个数学模型，以预测（a）在存在游离氯的情况下，通过在氧化物涂层介质表面上吸附/氧化，可溶性锰的去除曲线，以及（b）在没有游离氯的情况下，锰吸附容量的耗尽曲线。

This study evaluated the alternatives to manganese removal by continuously regenerated greensand at a full-scale treatment plant in Columbus, Indiana. Specific objectives addressed in this study were to: (1) evaluate alternative media configurations for removal of particulate iron and manganese with respect to volume of water treated before metals breakthrough and rate of head loss accumulation; (2) investigate the applicability for removing soluble manganese, Mn(II), by adsorption and oxidation onto the surface of oxide-coated media; (3) evaluate the performance of naturally oxide-coated media versus precoated media commercially available; and (4) develop a mathematical model to predict (a) the removal profile of soluble manganese by adsorption/oxidation onto the surface of oxide coated media in the presence of free chlorine and (b) the exhaustion profile of the manganese adsorption capacity in the absence of free chlorine.