本研究的目的是:研究铁锰处理对砷的去除能力；确定软锰矿系统的初步设计和运行特征，以同时去除砷、铁和锰；以及估算资本和运营成本。技术方法包括实验室规模的柱状研究，以调查软锰矿的基本去除特性，以及评估砷、铁和锰去除组合的中试研究。初步结果表明: 软锰矿和粒状氢氧化铁双介质床可将砷水平从20 ug/L降至ND（<2 ug/L）；在铁浓度为0.6 mg/L的情况下，单独使用软锰矿介质可使砷减少46%；而且，使用传统的砂和无烟煤压滤机并没有获得显著的砷去除效果。包括18个参考文献、表格、图表。

The objectives of this study are: to investigate arsenic removal capability in conjunction with iron and manganese treatment; to identify preliminary design and operating features of a Pyrolusite system for concurrent arsenic, iron and manganese removal; and, to estimate capital and operating costs. The technical approach involved bench scale column studies to investigate basic removal properties of Pyrolusite, and pilot studies to assess combined arsenic, iron and manganese removal. Preliminary results indicate that: dual media bed of Pyrolusite and granular ferric hydroxide can remove the arsenic level from 20 ug/L to ND (<2 ug/L); a 46% of arsenic reduction using Pyrolusite media alone was observed with 0.6 mg/L of iron concentration; and, no remarkable arsenic removal was obtained by using conventional sand and anthracite pressure filter. Includes 18 references, tables, figures.