在伊利诺伊州莱蒙进行了实地研究，以评估用于从地下水中去除镭的特定吸附剂和反渗透（RO）膜。镭选择性络合剂和负载硫酸钡的氧化铝似乎最有可能从原水或离子交换盐水中低成本吸附镭，前提是可以解决废介质的最终处理问题。一个新的低压（70磅/平方英寸）反渗透模块分别实现了91%和87%的镭和总溶解固体（TDS）去除率。使用标准或低压RO模块进行集中处理对于去除镭是有效的，但如果不需要减少TDS，则成本高昂且不必要。 使用反渗透的使用点处理对于去除镭是有效的，并且对于非常小的社区可能具有成本效益。包括35个参考文献、表格和图表。

Field studies were conducted in Lemont, Illinois, to evaluate specific adsorbents and reverse osmosis (RO) membranes for removing radium from groundwater. A radium-selective complexer and bariumsulfate-loaded alumina appeared to have the best potential for low-cost adsorption of radium from raw water or ion exchange brines, provided that the problem of the ultimate disposal of spent media can be solved. A new, low-pressure (70-psi) RO module achieved radium and total dissolved solids (TDS) rejections of 91 and 87 percent, respectively. Central treatment with standard or low-pressure RO modules would be effective for radium removal-but expensive and unnecessary if TDS reduction is not also required. Point-of-use treatment using RO is effective for removing radium and may be cost effective for very small communities. Includes 35 references, tables, figures.