||Evaluating various adsorbents and membranes for removing radium from groundwater /
Miller, J. E. ;
Clifford, D. ;
Vijjeswarapu, W. ;
||Houston Univ., TX. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Risk Reduction Engineering Laboratory,
Water pollution control ;
Ground water ;
Field tests ;
Performance evaluation ;
Drinking water ;
Water supply ;
Ion exchanging ;
Radioactive materials ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||14 pages ; 28 cm
Field studies were conducted in Lemont, IL to evaluate specific adsorbents and reverse osmosis (RO) membranes for removing radium from groundwater. A radium-selective complexer and barium-sulfate-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-psig) RO module achieved radium and total dissolved solids (TDS) rejections of 91 and 87%, respectively. Central treatment with standard or low-pressure RO modules would be effective for radium removal but would be 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.
"Thomas J. Sorg, project officer." "Journal article." "EPA/600/J-88/307." "Published in AWWA, vol. 80, July 1988, pgs. 94-104." Microfiche.