Record Display for the EPA National Library Catalog
RECORD NUMBER: 36 OF 52
|OLS Field Name||OLS Field Data|
|Main Title||Removal of Radium from Drinking Water /|
|Author||Lauch, Richard P.|
|CORP Author||Environmental Protection Agency, Cincinnati, OH. Drinking Water Research Div.|
|Publisher||U.S. Environmental Protection Agency, Office of Research and Development, Risk Reduction Engineering Laboratory, Drinking Water Research Division,|
|Subjects||Drinking water--Contamination. ; Radium.|
|Additional Subjects||Radium ; Removal ; Potable water ; Ion exchanging ; Iron oxides ; Acids ; Resins ; Cation exchanging ; Sorption ; Manganese dioxide ; Fouling ; Sand filtration ; Osmosis ; Electrodialysis ; Drinking water ; Water softening|
|Collation||133 pages : illustrations ; 28 cm|
The report summarizes processes for removal of radium from drinking water. Ion exchange, including strong acid and weak acid resin, is discussed. Both processes remove better than 95 percent of the radium from the water. Weak acid ion exchange does not add sodium to the water. Calcium cation exchange removes radium and can be used when hardness removal is not necessary. Iron removal processes are discussed in relation to radium removal. Iron oxides remove much less than 20 percent of the radium from water under typical conditions. Manganese dioxide removes radium from water when competition for sorption sites and clogging of sites is reduced. Filter sand that is rinsed daily with dilute acid will remove radium from water. Manganese dioxide coated filter sorption removes radium but more capacity would be desirable. The radium selective complexer selectively removes radium with significant capacity if iron fouling is eliminated.
Cover title. "August 1992"--Cover. "(U.S.) Environmental Protection Agency, Cincinnati, OH."--Cover. "PB92-218320"--Cover. Includes bibliographical references. Microfiche.