Sorption of radium-226 from oil-production brine by sediments and soils

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Authors:Landa, Edward R.; Reid, David F.
Author Affiliations:Primary:
U. S. Geol. Surv., Reston, VA, United States
Volume Title:Environmental Geology (New York)
Source:Environmental Geology (New York), 5(1), p.1-8. Publisher: Springer International, Berlin, Federal Republic of Germany. ISSN: 0099-0094
Publication Date:1983
Note:In English. 37 refs.; illus. incl. 7 tables
Summary:Laboratory experiments showed that Ra sorption was rapid and that the amount sorbed increased with brine dilution. Greatest removals of 226Ra from sediments occurred with alkaline DTPA, HCl and BaCl2, with lesser removals using CaCl2 solutions. Digestion of sediments with NaOCl indicated that most of the native and sorbed 226Ra was associated with the mineral rather than the organic fraction of the sediments. Correlation analysis based on 14 soils indicated that the retention of 226Ra may involve precipitation reactions associated with sulphate-bearing minerals, as well as ion-exchange reactions with the clay minerals.
Subjects:Alkaline earth metals; Brines; Environmental geology; Geochemistry; Isotopes; Metals; Pollutants; Pollution; Ra-226; Radioactive isotopes; Radium; Sediments; Soils; Gulf Coastal Plain; Louisiana; Plaquemines Parish Louisiana; United States
Coordinates:N290000 N295000 W0890000 W0900000
Record ID:1984034015
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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