HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (18) Citing Articles via Google Scholar Google Scholar Articles by Seaman, J. C. Articles by Bertsch, P.M. Search for Related Content PubMed PubMed Citation Articles by Seaman, J. C. Articles by Bertsch, P.M. GeoRef GeoRef Citation Agricola Articles by Seaman, J. C. Articles by Bertsch, P.M. Related Collections Heavy Metals Other Environmental Contamination Soil Pollution Soil Chemistry

Immobilization of Cesium-137 and Uranium in Contaminated Sediments Using Soil Amendments

Advanced Analytical Center for Environmental Sciences, Savannah River Ecology Lab., Univ. of Georgia, Aiken, SC 29802

View larger version (15K): [in a new window]   Fig. 1. Effect of single reagent-grade amendments on 1.0 mol L-1 NH4Cl-extractable 137Cs+ after equilibrating for 30 d in 0.001 mol L-1 CaCl2. Error bars indicate the standard deviation of the means.

View larger version (17K): [in a new window]   Fig. 2. Effect of various single reagent-grade amendments (hydroxyapatite, illite, zeolite) on 88Sr concentration (A) and pH (B) after equilibrating for 30 d in 0.001 mol L-1 CaCl2. Figure C is the subsequent 1.0 mol L-1 NH4Cl-extractable Sr after equilibration. Error bars indicate the standard deviation of the means.

View larger version (16K): [in a new window]   Fig. 3. Effect of various single reagent-grade amendments (hydroxyapatite, illite, zeolite) on U concentration (A) and pH (B) after equilibrating for 30 d in 1.0 mM CaCl2. Figure C is the subsequent 1.0 mol L-1 NH4Cl-extractable U after equilibration. Error bars indicate the standard deviation of the means.

View larger version (15K): [in a new window]   Fig. 4. Effect of various combined amendments (hydroxyapatite [HA] + illite and HA + zeolite) on U concentration (A) and pH (B) after equilibrating for 30 d in 0.001 mol L-1 CaCl2. Figure C is the subsequent 1.0 mol L-1 NH4Cl-extractable U after equilibration. Note that the results for equilibrium (A) and extractable (B) U for the two treatments are essentially identical. Error bars indicate the standard deviation of the means.

View larger version (34K): [in a new window]   Fig. 5. Effluent 137Cs+ (A) and U (B) concentration for hydroxyapatite [HA]-amended and unamended Sediment A columns leached with 1.0 mol L-1 NH4Cl, 0.001 mol L-1 CaCl2, or 0.001 mol L-1 CaCl2 + 0.0005 mol L-1 NH4Cl. Note that the 137Cs+ levels for all but the 1.0 mol L-1 NH4Cl leachates were below detection limits (<18.6 Bq L-1) regardless of amendment treatment. Error bars indicate the standard deviation of the means.