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

This Article Abstract Full Text Free Full Text (PDF) Free 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 ISI Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by Gadelle, F. Articles by Tokunaga, T. K. Search for Related Content PubMed PubMed Citation Articles by Gadelle, F. Articles by Tokunaga, T. K. GeoRef GeoRef Citation Agricola Articles by Gadelle, F. Articles by Tokunaga, T. K. Related Collections Water Quality Watershed and Landscape Processes Heavy Metals Water Pollution

Removal of Uranium(VI) from Contaminated Sediments by Surfactants

^a Lawrence Berkeley National Lab., MS 90-1116, 1 Cyclotron Road, Berkeley, CA 94720
^b Chevron Petroleum Technology Co., 6001 Bollinger Canyon Rd., San Ramon, CA 94583

View larger version (35K): [in a new window]   Fig. 1. (a) Uranium sorption isotherm. (•): o = 10-7 to 10-4 M, = = 1 mM, and pH = 4 ± 0.05. K and 1/n are the Freundlich coefficients obtained using a nonlinear fit: Usorbed = K x Ul/naq. (b) Uranium sorption as a function of pH. o = 10-6 M. 1 g of soil 10 mL-1 of solution. = 1 mM and = 1 , 10 , and 100 mM

View larger version (19K): [in a new window]   Fig. 2. Uranium and iron solubilization as a function of chemical treatments. [U(VI)]o,sorbed = ca. 10-5 mol kg-1. Treatment concentrations are 60 mM. The pH of the soil solutions is indicated on the graph

View larger version (33K): [in a new window]   Fig. 3. (a) Uranium desorption as a function of the treatment concentration. [U(VI)]o,sorbed = ca. 10-5 mol kg-1. (b) Uranium desorption as a function of the amount of uranium initially sorbed. added = 10-7, 10-6, 10-5, and 10-4 M. [Treatment] = 60 mM

View larger version (26K): [in a new window]   Fig. 4. Uranium desorption as a function of the soil to liquid ratio. [U(VI)]o,sorbed = ca. 10-5, 5 x 10-6, and 2 x 10-6 mol kg-1 for 1, 2, and 5 g of soil 10 mL-1 of solution, respectively. [Treatment] = 60 mM. The pH of the soil solutions is indicated on the graph