RADIOACTIVE-TRACER STUDY OF CS-III OF THE ZAZHOGINO SITE(, CO2+, AND EU3+ SORPTION ON SHUNGITE)

Citation
Ra. Kuznetsov et al., RADIOACTIVE-TRACER STUDY OF CS-III OF THE ZAZHOGINO SITE(, CO2+, AND EU3+ SORPTION ON SHUNGITE), Radiochemistry, 37(2), 1995, pp. 139-141
Citations number
7
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
ISSN journal
10663622
Volume
37
Issue
2
Year of publication
1995
Pages
139 - 141
Database
ISI
SICI code
1066-3622(1995)37:2<139:RSOCOT>2.0.ZU;2-G
Abstract
Sorption characteristics of shungite III of the Zazhogino site with re spect to Cs+, Co2+ and Eu3+ cations have been studied by the radioacti ve tracer method. It was found that the kinetics of the sorption is sl ow and the equilibrium is attained in about 7 days. At pH 5, the distr ibution coefficients of Cs+, Co2+, and Eu3+,, 35, 47, and 660, respect ively. The dependence of the distribution coefficients on the pH of aq ueous solution was determined. The exchange capacity for EU(3+) at pH 6 is 36 mu eq g(-1). The modification of shungite by treating with tol uene or hydrofluoric acid significantly improves its sorption properti es.