A Study on Sorption of (226)Ra on Different Clay Matrices.

Abstract:

:The sorption of radium 226 ((226)Ra) on different clay materials (bentonite, illite and a mixture of bentonite-illite) was studied. Clay materials are used in the construction of disposal pits for technically enhanced naturally occurring radioactive materials (TENORM) wastes (i.e., contaminated soil and sludge) generated by the oil and gas industry operations. Experimental conditions (pH, clay materials quantity, and activity concentrations of (226)Ra) were changed in order to determine the optimal state for adsorption of (226)Ra. The results showed that the concentration of adsorbed (226)Ra on clay materials increased with time to reach an equilibrium state after approximately 5 h. More than 95 % of the radium was adsorbed. The mixture of bentonite-illite (1/9) exhibited the greatest adsorption of radium under all experimental conditions.

authors

Alhajji E,Al-Masri MS,Khalily H,Naoum BE,Khalil HS,Nashawati A

doi

10.1007/s00128-016-1852-1

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

255-60

issue

2

eissn

0007-4861

issn

1432-0800

pii

10.1007/s00128-016-1852-1

journal_volume

97

pub_type

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