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.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Alhajji E,Al-Masri MS,Khalily H,Naoum BE,Khalil HS,Nashawati Adoi
10.1007/s00128-016-1852-1subject
Has Abstractpub_date
2016-08-01 00:00:00pages
255-60issue
2eissn
0007-4861issn
1432-0800pii
10.1007/s00128-016-1852-1journal_volume
97pub_type
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