Evaluation of Radiocesium Sorption in Some Materials as Safety Barrier System of Radioactive Waste Disposal Demonstration Facility

Determination of 137Cs Elimination from Solution By Tasikmalaya Bentonite and Belitung Quartz Sand As Barrier Material Candidate on the Near Surface Disposal Facility

“…However, semi-empirically results of Freundlich isotherm do not significantly indicate the occurred sorption mechanism of metal ions or radionuclides into solid samples precisely (Bucur et al, 2011). Similar results have been observed from the previous isotherm experiments, where the samples having heterogeneous surfaces would be more suited to be approximated by the Freundlich equation (Setiawan et al, 2015;Setiawan et al, 2016a;Setiawan et al, 2016b).…”

“…Indonesia has many bentonite mines in Java Island (Sukandarrumidi, 2009) that need to be investigated and developed for use in a nuclear facility such as disposal facility as a potential barrier material. For that purpose, the author has been studied the interaction of radiocesium with bentonite from various location in Indonesia (Setiawan, 2008;Setiawan et al, 2011;Setiawan et al, 2014;Setiawan et al, 2015;Setiawan et al, 2016), and also many authors have been studied the sorption characteristics of 137 Cs and also 90 Sr as an important radionuclide with different minerals and soils system (Galambos et al, 2012;Ohnuki and Kozai, 2013;Kubota et al, 2013;Pendleton, 2014;Tachi and Yotsuji, 2014;Yang et al, 2014;Mukai et al, 2015;Setiawan, 2007). With assumption that the first near surface disposal facility will be built in Serpong Nuclear Area-Banten, then the potentially materials required for the construction of facility which was found in the nearby facility need to be investigated including bentonite mineral from Tasikmalaya and quartz sand from Belitung.…”

Sorption Characteristics of ¹³⁷Cs and ⁹⁰Sr into Rembang and Sumedang Soils

“…For the effect of CsCl or SrCl2 concentrations, initial concentrations of CsCl or SrCl2 was varied from 10 -8 to 10 -4 M. Experiment procedures were performed similar to the previous work [10].…”

Interaction of 137Cs with Sumedang Clay as Natural Barrier of Radwaste Disposal

“…The effects of metal ions on K d values can probably be explained by considering the structure of the electrical double layer around the samples [22][23][24]. Since cationic metal ions are fixed to sample matrix, they potentially give high charge density due to ion exchange processes.…”