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Interaction of Sr-90 with site candidate soil for demonstration disposal facility at Serpong

Setiawan, Budi and Safni, Oktri Mila (2014) Interaction of Sr-90 with site candidate soil for demonstration disposal facility at Serpong. Interaction of Sr-90 with site candidate soil for demonstration disposal facility at Serpong.

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Abstract

Abstract. Interaction of radiostrontium (Sr-90) with site candidate soil for demonstration disposal facility to be constructed in the near future at Serpong has been done. This activity is to anticipate the interim storage facility at Serpong nuclear area becomes full off condition, and show to the public how radioactive waste can be well managed with the existing technology. To ensure that the location is save, a reliability study of site candidate soil becomes very importance to be conducted through some experiments consisted some affected parameters such as contact time, effect of ionic strength, and effect of Sr+ ion in solution. Radiostrontium was used as a tracer on the experiments and has role as radionuclide reference in low-level radioactive waste due to its long half-live and it’s easy to associate with organism in nature. So, interaction of radiostrontium and soil samples from site becomes important to be studied. Experiment was performed in batch method, and soil sample-solution containing radionuclide was mixed in a 20 ml of PE vial. Ratio of solid: liquid was 10-2 g/ml. Objective of the experiment is to collect the specific characteristics data of radionuclide sorption onto soil from site candidate. Distribution coefficient value was used as indicator where the amount of initial and final activities of radiostrontium in solution was compared. Result showed that equilibrium condition was reached after contact time 10 days with Kd values ranged from 1600-2350 ml/g. Increased in ionic strength in solution made decreased of Kd value into soil sample due to competition of background salt and radiostrontium into soil samples, and increased in Sr ion in solution caused decreased of Kd value in soil sample due to limitation of sorption capacity in soil samples. Fast condition in saturated of metal ion into soil samples was reached due to a simple reaction was occurred. Keywords: site candidate, soil samples, radiostrontium, sorption, Kd

Item Type: Article
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Limbah Radioaktif > Teknik Penyimpanan Limbah Radioaktif
Divisions: Pusat Teknologi Limbah Radioaktif
Depositing User: USER PTLR BATAN
Date Deposited: 09 May 2018 06:18
Last Modified: 09 May 2018 06:18
URI: http://repo-nkm.batan.go.id/id/eprint/491

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