Irrversible cesium adsorption capacity of granite-origin soil

Ayeong Lee, Chul Min Chon, Jae Gon Kim, Jungho Ryu, Yeongkyoo Kim

Research output: Contribution to journalArticlepeer-review

Abstract

The irreversible adsorption capacity of radioactive cesium in soil of granite origin was assessed via a desorption experiment. The results demonstrated that the cesium desorption only occurred when it reached 0.035% of the cation exchange capacity, despite the presence of the competing ion (K+). The fixation of cesium on frayed edge sites, primarily ascribed to weathered mica and interpretable via the dual-site Langmuir model, may contribute to this irreversible binding. Consequently, the extraction of these minerals from granite-origin soil possesses the potential to diminish the concentration and volume of radioactive soil waste contamination.

Original languageEnglish
Pages (from-to)289-295
Number of pages7
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume333
Issue number1
DOIs
StatePublished - Jan 2024

Keywords

  • Fixation
  • Frayed edge sites
  • Granite-origin soil
  • Radioactive cesium
  • Weathered mica

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