Simulation of a 2-site Langmuir model for characterizing the sorption capacity of Cs and Se in crushed mudrock under various ionic strength effects

Chuan Pin Lee, Ching Yuan Liu, Ming Chee Wu, Chun Hua Pan, Tsuey Lin Tsai, Hwa Jou Wei, Lee Chung Men

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The sorption capacity of cesium (Cs) and selenium (Se) in crushed mudrock was demonstrated in this study through a 2-site Langmuir model. To employ such a numerical analysis, batch tests were applied in this study in synthetic seawater and groundwater with sorption/desorption kinetic experiments (time-dependent) and different concentrations (10-2-10-7 M). The 2-site sorption models, which correspond to two rate constants (k1 and k2), might be more adequate than 1-site sorption models in characterizing Cs and Se sorption/desorption according to the least square errors between the numerical analysis and the results of the batch tests. The fitting results showed that a 2-site Langmuir model is capable of appropriately describing Cs and Se sorption in mudrock. Consequently, the sorption capacity was calculated at about 0.06 mol/kg for Cs and at 0.015 mol/kg for Se.

Original languageEnglish
Pages (from-to)1119-1125
Number of pages7
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume296
Issue number2
DOIs
Publication statusPublished - 2013 May 1

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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