Scholarlink

The adsorption study of 133Ba onto raw oil shale rock was carried out, followed by its desorption through sequential extraction, in order to identify the organic and inorganic phases responsible for trapping the 133Ba. It has been shown that 133Ba adsorption can be described by second-order kinetics, with a constant transfer rate (k₂) of 0.84 g·Bq−1·min−1 and a maximum removal of 15.97 Bq·g−1. Sorption kinetics is a two-stage reaction consisting of rapid 133Ba uptake, followed by much slower adsorption kinetics. Equilibrium is characterized by the Freundlich isotherm. Concerning the specific attacks of the mineral and organic phases after adsorption of the 133Ba, the sequential extraction indicates that 133Ba occurs mainly in the residual fraction with about 90% of its total initial concentration. The mineralogical characteristic shows that this fraction consists of clay and quartz intimately linked to the organic matter in oil shale.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Removal of 133Ba from Aqueous Solutions by Adsorption onto Oil Shale and Determination of the Main Phase Responsible for Its Fixation

  • 章节

  • 发表日期：

    2026年

查看全文
  • Samira El Aouidi,
  • Said Fakhi,
  • Moncef Benmansour,
  • Abdelmourhit Laissaoui,
  • Omar Ait Malek,
  • Azzouz Benkdad,
  • Sema Akyil Erenturk,
  • Guillermo Manjón,
  • Ignacio Vioque

摘要

The adsorption study of 133Ba onto raw oil shale rock was carried out, followed by its desorption through sequential extraction, in order to identify the organic and inorganic phases responsible for trapping the 133Ba. It has been shown that 133Ba adsorption can be described by second-order kinetics, with a constant transfer rate (k₂) of 0.84 g·Bq−1·min−1 and a maximum removal of 15.97 Bq·g−1. Sorption kinetics is a two-stage reaction consisting of rapid 133Ba uptake, followed by much slower adsorption kinetics. Equilibrium is characterized by the Freundlich isotherm. Concerning the specific attacks of the mineral and organic phases after adsorption of the 133Ba, the sequential extraction indicates that 133Ba occurs mainly in the residual fraction with about 90% of its total initial concentration. The mineralogical characteristic shows that this fraction consists of clay and quartz intimately linked to the organic matter in oil shale.