Removal of Ra-226 from aqueous media and its thermodynamics and kinetics


Erentürk S. , Kaygun A. K.

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.311, ss.1227-1233, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 311 Konu: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10967-016-5047-3
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Sayfa Sayıları: ss.1227-1233

Özet

The composite adsorbent prepared by mixing of polyacrylonitrile and clinoptilolite was used for investigating the adsorption behaviour of Ra-226 in column system. The effective parameters like initial activity concentration, pH of the solution, contact time and temperature for adsorption behaviour of Ra-226 were studied. Adsorption efficiency of Ra-226 on composite adsorbent from aqueous solution was determined to 98.73 +/- 0.59 % at pH 5.0 and 30 A degrees C in a short time. The isotherm models were studied to evaluated adsorption characteristics of Ra-226 onto composite adsorbent. The thermodynamic parameters were showing that the processes for Ra-226 were exothermic. Adsorption kinetics of the radium is also studied.