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, sa.2, ss.1227-1233, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 311 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10967-016-5047-3
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1227-1233
  • Anahtar Kelimeler: Adsorption, Radium-226, Aqueous media, Adsorption isotherms, Thermodynamic, Kinetics, ADSORPTION, SORPTION, BEHAVIOR, URANIUM, RADIONUCLIDES, EQUILIBRIUM, PARAMETERS, ISOTHERM, MODELS, DYE
  • İstanbul Teknik Üniversitesi Adresli: Evet

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.