Zeolite Used for Optimized Removal of Radioactive Cobalt with Response Surface Methodology

Abstract

Radioactive cobalt is one of the most abundant radionuclides in radioactive waste. This study investigated the removal of radioactive cobalt (60Co) by adsorption with zeolite 3A and 5A from aqua solution. The response surface methodology was employed to constitute the predictive regression model to guess the decontamination factor for radioactive cobalt removal. The experimental maximum decontamination factor 30.37 and 15.9 were obtained for zeolite 3A and zeolite 5A, respectively. The calculated model was significant for both zeolite 3A and 5A (p lt;0.05). The predicted maximum decontamination factor was 30.05 and 15.19 in optimum conditions for zeolite 3A and zeolite 5A, respectively. Zeolite 3A has a higher adsorbent capacity than zeolite 5A for the removal of radioactive cobalt from aqueous solution.

Keywords

• radyoaktif kobalt
• adsorpsiyon
• cevap yüzey yöntemi
• zeolit 3a
• zeolit 5a
• radioactive cobalt
• adsorption
• response surface methodology
• zeolite 3a