Sorption and solidification studies of cesium by a natural zeolite (clinoptilolite, sabzevar)

سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 413

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شناسه ملی سند علمی:

NZEOLITE04_049

تاریخ نمایه سازی: 11 شهریور 1397

چکیده مقاله:

In this study, at first was determined the structure of the natural clinoptilolite of the sabzevar region and investigate the adsorption properties of this absorbent towards Cs+ ion from aqueous solution. The effects of various parameters like pH, contact time, initial metal ion concentration and temperature were studied in batch operation. The results show that maximum adsorption capacity of cesium on to clinoptilolite adsorbent was found to be 172.4 mg.g-1. Then, the cesium-loaded adsorbents were heated at different temperature and the leach test carried out on all the heat-treated samples. Leaching results show that immobilization ability of ion cesium in the heated-treated materials increased as the treatment temperature was increased.

نویسندگان

Parisa Sedighi

Department of Chemistry, University of Maragheh, Maragheh, ۵۵۱۸۱۸۳۱۱۱, Iran

Reza Davarkhah

Nuclear Science and technology Research Institute, P. O. Box ۱۱۳۶۵-۸۴۸۶, Tehran, Iran

Armen Avanes

Department of Chemistry, University of Maragheh, Maragheh, ۵۵۱۸۱۸۳۱۱۱, Iran

Hamid Sepehrian

Nuclear Science and technology Research Institute, P. O. Box ۱۱۳۶۵-۸۴۸۶, Tehran, Iran