Sina kazazi - Department of Energy Engineering, Sharif University of Technology, P.O. Box ۱۱۳۶۵-۸۶۳۹, Tehran, Iran
Mohammad Outokesh - Department of Energy Engineering, Sharif University of Technology, P.O. Box ۱۱۳۶۵-۸۶۳۹, Tehran, Iran
Meisam Torab Mostaedi - Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box: ۱۱۳۶۵-۸۴۸۶, Tehran, Iran
Rezvan Torkaman - Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box: ۱۱۳۶۵-۸۴۸۶, Tehran, Iran
Mehdi Asadollahzadeh - Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box: ۱۱۳۶۵-۸۴۸۶, Tehran, Iran

The adsorption of thorium ion was investigated in this study by a modified polymer adsorbent in which polypropylene is a substrate and modifying monomers, including acrylonitrile and acrylic acid. Adsorption condition was investigated, including temperature ۲۵-۵۵ œC and pH ۱-۱۰ and residence time ۱-۵ h to obtain the highest percentage of adsorption. As a result, the maximum adsorption capacity was ۵۹.۱ (mg/g). Also, the adsorption test was performed continuously in the fixed bed column.The output concentration starts to increase after ۳۳ minutes, and the column is wholly saturated after ۸۷ minutes.

Heavy Metal, Adsorption, Polymeric Adsorbent, Thorium