سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۶

نویسنده(ها):

A Tayebi – Department of Energy Engineering, Sharif University of Technology, Tehran, Iran
A.R Khanchi – NFCRS, Nuclear Science and Technology Research Institute, AEOI, Tehran, Iran
M Outokesh – Department of Energy Engineering, Sharif University of Technology, Tehran, Iran
M Azad Mousavi – Faculties of Nuclear Engineering, University of Shahid Beheshti, Tehran, Iran

چکیده:

A novel microspherical nanocomposite adsorbent was developed by immobilization of MCM-41 nano silicate in the bio-polymeric matrix of calcium alginate. Distribution coefficients (Kd) of some metal ions were determined for the nanocomposite and its alginate analogue. The results of Kd values revealed that the new adsorbent has high affinity for adsorption of lead, uranium, strontium and cadmium compared with alginate. The kinetics of uranium uptake was estimated by a stirred reactor and the data were fitted with the pseudo second order kinetics model.