Majallah-i ̒Ilmī-i Shīlāt-i Īrān (Jan 2004)
Application of Chitin derivatives for removal of radionuclides from radioactive effluent
Abstract
In this study shrimp shell waste and their derivatives Chitin and Chitosan were studied for 60Co, 137Cs, 90Sr and 54Mn adsorption from low-level radioactive liquid waste (LLW) in batch and 137 continuous method. Shrimp shell waste, demineralized shrimp shell waste, Chitin and Chitosan were selected as natural organic adsorbent. The batch and column ion exchange experimental results show that the sorption was depended on pH, particle size, adsorbent type, deacetylation factor and treating tine. Temperature changes have an effect on treating time but no effect on total sorption. Chitin derivatives, particularly chitosan I & 2, are efficient for radioisotopes removal. Chitosan I with 50-70% deacetylation factor has the best aptitude for removal of radioisotopes and the shrimp shell has the worse......
