Abstract
Exhausted poly(acrylamide-acrylic acid) impregnated with zirconium phosphate {P(AM-AA)-ZrP} produced from the treatment process of radioactive liquid waste was incorporated in different types of cement to prevent widespreading of radionuclides into the human environment. The rates at which 60Co, 65Zn and 152,154Eu are leached from Ordinary Portland Cement (OPC) and Blast Furnace Slag Cement (BFSC) were measured. From the leaching data the leach coefficients of 60Co, 65Zn and 152,154Eu were determined and were found to vary between 1.62.10-8 to 7.06.10-10 cm2/day and 1.01.10-8 to 8.93.10-9 cm2/day in OPC and BFSC, respectively. In general, the radionuclide leaching rates followed the order: 152,154Eu>65Zn>60C o. The leach coefficient was found to be dependent on the composition of the leachants and varied in the order: distilled water > ground water > synthetic sea water. The effect of NaNO3 concentration in the wastes on the leach coefficient of 60Co from OPC was also studied
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