Keywords: isotopic ion exchange, Duolite A-113, liquid radioactive waste, distribution coefficients, tracer technique, 82Br, 131I, radioactive iodine, radioactive bromine, ion exchange resin, nuclear waste, nuclear energy, nuclear power
Behaviour of radioactive iodine and bromine from aqueous solutions on the ion-exchange resin Duolite A-113
The iodide and bromide forms of the ion exchange resin Duolite A-113 were equilibrated separately with respectively labelled iodide and bromide ion solutions of different concentrations, varying from 0.005 M to 0.100 M in the temperature range of 26.0°C to 43.0°C. The distribution coefficient Kd values calculated for iodide and bromide ion exchanges increase with the ionic concentration of the external solution; however, with a rise in temperature, the Kd values calculated were found to decrease. Also, the Kd values were higher for iodide exchanges than for bromide exchanges.