Abstract
A wastewater treatment system has been developed by using a cesium selective inorganic ion exchanger. The selective separation of cesium (137 Cs, 134Cs) from high salt concentration and strongly alkaline evaporator bottom has a volume reduction factor about 1800-3500 at the value of the decontamination factor DF>100, for the samples of four tanks of the Hungarian PWR Paks.
Also an ion exchange treatment technology has been developed by using a mixture of ammonium-insoluble tannin and mixed ion exchange resin (MIX) for the selective separation of transuranium isotopes, including Pu, Am, Cm, and U, as well as fission and radioactive corrosion products from boric acid solution (pH-4.1) . The equilibrium and fixed bed sorption experiments resulted in Kd values of 104-105 ml/g, and decontamination factors of 1, 000, with a breakthrough point between 1500 BV and 5000 BV of accumulated volume.
