TIME-DEPENDENCE OF THE U ADHERENCE ON THE INSOLUBLE PLASTICS FROM DISPERSION-SYSTEMS

In this paper the U adherence on the insoluble beds immersed in the di spersion systems versus time is investigated. Five materials - organic plastics beds - were used: CEPO-9, T-1, E - OXCLH, FSOH - 0.3 and PT - 25. A homogeneous solution of uranil nitrate of 400 mgU/l concentrat ion was used as a investigation dispersion system. In order to increas e the U sorption rate on the beds we forced the homogeneous systems to evolve towards the aggregation states using the ''activation'' of dis persion systems by the action of the physical factor - nuclear radiati on. Five experimental combinations of systems and adherence materials, undergone or not to this action before or during experiments were stu died. After the immersion of materials - insoluble beds - in the dispe rsion systems, parts of them were sampled at certain time intervals ra nging from 15 minutes up to 92 hours. The adhered U concentrations wer e measured by the fission track method using a reference plastic calib rated in U prepared by authors. The experimental results obtained for the U adherence versus time were compared among them and discussed.