Experimental determination of the efficiency of filtering equipment for radioactive waste water treatment

Experimental results showed that filtering with an alluvial filter may be used as an independent method of decontamination. It was proved that the mixture of asbestos and kieselgur is most suitable for basic alluvial filtering, especially in a ratio of 500 g asbestos and 1600 g Dicalite 4200 kieselgur. In using this layer which is additionally covered by 800 g of activated charcoal the values of the efficiency indices reached the values Esub(α) and Esub(β) 90 to 100% which means that the maximal possible degree of decontamination was achieved. (J.B.)