SYSTEM FOR CONCENTRATE PURIFICATION Russian patent published in 2015 - IPC G21F9/12 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to system for purification of wastes flow, mainly liquid or water radioactive wastes, for their safe utilisation and converting them into one or two forms, including water form for safe discharge into the environment and hardening form for safe utilisation. Realisation of claimed invention includes realisation of five steps, designated as I-V. Synchronisation of selection of sorbent substances and multirecycle option for separation of target substances from wastes flow is included as stage of step II (sorption and isotopic recovery by means of powder sorbent). Other steps correlate with sorption step (II), including oxidation (I) to deactivate or destruct existing chelating agents, solid-liquid separation (III) and selective ion exchange (IV) to achieve final desirable result of wastes flow processing. Final step consists in final processing (V).

EFFECT: possibility of obtaining predetermined specific strategy for target element by means of synchronisation of selection of sorbent substances ad multicycle option for removal of target substances from flow of radioactive wastes.

28 cl, 1 dwg