RADIOCHEMICAL, ASPECTS OF ENVIRONMENTALLY PROTECTIVE PRECIPITATION OFCS AND I AEROSOLS FROM NPP ACCIDENTS

Possible forms of Cs and I radioaerosols from a NPP accident and curre nt radioaerosol protective systems used in various countries are discu ssed. A new concept of environmental protection from Cs and I radioaer osols from a NPP accident is proposed. It involves precipitation and u ses unconventional approaches based nor on filtration of gaseous strea ms but on the extraction from them of radioaerosols and radioiodine by forming artificially generated inactive hydrophilic aerosols of mixed micelles and cocrystallization with them of ionic I species. The gene rality of the proposed concept enables it to be used for protection fr om radioaerosols in various reactors. The protection system may be ind ependent or may supplement already existing protection devices.