NEUTRALISATION METHOD OF LIQUID RADIOACTIVE WASTES OF NUCLEAR POWER PLANTS CONTAMINATED WITH OIL PRODUCTS, CORROSION PRODUCTS AND SYNTHETIC SURFACE ACTIVE SUBSTANCES IN FIELD

摘要

FIELD: power industry.;SUBSTANCE: method provides for sedimentation of waste in an initial tank with draining of contaminants from surface to an oil product sump, pre-cleaning on mechanical bulk filters with modified nitrogen-containing coals and coarse and fine cleaning microfilters, softening and demineralisation on a reverse-osmosis filter with deposition of wastes in two intermediate tanks. Filtrate of reverse-osmosis filters is supplied for additional cleaning on ion-exchange filters, and concentrate is returned to the first intermediate tank before microfilters as an alkalising reagent prior to saturation as to salts with curing of formed radioactive concentrates by introduction to Portland cement. Coals saturated with oil products are replaced with new ones, and waste ones are burnt with oil products drained from the initial tank, including ash residue in Portland cement together with waste concentrates.;EFFECT: improving strength of cement stone by 1,5-2 times and reliable fixation of radionuclides in it.;1 dwg