PURIFICATION WORKS Russian patent published in 1997 - IPC

FIELD: sewage purification facilities. SUBSTANCE: purification of domestic effluent and processing of low-active liquid radioactive waste into hard ones at nuclear thermal and electric power stations, at bases of nuclear water- surface and underwater ships, research reactors, plants for utilization of equipment worked out its life in nuclear power engineering can be performed by aerobic biocultivator which has vertical body 14 with alternating perforated and continuous partitions 15, 16 which together form aerobic and draft sections 17, 18. These sections are connected with blowers 19 and they process postfermented residue in bubbling after primary material is fermented in chambers 5, 6, 7, 8, 9. In presence of immobilization head-piece 10, aerobes through surface of their cells are sorbing radionuclides of radioactive waste. Biomass is dried and subjected to pyrolysis for converting into hard waste. EFFECT: high efficiency. 1 dwg