METHOD OF BIOLOGICALLY TREATING WATER TO REMOVE MAN-CAUSED RADIONUCLIDES Russian patent published in 2005 - IPC

FIELD: water treatment and radiation safety.

SUBSTANCE: invention relates to methods and means for treatment of large volumes of seawater to remove man-caused radionuclides contained in relatively low concentrations, which nevertheless exceed maximum permissible concentration thereof near the stationing zones of ships including those with nuclear-energetic installations and over the seabed radioactive waste disposal zones. Treatment is accomplished owing to high absorption capacities of some seaweeds cultivated in water-permissible biological container, which is freely inserted inside floating pontoon or surge-proof platform. The entire system is mounted over the liquid radioactive waste emission zones for a period of 20 to 40 days until biocontainer is completely filled with seaweeds. Container is then taken away and held to allow water to flow down. Radioactive seaweeds are dried and burned to give ash residue, which is buried.

EFFECT: prevented pollution of water with harmful chemical and radioactive wastes.

3 cl, 2 dwg, 1 tbl, 2 ex