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Class Information
Number: 976/DIG.381
Name: Nuclear technology > Decontamination arrangements; treating radioactively contaminated material [g21f-9/00] > Treating liquids [g21f-9/04] > Processing [g21f-9/06] > By evaporation; by distillation [g21f-9/08]

Patents under this class:
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Patent Number Title Of Patent Date Issued
7857940 Liquid radioactive waste treatment system Dec. 28, 2010
6218592 Method and apparatus for the treatment of radioactive evaporator concentrates from nuclear plants Apr. 17, 2001
5732362 Method for treating radioactive laundry waste water Mar. 24, 1998
5587047 Method for separating boric acid Dec. 24, 1996
5585531 Method for processing liquid radioactive waste Dec. 17, 1996
5545798 Preparation of radioactive ion-exchange resin for its storage or disposal Aug. 13, 1996
5468347 Method for separating boric acid Nov. 21, 1995
5457266 Process for treating radioactive waste Oct. 10, 1995
5434334 Process for treating an aqueous waste solution Jul. 18, 1995
5430227 Process for handling liquid radioactive waste Jul. 4, 1995
5283010 Tritium removal Feb. 1, 1994
4902446 Method for reducing the volume of radioactively loaded liquids, and finned body for use in the process Feb. 20, 1990
4892684 Method and apparatus for separating radionuclides from non-radionuclides Jan. 9, 1990
4867762 Method and a device for purifying a gas containing hydrogen isotopes Sep. 19, 1989
4836934 System for removing liquid from slurries of liquid and particulate material Jun. 6, 1989
4832841 Liquid treatment apparatus May. 23, 1989
4741866 Process for disposing of radioactive wastes May. 3, 1988
4727231 Method and apparatus for denitration of nitrate solution by microwave heating Feb. 23, 1988
4675129 Method of handling radioactive waste and especially radioactive or radioactively contaminated evaporator concentrates and water-containing solids Jun. 23, 1987
4626414 Apparatus for the packaging of radioactive wastes in storage containers Dec. 2, 1986
4586981 Method of continuous decontamination of radiocontaminated liquids by distillation May. 6, 1986
4585558 Separation system Apr. 29, 1986
4569787 Process and apparatus for treating radioactive waste Feb. 11, 1986
4565670 Heat treating apparatus using microwaves Jan. 21, 1986
4540512 Recovery of boric acid from nuclear waste Sep. 10, 1985
4526713 Process and system for treatment of radioactive waste Jul. 2, 1985
4481135 Process for the treatment of basic aqueous effluents Nov. 6, 1984
4476048 Method of treating radioactive waste water Oct. 9, 1984
4447293 Scraping blades for use in thin film dryers May. 8, 1984
4444680 Process and apparatus for the volume reduction of PWR liquid wastes Apr. 24, 1984
4440673 Method of and apparatus for the treatment of radioactive waste water from nuclear power plants Apr. 3, 1984
4437933 Apparatus for treating radioactive liquid wastes Mar. 20, 1984
4432894 Process for treatment of detergent-containing radioactive liquid wastes Feb. 21, 1984
4383888 Process for concentrating radioactive combustible waste May. 17, 1983
4377508 Process for removal of radioactive materials from aqueous solutions Mar. 22, 1983
4349412 Method of concentrating and drying water-containing fluent media Sep. 14, 1982
4308105 Method of and apparatus for decontamination of radioactive waste water Dec. 29, 1981
4305780 Hot air drum evaporator Dec. 15, 1981
4290907 Process for treating radioactive waste Sep. 22, 1981
4274962 Apparatus for treating radioactive concentrates Jun. 23, 1981
4273670 Apparatus for and method of removing radioactive bottoms from an evaporator Jun. 16, 1981
4246065 Radioactive waste concentration Jan. 20, 1981
4242220 Waste disposal method using microwaves Dec. 30, 1980
4234448 Method and apparatus for treating radioactive waste Nov. 18, 1980
4226678 Method and apparatus for the decontamination of a liquid containing contaminants Oct. 7, 1980
4223696 Apparatus for the purpose of avoiding pressure drop between a gaseous or vaporous phase and a liquid phase Sep. 23, 1980
4209399 Process for the working up and regeneration of wash waters containing ammonium Jun. 24, 1980
4208298 Process for treating radioactive liquid waste Jun. 17, 1980
4203863 Process for the production of solid particles May. 20, 1980
4139420 Liquid waste disposal system Feb. 13, 1979

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