# US 2014/0194666 A1 · Installation for treating carbonaceous radioactive waste, particularly graphite > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194666 A1 - Document ID: US20140194666A1 - Status: Published application - Kind: A1 - Application number: 13/749,145 - Filed: 2013-01-24 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Assignees: Electricite de France - Applicants: Electricite De France - Inventors: Gérard Laurent - Web page: https://patentgrep.com/patent/US20140194666A1 ## CPC - G21F 9/06: Processing (separating different isotopes of the same chemical element B01D59/00) - B01D 59/00: Separation of different isotopes of the same chemical element (preventing occurrence of critical conditions when producing fissile material G21; shielding from radioactivity G21F) - G21F 9/30: Processing (separating different isotopes of the same chemical element B01D59/00) - G21F 9/08: by evaporation; by distillation - G21F: PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR (radiation protection by pharmaceutical means A61K8/00, A61Q17/04; in cosmonautic vehicles B64G1/54; combined with a reactor G21C11/00; combined with X-ray tubes H01J35/16; combined with X-ray apparatus H05G1/02) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract The invention relates to the treatment of carbonaceous radioactive waste, comprising the delivery of waste to one or more radioactive isotope separation stations isotopes, said isotopes being among at least carbon 14, chlorine 36, and tritium. Advantageously, the delivery to each of the stations occurs in wet form, with water being a common medium for conveying the waste to each of the separation stations. ## Claims ### Claim 1 A method for treating carbonaceous radioactive waste, comprising the delivery of waste to one or more radioactive isotope separation stations, said isotopes being among at least carbon 14, chlorine 36, and tritium, wherein the delivery to each of the stations occurs in wet form. ### Claim 2 (depends on 1) The method according to claim 1, wherein specific separation stations are provided for each element among the carbon 14, chlorine 36, and tritium, as well as delivery in wet form to each of said stations. ### Claim 3 (depends on 1) The method according to claim 1, wherein the waste is crushed and mixed with water for delivery in slurry form, before a first isotopic separation. ### Claim 4 (depends on 1) The method according to claim 1, wherein the waste is mixed with water to form a slurry, then mechanically filtered and dried, and wherein the water issuing from this drying contains all or part of the chlorine 36 initially present in the waste prior to drying. ### Claim 5 (depends on 1) The method according to claim 1, wherein, after separating the chlorine 36, the waste is calcined by roasting, then washed, and wherein the water recovered from the wash contains all or part of the tritium initially present in the waste prior to roasting. ### Claim 6 (depends on 1) The method according to claim 1, wherein the separations of the chlorine 36 and the tritium precede the treatment of the carbon 14. ### Claim 7 (depends on 1) The method according to claim 1, wherein the chlorine 36 and the tritium are separated from the rest of the carbonaceous waste by leaching. ### Claim 8 (depends on 1) The method according to claim 1, wherein, with at least a portion of the waste being calcined by roasting, the waste resulting from the roasting is oxidized to carbon dioxide form for dissolution in the conveying water. ### Claim 9 (depends on 1) The method according to claim 1, wherein the carbon 14 is put in carbon dioxide form for treatment by carbonation reaction, in order to be solidified and stored in solid form. ### Claim 10 (depends on 1) The method according to claim 1, wherein the carbonaceous waste initially contains graphite. ### Claim 11 An installation for treating carbonaceous radioactive waste, comprising one or more radioactive isotope separation stations, said isotopes being among at least carbon 14, chlorine 36, and tritium, as well as means of delivering the waste to said stations, wherein the means of delivery are supplied with water in order to deliver the waste in wet form.