Method for the treatment of metal waste restriction (options)

 

(57) Abstract:

Variants of the invention relate to the field of nuclear energy and atomic industry and is aimed at improving the environmental, economical technology for the treatment of metal waste restriction, ship waste, in particular. The method includes processing waste with lowering their total specific activity, but exceeding the level of the total specific activity from which waste can be used without restrictions on radioactivity, storage of waste at the landfill for industrial waste off-site nuclear facility, reducing the free volume of waste before placing them on the ground with the natural reduction of the specific activity to the level of specific activity, allowing to treat waste without limitation radioactivity, dispose of waste, in particular, or storage of solid metal waste limited use at the landfill for industrial waste off-site nuclear facility with the fixation of removable radioactive contamination on the surface or inside of the waste or removal of the removable particulate metal waste ogran the frame use, reducing the leaching of these radionuclides, reducing the required storage capacity for the waste, increasing the number of non-radioactive scrap metal from nuclear facilities. 3 S. and 6 C.p. f-crystals.

The invention relates to the field of nuclear energy and nuclear industry and related to the treatment of metal waste restriction, ship waste, in particular.

There is a method for the treatment of metal waste reactor, non-radioactive and non-toxic, by their removal from the site of a nuclear facility as scrap metal for re-use or industrial landfill, designed for non-radioactive and non-toxic materials, with the possible use them later (see, for example, C. LFellhauer, G. A. Garlock, Decontamination and Decommissioning of the JANUS Reactor at the Argonne National Laboratory - East Site, Decommissioning, Decontamination and Reutilization of Commercial and Government Facilities, Topical Meeting on Decontamination and Decommissioning and Reutilization of Commercial and Government Facilities Proceedings, Knoxville, TN, September 7-12, 1997, American Nuclear Society, La Grange Park, IL, 1997, p.94-101).

There is a method for the treatment of metal waste limited use, contaminated characteristic legkovodnyh reactor nuclides54Mn60Co.,what proof and the melting of the waste extract melt for 0.5-1.0 hour with subsequent curing, moreover, if an immediate cure all90Sr and approximately 60%137Cs is transferred into the slag, the rest of137Cs and 20%65Zn evaporates and is deposited on the filter, the maximum exposure time evaporates all137Cs and up to 90%65Zn, and the60And its chemical analogue of 63Ni distributed evenly across the metal ingot (see, for example, H. Nakamura, K. Kanasawa, K. Fujiki, R&D on Melting of Radioactive Metal Wastes at JAERI, Proceedings of 3-rd this country/ASME Joint International Conference On Nuclear Engineering (ICONE-3), April 23-27, 1995, Kyoto, Japan, Tokyo, this country, 1995, v.4, p.1785-1789).

There is a method for the treatment of metal waste restriction, including compacting, with the formation of these "cakes", the decrease in free volume of waste in 2-5 times, the absorption of the emitted when pressing aerosol filters (see, for example, Decommissioning Handbook, Chapter 8 "Waste Treatment", U. S. Department of Energy, Office of Environment Restoration, DOE/EM-0142P, March 1994, p.8-19-8-20).

The closest is a known method for the treatment of metal waste restriction, including chemical decontamination of the steam generators research reactor Agesta, Stockholm, Sweden, in the composition of deposits on the tubes, which included, in particular, radionuclides60With,238Pu,239Tali and non-ferrous metals, with the decrease in specific activity of molded beam tubes of the steam generator stainless steel up to 1-4 kBq/kg, with the dominance of received waste60With, the reduction in the volume of waste for storage and disposal, temporary storage is not buried metallic waste, and, in accordance with Swedish practice, the ingots with the above specific activity obtained when the melting beam tubes of stainless steel, can be transferred at a steel company as a non-radioactive metal after 5-12 years (see , for example, Sh.Menon, Decommissioning of Nuclear Submarines: Waste Minimization by Recycling, Analysis of Risks Associated with Nuclear Submarine Decommissioning, Dismantling and Disposal, NATO/Russian Academy of Sciences Advanced Research Workshop, Moscow, Russia, November 24-26, 1997, Dordrecht, Kluwer Academic Publishers, 1999, p. 129-136). the prototype.

The main disadvantage of known methods for the treatment of metal waste restriction lies in the complexity and ecologicaly technologies and the high cost of reducing the specific activity of a significant number - million tons of waste to the level of specific activity, allowing to treat waste without restrictions on radioactivity necessary to place the waste storage facilities and landfills on premplus is nological treatment of metal waste restriction with regard to the natural reduction of radioactivity.

This problem is solved by the invention due to achieve a technical result, a reduction of the specific activity of metal waste restriction placed on the storage, reducing leaching of these radionuclides, reducing the required storage capacity for metal waste, increasing the number of non-radioactive scrap metal from nuclear facilities.

The technical result is achieved in a method for the treatment of solid metal waste specific activity of solid waste restriction, including removing them from removable radioactive contamination, processing the waste to the level of the total specific activity, comprising 0.5 to 98.5% of the lower level of the specific activity of solid low level nuclear waste above the level of the total specific activity from which waste can be used without restrictions on radioactivity, waste disposal at the landfill for industrial waste off-site nuclear facility, storage of waste at the landfill, it is proposed to reduce the free volume of waste at 5-95% before placing them on the ground, it is recommended to dispose of the waste after natural red eye reduction is LASS="ptx2">

Example 1. Subject to the dismantling of a nuclear submarine is placed on the slipway shipyard separate reactor compartment, using the method of laser cutting of large thick-walled objects, including activated and contaminated (see, for example, R. B. Arutyunyan, G. A. Baranov, A. K. Zinchenko, Problems of Safe Application of Laser Technological Process for Disassembly of the Nuclear Installations of NSM, Analysis of Risks Associated with Nuclear Submarine Decommissioning, Dismantling and Disposal, NATO/Russian Academy of Sciences Advanced Research Workshop, Moscow, Russia, November 24-26, 1997, Kluwer Academic Publishers, Dordrecht, 1999, p. 137-144), steel structures and equipment compartments adjacent to the reactor compartments of nuclear submarines, contaminated to the level of the specific activity of solid waste restricted cover on the slipway compound-based gel with the addition of the curing agent for the fixation of removable radioactive contamination when cutting with subsequent curing, remove the compound with removable surface contamination of the waste (see, for example, D. Boulitrop, J. P. Gauchon, Y. Lecoffre, Specific Decontamination Methods: Water Lance, Erosion by Cavitation, Application of Gel-Based Decontaminants, Decommissioning of Nuclear Power Plants, Proceedings of European Commission, Luxembourg, 1984, Published by Graham & Trottman, London, 1984, p. 177-195), perform cuts with office equipment and structures with specific activity of the solid is different metallic objects, including activated and contaminated (see, for example, Decommissioning Handbook, Chapter 10 "Dismantling, Segmenting and Demolition", U. S. Department of Energy, Office of Environment Restoration, DOE/EM-0142P, March 1994, p. 10-47-10-51), with the capture of the resulting aerosols are removed on the stocks of metal waste from the compartments adjacent to the reactor compartment, cut up on the stocks received waste plasma cutters (see, for example, G. Pilot, G. Bernard, J. R. Costes, J. P. Grandjean, Dismantling: Comparative Tests of Five Cutting Tools, Proceedings of 3-rd this country/ASME Joint International Conference On Nuclear Engineering (ICONE-3), April 23-27, 1995, Kyoto, Japan, Tokyo, this country, 1995, v. 4, p. 1751-1756) to mass and size corresponding to the characteristics of the furnace to 1000 kg for the smelting of radioactive metal waste, DC, posted on the site of the dockyard, transported waste from the building to the furnace in the container for low level waste, move waste from the container into the oven, perform the smelting waste, the pouring of the metal from the furnace into the mold, the solidification of the metal in the form of ingots with a total specific radioactivity, making 30% from the lower level of the normative set of specific activity of solid low level nuclear waste and the appropriate regulatory set values for radioactivity in solid wastes limited use, radiation knymi radiation, transported bars on the coastal industrial waste landfill off-site nuclear facility, place the bars in the landfill for industrial waste in a land-based store, representing a storage room made of metal, lined with metal sheets, the Foundation of which is made of metal plates that are installed on concrete blocks placed on a levelled platform from permafrost soil, thus reducing impact on the people and environment of volatile-emitters due to transition them into slag and materials of furnace filters, other - and-emitters because of their uniform distribution over the volume of the ingot and Samotechnaya radiation, remove the barrel containers for low level nuclear waste from the furnace radioactive slag, filters, delays radioactive dust and gases, including volatile metals and their compounds, compound with fixed removable radioactive contamination, brew barrel containers, transported them to store low level nuclear waste, place the barrel container with slag, filters and compound in the store, keep low level nuclear waste repository, store ingots - metal waste at the landfill for industrial the I in them of their common radionuclides specific activity will be reduced to 0.3 kBq/kg (specific activity of solid waste, below which they can be sent to storage without limits on radioactivity., in accordance with the Basic sanitary rules for radiation safety (OSPORB-99), M., the Russian Ministry of health, 2000, S. 54).

Example 2. Same as in example 1, but with remote metal waste restriction does not remove the fixed compound of removable radioactive contamination, cut waste under size decontamination baths, put them in a container for low level waste, move the waste into the container for decontamination tub installed in the shop shipyard, place them in decontamination tub, inactivate waste in a bath of nitric acid with ozone and cerium (see for example, O. Anderson, J. Bjerier, Sh. Menon, The Agesta Steam Generator Decontamination Project, Proceedings of. International Symposium on Decontamination &Decommissioning, Knoxville, TN, April 25-28, 1994, American Nuclear Society, La Grange Park, IL, 1994, Paper No 48, 6 p), thus reducing the specific activity of the waste to 10% of the lower level of the normative set of specific activity of solid low level nuclear wastes and the applicable standard established values of radioactivity solid waste limited use, wash water remains desactivation is taken of radioactive contamination, cut metal waste to the size of the compression of the waste does not exceed 0.5 m in length and 0.2 m in width, perform the compaction of waste, reduction of free volume in 3 times, transported waste to the coastal industrial waste landfill off-site shipyard, place them on the ground for industrial waste in a land-based store, representing a storage room made of metal, mounted on a levelled platform from permafrost soil, thus reducing impact on the personnel and the environment from all types of emitters due to the removal of removable radioactive contamination and chemical decontamination, - and-emitters by pressing with an uneven distribution by volume of compacted waste and partial Samotechnaya radiation, secondary liquid radioactive wastes generated during decontamination, regenerate, perform the curing is obtained when the regeneration level radioactive concentrate radioactive sludge and suspended solids (see , for example, G. Chechelnitski, S. Gavrilov, V. Kremnev, F. Lifanov, Development of the Low and Intermediate Radioactive Waste Management Concept, Proceedings of the 5th annual, scientific and technical. conference of Nuclear society, Obninsk, 1994, the more of them transport the waste containers in the storage level radioactive waste, placed them in a store, store level radioactive waste in the repository, store the bars in an industrial waste landfill in a warehouse for 10 years, during which, due to natural decay contained radionuclides total specific activity of the waste is reduced to 0.3 kBq/kg, after which the metal waste may be sent to storage without limits on radioactivity.

Example 3. Same as in example 1, but waste from the landfill - ingots stainless steel with 10-12% Nickel, after reduction of the specific activity of 0.3 kBq/kg and additional hygiene control radiological and toxic characteristics of the metal used as scrap metal for fabrication of structural steel bridges and tanks, operated in a wet environment, and remove the Nickel by electrolysis of the waste for the manufacture of batteries (see, for example, T. Heaton, V. MacNair, A. Liby, The Reuse of Decontaminated Nickel in Nickel-Metal Hydride Batteries, Decommissioning, Decontamination and Reutilization of Commercial and Government Facilities, Topical Meeting on Decontamination and Decommissioning and Reutilization of Commercial and Government Facilities Proceedings, Knoxville, TN, September 7-12, 1997, American Nuclear Society, La Grange Park, IL, 1997, p.638-645).

There is a method for the treatment of metal waste restriction, including floor dismantled structures of two-component liquid, the combination of which form desiny to the dismantled structures solution with subsequent curing, fixing on dismantled the structures of removable radioactive contamination of the polymer, polyurethanes of different composition, in particular, resistant to diffusion through him radionuclides contaminating the surface of the waste and leached from them, including3H,60And137Cs, waterproof, mechanical, durable, non-combustible, resistant to high temperature, non-toxic, forming a coating of different thickness by spraying a two-component liquid media (see, for example, S. de Tassigny, Immobilization of Contamination by the Coating of Polymers on Large-size Waste Products, 1989 International Conference on the Decommissioning of Nuclear Installations Proceedings, Research Programme Decommissioning of Nuclear Install with metal waste restriction, representing 4 dismantled steam generator 1 reactor nuclear power plant Salem, Hancocks bridge, new York state, USA, with the radioactivity of each steam generator from 122 to 143 Ki (approximately 200 kBq/kg) after a stop block for two years, for which mostly decayed radionuclides with short half-lives, for example, 58From the floor of the steam generator based paint epoxide resin with hardener, curing, remove them from the containment of a nuclear power plant on its site, placement on the site without additional shelter, in addition to burial in the ground site metal waste from dismantled steam generator 1.2 m and covering them with wood, the transport of the steam generators on the road in the storage Barnwell, USA, placing them on site storage on steel frames without shelters, storage steam generators on site storage; provided, in particular, that the frames can be welded steel sheets for covering steam generator, (see , for example, H. Cruickshank, J. Gomeringer, R. Killen, Fast Track Stream Generator Disposal at Salem Generating Station, Topical Meeting on Decontamination and Decommissioning and Reutilization of Commercial and Government Facilities Proceedings, Knoxville, TN, September 7-12, 1997, American Nuclear Society, La Grange is the od restriction lies in the complexity and ecologicaly technologies and the high cost of reducing the specific activity of a significant number - millions of tons of waste to the level of specific activity, allowing to treat waste without restrictions on the level of radioactivity necessary to place the waste storage facilities and landfills on-site nuclear facilities.

The objective of the invention is to increase the environmental, economical and technological treatment of metal waste restriction with regard to the natural reduction of radioactivity.

This problem is solved by the invention due to achieve a technical result, a reduction of the specific activity of metal waste restriction placed on the storage, reducing leaching of these radionuclides, reducing the required capacity of storage facilities for radioactive metal waste, increasing the number of metal waste from nuclear facilities as non-radioactive scrap metal.

The technical result is achieved in a method for the treatment of solid metal waste specific activity of solid waste restriction, including the fixation of removable radioactive contamination on their surface, placement of waste at the landfill for promyshlenymi specific activity, with which they can be stored without restrictions on radioactivity, serves also to lock the removable radioactive contamination in waste processing, it is recommended to dispose of the waste after the natural reduction of radioactivity in the landfill, waste treatment.

The invention proposes to implement the following way.

Example 4. The enterprise for the production of enriched uranium disassemble the line of uranium enrichment isotope235U, the equipment which consists of contaminated and activated solid metal waste medium and low specific activity and solid metal waste restriction, including active and transuranic nuclides (Basic sanitary rules for radiation safety (OSPORB-99), M., the Russian Ministry of health, 2000, S. 54), cover it with a polyester with a hardener and a filler for fixing the removable radioactive contamination when cutting and transportation of metal waste, prevention of diffusion of radionuclides from the waste surface, their leaching from the waste, followed by curing, perform cuts with office equipment and steel structures unit is Sennoy sharp with the capture of the resulting aerosols, remove metal waste received from shop to be dismantled equipment on site shop for cutting dismantled equipment, cut it on the plot plasma cutters to mass and size corresponding to the size of the metal containers used for low level nuclear storage dual-purpose transport and storage of radioactive waste, cover place of cuts three-component mixture of the same composition with the formation of the polymer to prevent diffusion of radionuclides from the newly formed cuts the surface of the waste, leaching of radionuclides from them in places cuts, place waste with fixed removable radioactive contamination in the dual-purpose containers, loaded metal waste limited use, containers brew, transport the waste to the landfill for industrial waste off-site enterprise for the production of enriched uranium, place them on the ground, keep the waste at the landfill during the 80 years in land warehouse, after the collapse of the main part of fissile materials and fission products with half-lives not exceeding 15 years, and the uranium to the induction furnace, remove cover brewed containers using gas cutting, remove waste from containers, cut up waste for melting in a high frequency induction furnace for radioactive materials with capacity of 200 kg for melting, perform melting metal waste with exposure of the metal in the molten state for 1 hour to remove the slag and filters volatile radionuclides (see , for example, H. Nakamura, K. Kanasawa, K. Fujiki, R&D on Melting of Radioactive Metal Wastes at JAERI, Proceedings of 3-rd this country/ASME Joint International Conference On Nuclear Engineering (ICONE-3), April 23-27, 1995, Kyoto, Japan, Tokyo, this country, 1995, v. 4, p. 1785-1789), as well as nuclides of uranium, in particular, to produce ingots of metal, non-radioactive on the specific activity of the solid waste that is used for the production of high quality stainless steel in compliance with the sanitary and hygienic conditions, remove from the oven, the remaining polymer with fixed removable radioactive contamination, polymer, slag and filters containing fissile materials and fission products - level radioactive waste is placed in casks, barrels brewed, pressed the barrel to capture aerosols obtained "pellet" is placed in barrels, containers, barrels, containers brew, send to landfill in movilnet metal waste at the landfill for industrial waste off-site enterprise for the production of enriched uranium for 50 years, transport the waste from the landfill to the industrial site, open the containers are then removed from the metal waste, put them in a decontamination bath to remove the top layer of metal waste removed from the waste retention of removable radioactive contamination of the polymer with the remaining therein nuclides, cut waste for melting in induction furnace AC for low level nuclear materials for the production of 400 kg for melting, perform the melting of the waste extract metal in the molten state for 1 hour to remove the slag and filters radionuclides to produce ingots of metal, non-radioactive on the specific activity of solid waste, which are used for the production of high-quality stainless steel in compliance with the sanitary and hygienic conditions, decontamination solution from the bath regenerate drop and vitrification of the formed salts, including active and transuranium nuclides, wash with remote locking removable radioactive contamination of the polymer with the remaining therein nuclides remains decontamination solution, evaporated secondary liquid radioactive waste received at promyvion activity corresponding to the activity level of the waste of limited use, transport containers, transported solid waste containers to the landfill for industrial waste off-site enterprise for the production of enriched uranium, place solid waste at the landfill, the dried polymer - solid radioactive waste with the level of activity corresponding to the activity level of the waste of limited use, place it in barrels, brew barrel, pressed the polymer in the barrel, received the "pancakes" are placed in barrels, containers, barrels brewed containers, transported waste in barrels containers to the landfill for industrial waste off-site enterprise for the production of enriched uranium, place waste in barrels containers at the landfill for storage in a warehouse for 50 years.

There is a method for the treatment of metal waste restriction, obtained after decontamination of contaminated fissile materials and fission products of metal structures and equipment or without decontamination, followed by remelting of metal waste and non-radioactive metal in several national nuclear laboratory is from the national Supervisory services, non-radioactive metal in the first place, lead, copper, aluminum, and Nickel (see, for example, J. H. Cavendish, Treatment of Metallic Wastes by Smelting, Proceedings of a Symposium, "Decommissioning of Nuclear Facilities", 13-17 November, 1978, Vienna, Austria, Vienna, IAEA, 1979, p.611-630).

There is a method for the treatment of metal waste restriction, including compaction of waste, reduction of free volume in 2-5 times, the formation of these "cakes", absorption released during compaction of the aerosol filters (see, for example, Decommissioning Handbook, Chapter 8 "Waste Treatment", U. S. Department of Energy, Office of Environment Restoration, DOE/EM-0142P, March 1994, p.8-19-8-20).

The closest is a known method for the treatment of metal waste restriction, including waste melting furnace DC, which remove surface contamination by radionuclides, including volatile radionuclide137Cs in the amount of 75-98%, within the solidified waste (see, for example, J. K. Wittle, R. A. Hamilton, P. J. Wilver, The Potential Use of DC Graphite Melter Technology in the Decontamination and Decommissioning and Reutilization, Topical Meeting on Decontamination and Decommissioning and Reutilization of Commercial and Government Facilities Proceedings, Knoxville, TN, September 7-12, 1997, American Nuclear Society, La Grange Park, IL, 1997, p.479-486) prototype.

The main disadvantage of this method converts the guy and the high cost of reducing the specific activity of a significant number - millions of tons of waste to the level of specific activity, allowing to treat waste without restrictions on radioactivity necessary to place the waste storage facilities and landfills on-site nuclear facilities.

The objective of the invention is to increase the environmental, economical and technological treatment of metal waste restriction with regard to the reduction of their radioactivity.

This problem is solved by the invention due to achieve a technical result, a reduction of the specific activity of metal waste restriction placed on the storage, reducing leaching of these radionuclides, reducing the required capacity of storage facilities for radioactive metal waste, increasing the number of metal waste from nuclear facilities as non-radioactive scrap metal.

The technical result is achieved in a method for the treatment of solid metal waste specific activity of solid waste restriction, including the removal of their removable radioactive contamination, waste disposal at the landfill for industrial waste off-site nuclear is th can be stored without restrictions on radioactivity, it is proposed to reduce the free volume of waste at 5-95%, it is recommended to dispose of the waste after the natural reduction of radioactivity in the landfill, waste treatment.

The invention proposes to implement the following way.

Example 6. On the stocks shipyard place floating technical base recharge reactors, separate compartment-storage of irradiated nuclear fuel from the other compartments, using the known method of gas cutting of large-sized objects, including activated and contaminated (see, for example, A. Ya.Blecher, V. S. Bychenkov, V. V. Dovgusha, A. B. Krupkin, V. I. Kvasha, K. K. Popkov, Comparative Ecological and Hygienic Analysis of Existing and Perspective Technologies for Nuclear Submarine Disintegration, Nuclear Submarine Technologies for Nuclear Submarine Disintegration, Nuclear Submarine Decommissioning and Related Problems, NATO/Russian Academy of Sciences Advanced Research Workshop, Moscow, Russia, June 19-22, 1995, Kluwer Academic Publishers, Dordrecht, 1996, p. 263-271), 'low-level' structures and equipment other compartments floating technical base coat based on epoxy resin with hardener for fixation of removable radioactive contamination when cutting and transportation of solid waste, gas cutting separate low level nuclear waste, steel structures and equipment of the same compartments floating easiest to metal waste restriction, also gas cutting with the capture of the resulting aerosol is separated from the non-radioactive structures and equipment floating technical base, cut waste on the slipway to the mass and size corresponding to the geometric characteristics of the furnace DC to 800 kg for the smelting of radioactive metal waste, place waste in decontaminated containers for low-level radioactive waste, transport them from the slipway to the furnace, located on the territory of the shipyard move waste from the container into the oven, perform the melting of cut metal waste without exposure of the metal in the liquid state, but with the translation of removable radioactive contamination inside the liquid metal, the pouring of the metal from the furnace into the mold, solidification of metal waste in the form of ingots, inside of which the translated surface contamination, level of activity, corresponding to the established normative values for radioactivity in solid wastes restriction defined by the radiation monitoring devices, place the bars in the decontaminated containers for low-level waste is transported ingots to the landfill for industrial waste what I industrial waste in warehouses, when the melt reduces the free volume of waste 4 times enables the removal of removable radioactive contamination on the inside of the ingot metal, reducing the impact of ionizing radiation on personnel, population and environment - and-emitters due to uniform distribution of radionuclides by volume of the ingot and their Samotechnaya, on the same ground place the metal bars with a level of activity below the level of low level nuclear solid waste received by the facility with exposure in liquid-phase state of low level nuclear waste, removal of volatile radionuclides, store ingots, obtained by melt metal waste without exposure of the metal in the liquid state at the landfill for industrial waste for 50 years for the natural decrease in their activity due to disintegration of the contained radionuclides, then the metal waste is transported in decontaminated containers for low-level radioactive waste at the site of the dockyard to the same furnace is replaced with the lining, put the waste into the furnace, smelting metal waste restriction, reducing their total specific activity of up to 0.15 kBq/kg (specific activity material, below which opasnosti (OSPORB-99), M., the Russian Ministry of health, 2000, S. 54), after radiation monitoring ingots are sent to the steel plant as scrap metal, the resulting low level nuclear slag placed in containers for low-level waste, some containers, 'low-level' filters furnace for melting of radioactive waste is placed in barrels, pressed, (claim cement mortar, brew barrel, place in containers for low-level waste transport containers with low level nuclear slag and containers barrels with utverzhdennym cement mortar 'low-level' filters store low level nuclear waste, remove the barrel from containers for low-level radioactive waste, place brewed containers with slag and barrels with utverzhdennym cement mortar 'low-level' filters in the repository for low level nuclear waste.

Example 7. Same as example 6, but on the stocks post subject dismantling nuclear-powered submarine, her reactor compartment is separated from the other compartments, using the known method of gas cutting of large-sized objects, including activated and contaminated, also gas cutting with the capture of the resulting aerosol is e level low level nuclear solid waste - and emitters related to metal waste restriction, adjacent to the reactor compartments of nuclear submarines, cut waste on the slipway to the mass and size of 200-liter barrels, place them in barrels, put waste in barrels in containers for low-level radioactive waste, transport them from the slipway to the press, located on the site of the site of the dockyard, pressed the barrel of the hydraulic pressure - supercompaction 60 MPa, translating removable radioactive contamination in the volume of waste, including the bottom, the cover and the deformed wall of the barrel, place pressed "barrels tablets in containers for low-level waste, some containers may be transported pressed metal waste with specific activity corresponding to the established normative values for radioactivity in solid wastes limited use, which is defined by the radiation monitoring devices, place waste in containers for low-level waste to the landfill for industrial waste off-site shipyard, place the containers at the landfill for industrial waste in warehouses when pressing reduce Sunnah "barrels-tablets" with additional protection brewed containers, reducing the impact of ionizing radiation on personnel, population and environment - and-emitters due to the uneven distribution of radionuclides by volume "barrels-tablets" and Samotechnaya and shielding protection containers, metal wastes are stored at the industrial waste landfill for 30 years for the natural decrease in their activity due to disintegration of the contained radionuclides, then the metal waste is transported in the same container at the area of the industrial site of the dockyard to the furnace for melting the radioactive metal waste capacity of 600 kg for smelting, gas cutting open the sealed container, put waste in barrels-tablets" into the furnace, smelting metal waste restriction, reducing their total specific activity of up to 0.2 kBq/kg, after radiation monitoring ingots are sent to the steel plant as scrap metal, the resulting slag with a specific activity below the level of low level nuclear solid waste is placed in containers for low-level radioactive waste, pressed slag in containers, some containers with slag - solid waste limited modulating the level radioactive filters furnace for melting of radioactive waste is placed in barrels, pressed in barrels, brew barrel, place the barrel with compressed filters in containers for level radioactive waste, brewed containers, transport containers at the store level radioactive waste, post brewed containers with filters in barrels with level radioactive filters in store for level radioactive waste.

Of the invention, the joint General inventive concept, applicable to the treatment of metal waste restriction, their applicability is based on the experience accumulated during the processing of solid metal waste restriction with decreased levels of radioactivity, still exceeding the regulated level of specific activity from which waste can be used without restrictions on the radioactivity of the treated waste can be sent for storage to the landfill for industrial waste off-site nuclear facility, with a reduction of free volume at 5 to 95%, in particular, and disposed of after a natural reduction of the specific activity during storage of waste at the landfill during 20-300 years, or deposited initially solid metal waste mining is aemula radioactive contamination or destruction of, including inside the waste within 3-150 years, then the processing of the waste to the level of specific activity, which can be stored without restrictions on radioactivity, also with a possible reduction of the free volume of waste at 5-95%, waste disposal natural reduction of radioactivity in the landfill, waste treatment, in particular.

1. Method for the treatment of solid metal waste specific activity of solid waste restriction, including removing them from removable radioactive contamination, processing the waste to the level of the total specific activity, comprising 0.5 to 98.5% of the lower level of the specific activity of solid low level nuclear waste above the level of the total specific activity from which waste can be used without restrictions on radioactivity, waste disposal at the landfill for industrial waste off-site nuclear facility, waste storage at the site.

2. The method according to p. 1, which reduces the free volume of waste at 5-95% before placing them on the ground.

3. The method according to p. 1 or 2, in which is disposed the waste after the natural reduction of radioactivity on the ground.

the use including the fixation of removable radioactive contamination on their surface, placement of waste at the landfill for industrial waste off-site nuclear facility, storage of waste at the landfill, waste processing up to the level of total specific radioactivity, which can be stored without restrictions on radioactivity.

5. The method according to p. 4, which is additionally fixed with a removable radioactive contamination in waste processing.

6. The method according to p. 4 or 5, in which is disposed the waste after the natural reduction of radioactivity in the landfill, waste treatment.

7. Method for the treatment of solid metal waste specific activity of solid waste restriction, including the removal of their removable radioactive contamination, waste disposal at the landfill for industrial waste off-site nuclear facility, storage of waste at the landfill, waste processing up to the level of total specific radioactivity, which can be stored without restrictions on radioactivity.

8. The method according to p. 7, which reduces the free volume of waste at 5-95%.

9. The method according to p. 7 or 8, in which is disposed the

 

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SUBSTANCE: compaction involves cutting members into fragments using electroerosive destruction of member wall by pulse spark-arch discharges emerging between member and electrode. In addition, high-temperature treatment in oxidizing medium, in particular vapor formed, is carried out. Cutting and heat treatment are accomplished in water.

EFFECT: simplified procedure and increased safety.

3 cl

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