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タグ「radioactive waste disposal」

Method for treatment of radioactive metallic waste – Furnace for its implementation

Author: M.G. Vasilyev, S.G. Bakhvalov, Z.V. Pulikova, N.N. Yegorov, B.M. Lapshin, V.M. Vasilyev

Reference: Patent, 10.05.2000, Krasnoyarsk patent holder: M.G. Vasilyev, S.G. Bakhvalov, Z.V. Pulikova, N.N. Yegorov, B.M. Lapshin, V.M. Vasilyev

Keywords: metallic and liquid waste, exhaust gas

Abstract: Invention for the treatment of metallic and liquid radioactive waste. This method consists of melting the metallic radioactive waste, in the presence of refining slag with immersion of metallic radioactive waste into the melt. The method also includes removal and cleaning of its exhaust gases.

URL: http://www.findpatent.ru/patent/214/2148865.html

Reactor for catalytic deactivation of organic waste containing radionuclides

Author: Z.R. Ismagilov, M.A. Kerzhentsev, V.N. Korotkikh, B.I. Lunyushkin, Yu.V. Ostrovsky

Reference: Patent, 27.05.1999, Novosibirsk patent holder: Institute of Catalysis named after G.K. Boreskova, Russian Academy of Sciences

Keywords: organic waste, incineration deactivation, nuclear cycle

Abstract: The invention relates to deactivation of organic wastes containing radionuclides, and can be used at nuclear cycle. The reactor is designed for deactivation by incinerating mixed waste, containing organic substances, carbon, radioactive materials and a significant amount of water.

URL: http://www.findpatent.ru/patent/213/2131151.html

Device for decontaminating radioactive liquid waste

Author: N.I. Burangulov, A.I. Plugin

Reference: Patent, 27.07.1998, patent holder: St. Petersburg Academy of Engineering

Keywords: liquid waste, process

Abstract: The invention relates to process radioactive liquid waste.

URL: http://www.findpatent.ru/patent/211/2116680.html

Process for treatment and neutralization of radioactive middling and/or disposal of industrial waste

Author: Yu.P. Kudryavsky, Yu.F. Trapeznikov, V.F. Bekker, A.V. Belkin

Reference: Patent, 27.05.2003, Moscow patent holder: Research-and-production company of environment “Eco-Technology”

Keywords: middling, industrial waste, neutralization

Abstract: The invention relates to metallurgy and can be used for neutralization of radioactive middlings and / or production waste. Summery: After dissolving middlings and / or industrial waste, method of processing the resulted product is established, using milk of lime, then we separate hydrated precipitate, and inject the mother liquor into the barium chloride and sulfuric acid at the following ionized ratios: SO4 2-/Ba2 + = 1-6 and Ca2 + / Ba2 5.

URL: http://www.findpatent.ru/patent/220/2205461.html

Apparatus for vitrification of radioactive waste containing ion exchange resin

Author: I.A. Sobolev, S.A. Dmitriev, F.A. Lifanov, A.P. Kobelev, A.E. Savkin, V.N. Zakharenko, V.I. Kornev, O.A. Knyazev

Reference: Patent, 10.07.1998, Moscow patent holder: Moscow State Enterprise – Joint Environmental-Technological Research Center for the disposal of radioactive waste and the protection of the environment (SIA “Radon”)

Keywords: vitrification, liquid waste, ion exchange resins

Abstract: The invention relates to liquid waste treatment and is intended for vitrification of homogeneous and heterogeneous mixtures of liquid radioactive waste containing ion exchange resins.

URL: http://www.findpatent.ru/patent/211/2115182.html

Methods of chemical deactivation of surface of metal articles, contaminated with radioactive materials

Author: I.M. Kosareva, M.K. Savushkina, N.N. Egorov, H.S. Yanovskaya, S.V. Savushkin, A.N. Egorov, M.E. Poroifov

Reference: Patent, 17.06.1999, Moscow patent holder: I.M. Kosareva, M.K. Savushkina, N.N. Egorov, H.S. Yanovskaya, S.V. Savushkin, A.N. Egorov, M.E. Poroifov

Keywords: metal, decontamination, liquid

Abstract: The invention relates to nuclear technology, especially chemical decontamination of radioactive-contaminated substances from products made of steel, non-ferrous metals and their alloys. Treatment at 20 ~ 95oC for 1 – 24 hours with an aqueous decontaminating solution, containing carboxylic acid, for which acidic wastes of production of caprolactam is used.

URL: http://www.findpatent.ru/patent/213/2132579.html

SORPTIVE BLOCK FOR REMOVAL OF LIQUID RADIOACTIVE WASTE

Author: R.A. Penzin, A.S. Borisov, A.N. Pantyukhin, V.P. Tarasov

Reference: Patent, 10.01.1998, US patent holder: R.A. Penzin, A.S. Borisov

Keywords: liquid radioactive waste, disposal

Abstract: The invention relates to chemical engineering, specifically to the nuclear ecology, and can be used in the treatment of liquid radioactive waste resulting from the operation of various atomic power units, such as nuclear power plants and vehicles (nuclear-powered icebreakers, submarines, floating NPP. In the process of the nuclear power cycle, various types of liquid radioactive waste are produced, which later must be processed, with a view to their subsequent disposal, in a compact solid form.

URL: http://www.findpatent.ru/patent/210/2101072.html

Processing and decontamination of radioactive waste with chlorinating loparite concentrate

Author: O.V. Rakhimova

Reference: Dissertation, candidate of technical sciences, Moscow, 2012

Keywords: waste processing method

Abstract: Aim of the work: To improve efficiency of processing and decontamination of radioactive waste. To complete the subject, the following are to be considered:

  1. an analysis of the formation of solid and liquid radioactive waste with chlorinating loparite  concentrates; to analyze the distribution of radionuclides on products, intermediate products and recycled waste with loparite concentrates;
  2. to select reagent-precipitator and to define the conditions, which reduce the mass of the secondary waste to be buried;
  3. to examine the conditions of decontamination as industrial solutions, and their dependence on the basic technological factors…

URL:http://www.mitht.ru/files/21212003/23052012_1.pdf (full dissertation available online)

Physico-chemical basis of reagent decontamination of soils contaminated with α-emitters

Author: Yu.G. Sklifasovskaya

Reference: Dissertation, candidate of chemical sciences, Moscow, 2012

Keywords: solid waste, processing waste, storage

Abstract: In the Russian Federation there are still radioactively contaminated sites, and measures for their rehabilitation are included in the federal program “Nuclear Radiation Safety of Russia for the period between 2008 and 2015.” A significant portion of solid waste, annually entering specialized enterprises, constitutes of low-level soil materials removed during decontamination works. In connection with this, an important task is the development of technologies and methods for processing the incoming waste, to reduce the amount of storage (I.A. Sobolev, Vladimir Kulichenko, S. Dmitriev, etc.)…

URL: http://tekhnosfera.com/fiziko-himicheskoe-obosnovanie-reagentnoy-dezaktivatsii-gruntov-zagryaznennyh-izluchatelyami

Hydrogeological influences on radionuclide migration from the major radioactive waste burial sites at Chernobyl (A review)

Title: Hydrogeological influences on radionuclide migration from the major radioactive waste burial sites at Chernobyl (A review)

Author: Dgepo, S.P. / Skalsky, A.S. / Bugai, D.A. / Marchuk, V.V. [Inst. of Geological Sciences, Kiev (Ukraine)] / Waters, R.D. [Sandia National Labs., Albuquerque, NM (United States)]

Reference: Mar 1994

doi: 10.2172/10135061

Keywords: Radioactive waste disposal, Ukraine, radionuclides, hydrogeology

Abstract: This paper summarizes the recent hydrogeological investigations of several research organizations on waste confinement at the major radioactive waste (RW) burial sites immediately adjacent to the Chernobyl Nuclear Power Plant (Ch. NPP). Hydrogeological conditions and radiologic ground-water contamination levels are described. Ongoing ground-water monitoring practices are evaluated. The chemical and physical characteristics of the radionuclides within the burial sites are considered. Ground water and radionuclide transport modeling studies related to problems of the RW disposal sites are also reviewed. Current concerns on future impacts of the RW burial sites on the hydrological environment and water resources of the Ch.NPP area are discussed.

URL: http://www.osti.gov/bridge/product.biblio.jsp?query_id=2&page=0&osti_id=10135061

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