ヘッダー画像

Radiation associated hypothyroidism (Scientific review)

Title: Radiation associated hypothyroidism (Scientific review)

Author: Tsyb A.F., Matveenko E.G., Nestaiko G.B., Gorobets V.F.

Reference: Journal “РАДИАЦИЯ И РИСК” No.10 1997

ISSN: 0131-3878

Keywords: hypothyroidism、external and internal radiation

Abstract:  The authors analyse current concepts of mechanisms of development, diagnostic methods and indicators of radiogenic risk of hypothyroidism due to exposure of thyroid tissue to external and internal radiation.

URL: http://elibrary.ru/item.asp?id=9950800

Method of removing radioactive contamination from operational oil

Author: E.P. Larin, V.N. Chvatov, A.G. Petrov, A.V. Soldatkin, S.V. Gribanenkov

Reference: Patent, 27.01.1999, Sosnovyi Bor patent holder: State enterprise Leningrad Nuclear Power Plant named after V.I. Lenin

Keywords: liquid waste, treatment, potassium cobalt ferrocyanide

Abstract: The present invention relates to the field of disposal of radioactive waste from nuclear plants, in particular to radioactive waste liquid. The method consists of heating the oil, of alkaline potassium permanganate, and ferrocyanide collector to 80oC, in volume ratio of the two being 0.5:5:0 (collector:oil), with formation of coagulant and subsequent separation of radioactive sludge. As ferrocyanide collector, 1. potassium cobalt ferrocyanide or 2. mixture of potassium nickel ferrocyanide and potassium cobalt ferrocyanide can be used.

URL: http://www.findpatent.ru/patent/212/2125745.html

Method of treating alpha-active nitrogenous acid solutions, containing trivalent (ferric) iron

Author: O.M. Slyunchev, D.E. Rezchikov

Reference: Patent, 27.10.2004, Ozersk patent holder: Mayak Production Association

Keywords: liquid waste, treatment, evaporation

Abstract: The invention relate to treatment of liquid radioactive wastes. The method consists of preliminary evaporation of the solution with obtainment of regenerated nitric acid and distillation residue. Then, neutralization of the distillation residue to pH1~2, and partial reduction of ferric iron, using sodium sulfite, to mixed valence state of Fe3+:Fe2+=2:1, are conducted.   

URL: http://www.findpatent.ru/patent/225/2257626.html

Method of solidifying radioactive and other hazardous wastes

Author: A.G. Anshits, T.A. Vereshagina, E.N. Voskresenskaya, E.M. Kostin, V.F. Pavlov, Yu.A. Revenko, A.A. Tretyakov, O.M. Sharonova, A.S. Aloi, N.V. Sapozhnikova, D.A. Knecht, T.D. Trenter, E. Macheret

Reference: Patent, 10.10.2002, Krasnoyarsk patent holder: Institute of chemistry and chemical technology (RAS), Mining and chemical combine, V.G. Khlopin Radium Institute

Keywords: liquid waste, solidification

Abstract: Summary of invention: for solidification of liquid radioactive wastes, porous glass-ceramic blocks are applied, which is formed from hollow glass-ceramic microsphere, extracted from the fly ash from combustion of fossil fuels. The block operates as a sponge and is characterized by a high value of open porosity of uniform pore structure.

URL: http://www.findpatent.ru/patent/219/2190890.html

Method of cleaning soil surface contaminated by strontium 90 and cesium 137

Author: A.M. Kropachev, I.I. Kropachev

Reference: Patent, 15.12.2004, Perm patent holder: Perm State University

Keywords: soil, cesium 137, strontium 90, chemical treatment, plants

Abstract: The method of cleaning consists of infusion of chemical materials into the soil. Topsoil is covered by limestone or dolomite flour (5-6 tons per hectare), with potash KCl, KNO3 or KMgCl 3.6 H2O in an amount of not less than 200 kg per hectare. This process is followed by plantation of mixture of perennial grasses, which are mowed in autumn and placed in storage, precluding the migration of radionuclides.

URL: http://www.findpatent.ru/patent/227/2278428.html

Nano-sized colloidal-steady sorbent for decontamination of bulk solids, and methods for decontaminating the bulk solids with its use

Author: S.Yu. Bratskaya, V.A. Avramenko, V.I. Sergienko, Yu.P. Korchagin, A.M. Egorin

Reference: Patent, Vladivostok, 27.12.2009,  patent holder: Institution of the Russian Academy of Sciences, Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences

Keywords: colloidally-stable nanosorbent, decontamination, soil

Abstract: The invention relates to environmental protection, namely, to the decontamination of soil, ground, sand, ion-exchange resins, slag and other solid granular wastes. It can be applied in nuclear power plants, radio-chemical industries, and territories affected by anthropogenic catastrophe and accidental spills of liquid radioactive waste. The colloid-resistant nano sorbent for decontamination of solid granular materials comprises reaction product, combined with an equivalent amount of cations from the group of transition metals and hexacyanoferrate anion, which are precursors of sorbent formed among stable carboxyl polymer colloid.

URL: http://www.findpatent.ru/patent/240/2401469.html

Method of treating radiation-contaminated metallic and graphite waste of uranium-graphite nuclear reactors

Author: V.A. Chemezov, R.S. Karimov

Reference: Patent, 24.05.2010, Ekaterinburg patent holder: Sverdlovsk Research Institute of Chemical Engineering

Keywords: treatment, metal, graphite, flux

Abstract: The invention is aimed to be used in nuclear power plants, nuclear industries and points of radioactive waste disposal. The treatment includes loading of the contaminated metallic waste and flux into the furnace, melting of metallic waste and removing of the melt and slag flux from the furnace. Before loading the waste and the flux into the furnace, layer of radioactively contaminated graphite is loaded and it is ignited in oxidizing medium, generated by the plasma of plasma torch furnace. Then, plasma torch is turned off and the fragmented metallic waste is loaded into the furnace, downward, from top to bottom, alternately by each layer.

URL: http://www.findpatent.ru/patent/243/2435241.html

Methods of removing radionuclide cesium from soil

Author: I.A. Sobolev, L.B. Prozorov, N.I. Komarova, T.V. Molchanova

Reference: Patent, 10.07.2000, 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: cesium, soil, decontamination, hydrofluoric and / or fluosilicic acid

Abstract: The invention relates to environmental protection and is aimed to be used for decontamination of soil from radionuclide cesium. Technical results: expansion of the scope, as well as increase of extent, speed and security of implementation. For the decontamination an aqueous solution is applied. The solution is a mixture of oxalic acid concentration, of at least 0.5 M, and water soluble ammonium, potassium or sodium salt of hydrofluoric and / or fluosilicic acid.

URL: http://www.findpatent.ru/patent/215/2152650.html

Cleaner

Author: V.P. Glinsky, T.N. Krutikova, B.V. Matseyevich, S.V. Menzelenko, V.D. Mikhailov, N.V. Sagarda, N.M. Sorokin

Reference: Patent, 20.01.2003, Krasnoarmeisk patent holder: Krasnoarmeisk Scientific Research Institute of Mechanization

Keywords: decontamination, skin, hair, laundry, surfaces

Abstract: The invention relates to field of medicine, in detail, to cleaner for hygienic purposes. It is meant to clean skin and hair of the human body, laundry in the rinsing step and surfaces of various materials. The cleaner contains trilon B, water, lactoserum, ascorbic or citric or salicylic acid, in the following component ratio, wt. %: lactoserum: 3.0~6.0, ascorbic or citric or salicylic acid: 0.1~0.5, trilon B: 0.1~0.5, water: the rest. In addition, the cleaner may contain the followings: humate, mineral acid, glycols and surfactants.

URL: http://www.findpatent.ru/patent/219/2196567.html

Method of decontaminating radiation-doped silicon

Author: O.G. Chernikov, E.K. Gorbunov, L.V. Shmakov, K.G. Kudrayvtsev, K.V. Grigoryev, G.A. Chumachenko, V.I. Zaika, A.N. Fursov

Reference: Patent, 08.16.2006, Sosnovyi Bor patent holder: The Federal State unitary enterprise ‘Russian state concern for generation of electric and thermal power at nuclear power plants’ (Rosenergoatom)

Keywords: silicon, decontamination, alkaline solution, sodium hydroxide

Abstract: The invention relates to decontamination of radiation-exposed silicon and can be applied in industrial production of power reactors. During sequential two-step process with oxidative alkaline solution, containing sodium hydroxide, and solution of oxalic acid in both steps, oxidizing solutions based on hydrogen peroxide are utilized. The second stage is conducted not later than 5÷30 minutes after the first one.

URL: http://www.findpatent.ru/patent/233/2332732.html

▲ページの先頭へ戻る