Tubular filter

Author: F.A. Lifanov, V.A. Gorbunov, M.A. Polkanov, N.V. Savenkov

Reference: Patent, 27.09.2002, 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: gas, radiation dust, decontamination

Abstract: The invention relates to the purification of gases from radioactive dust.

Summary of invention: tubular filter contains corps, camera with gas, containing dust, and a removable camera with purified gas, separated by tubular lattice. The camera with gas, containing dust, has an inlet pipe, a dust hopper with dust discharging hopper and a device for tensioning the tube.

URL: http://www.findpatent.ru/patent/219/2190271.html

Methods for decontaminating surface dirt items from metal alloys or its fragments

Author: V.E. Tikhomirov, D.V. Tikhomirov

Reference: Patent, 17.08.2011, Moscow, patent holder: V.E. Tikhomirov

Keywords: metal decontamination, reduce waste, high efficiency

Abstract: The invention is related to methods for chemical decontamination of metal contaminated by radionuclides. The method of decontaminating surface of metal alloy, or its fragments, consists of application of reagent containing potassium, sodium and sulfur, subsequent heating of surface, its cooling, and purification from formed oxide scale. The invention improves the efficiency of the decontamination process, also reducing the time of deactivation and the amount of radioactive waste.

ＵＲＬ：http://www.findpatent.ru/patent/247/2474899.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

Reference: Patent, Vladivostok, 11.1.2010,  patent holder: Institution of the Russian Academy of Sciences, Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences

Keywords: colloidally-stable nanosorbent, strontium, soil

Abstract: Decontamination of radio-strontium. The proposed colloidally-stable nano sorbent represents reaction product combined with an equivalent amount of calcium cations, or a mixture of barium and sulfate anions in a medium stable emulsion of copolymers of acrylic acid with a particle size of not more than 500 nm. The new nanosorbent is a mobile-selective sorbent, for decontamination of radionuclides strontium, capable, due to its small size of the particles, of penetrating into the pore space of soil, providing efficient extraction of radionuclides.

URL: http://www.findpatent.ru/patent/242/2427419.html

Veterinary-health assessment of decontaminated meat, structurally contaminated by radionuclide cesium and strontium

Author: A.S. Mashkov

Reference: Dissertation, candidate of veterinary sciences, Moscow, 2006

Keywords: meat, decontamination, ionization, accumulation

Abstract: The aim of the work is to carry out veterinary-sanitary examination and biological evaluation of meat contaminated structurally by mixture of cesium, strontium and various methods of deactivation.

URL: http://www.dissercat.com/content/veterinarno-sanitarnaya-otsenka-dezaktivirovannogo-myasa-strukturno-zagryaznennogo-radionukl

Obtainment and properties of surfactant-modified sorbents for the removal of cesium

Author: E.V. Nogovytsina

Reference: Dissertation, 2002 (published in Ekaterinburg, 2011)

Keywords: radiation liquid waste, decontamination, cesium, sorption

URL: http://library.gpntb.ru/cgi-bin/irbis64r_simplesite/cgiirbis_64.exe

Developing measuring systems for radiometric separation of radioactively contaminated soil

Author: A.S. Danilovich

Reference: Dissertation, 2001

Keywords: radioactive waste, contamination, decontamination, safety

URL: http://library.gpntb.ru/cgi-bin/irbis64r_simplesite/cgiirbis_64.exe

The method of decontaminating soil from radionuclide 137cs

Author: Chirkst D.Е., Chaliyan K.N., Chaliyan A.G.

Reference: Patent, 10.12.1995 patent holder: K.N. Chaliyan

Abstract: The inventive method consists of treatment of contaminated soil with an aqueous solution, containing inorganic ammonium salt and uncomplexed inorganic iron salt, wherein the pH of the aqueous solution is 2-3. The treatment is carried out at a weight ratio of solution and soil 12,5-41,5. The degree of desorption of 137Cs after the treatment is 70-80% 1 table. …

ＵＲＬ：http://www.findpatent.ru/patent/205/2050029.html

Dynamics of radiostrontium leaching from radioactively contaminated floodplain soils of the Yenisei River (English)

Author: E. K. Legin, Yu. I. Trifonov, M. L. Khokhlov, D. N. Suglobov, E. E. Legina, V. K. Legin

Reference: Gazette “Radiochemistry“, 2008

ISSN:

DOI: 10.1134/S1066362208010177

Keywords: strontium, decontamination, waterlogged soils, 90sr, 137cs, river

Abstract: Gleyzation-mediated leaching of radiostrontium from floodplain soils of the Krasnoyarsk Mining and Chemical Combine (MCC) activity zone [Atamanovskii Island (front part), Oseredysh Island (front part), and Berezovyi Island (rear part)] is studied with model systems. Leaching of radiostrontium from waterlogged soils is analyzed in terms of the model of anaerobic biosolubilization of gel films. The leaching of radiostrontium is found to correlate with that of iron, confirming the cosolubilization model. Addition of glucose (0.5%) as a stimulant for growth of iron-reducing microorganisms increases the dynamic coefficient of radiostrontium leaching, particularly in soils with lower organic matter content. The model experiments showed that the radiostrontium leaching rate from floodplain soil is higher by 2–3 orders of magnitude than that of radio-cesium, suggesting the possibility of escape of radiostrontium from the floodplain of the Yenisei River with the intrasoil runoff. This conclusion is supported by the experimental data on the 90Sr/137Cs ratio in the floodplain of the Yenisei River downstream of MCC (0.01–0.1).

URL: http://link.springer.com/article/10.1134%2FS1066362208010177?LI=true#

DEVICE FOR WATER PURIFICATION

Author:  Neganov O.V., Neganova M.A., Silantev A.M., Silantev S.A., Jakovenko G.B.

Reference: patent of invention, 1999

ISSN:                                             

DOI:

Keywords: decontamination of water, radionuclides

Abstract: FIELD: devices for water cleaning from radionuclides, bacterial, virus and other contaminants in presence of magnetic fields. SUBSTANCE: device has successively connected by means of magnetic pipes magnetic funnel with track membrane, dropping tubes-filters with magnets and ion-exchange resins, and modular electrode unit with selective sorbent of thermoxid grade in magnetic body. EFFECT: production of elocogically clean potable water with efficient trapping of radionuclides. 1 dwg

URL: http://elibrary.ru/item.asp?id=17518084

On the way to solution of the problem of radioactive waste remediation

Author: Goryachev I. V., Gnedenko V. G., Kuznetsov V. D.

Reference: Gazette “АЛЬТЕРНАТИВНАЯ ЭНЕРГЕТИКА И ЭКОЛОГИЯ“ (alternative energetics and ecology) , 2006

ISSN: 1608-8298

Keywords: remediation, decontamination, Kurcharov Institute

Abstract: A short article on remediation of radioactive waste. The author Goryachev and Gnedenko are members of the Kurcharov Institute, Russia’s leading research centre of nuclear energy. In the Soviet regime the institute was a centre for developing nuclear weapons. Most soviet nuclear reactors were built under the surveillance of the institute.

URL: http://isjaee.hydrogen.ru/pdf/5_2006gnedenko_rus.pdf (full article available)