タグ「radioactive waste disposal」
Author: V.N. Epimakhov, M.S. Oleinik, T.V. Epimakhov, V.V. Trofimov
Reference: Patent, 01.12.2009 patent holder: State enterprise scientific-research centre of technology named after A.P. Aleksandrov
Keywords: liquid waste, cementing
Abstract: The invention relates to treatment of liquid radioactive waste. In a container, with non-radioactive cement compound, which plays the role of radiation shield, a filter with selective sorbent is installed. After establishing the resource of the filter, which is not aimed to be regenerated, with protection (filter-container) on disposal through the filter with selective sorbents, a thin Portland-cement slurry, with water cement ration not less than 10 percent, is pumped for cementing the monolith of the exhausted sorbent.
URL: http://www.findpatent.ru/patent/241/2410779.html
Author: S.V. Podoinitsin, S.I. Bychkov, G.A. Kravchenko, S.G. Bakhvalov, M.G. Vasilyev, B.M. Lapshin
Reference: Patent, 28.09.2001 patent holder: Mining and Chemical Combine (Krasnoyarsk region)
Keywords: metallic waste, decontamination, melting
Abstract: The series of invention relates to the decontamination of metallic materials contaminated by radionuclides. The processing includes melting of the waste beneath the layer, above which there is an intensive recycling flow overheated in gaslift flow of slag. Thus the slag is separated from the melted metal.
URL: http://www.findpatent.ru/patent/223/2234154.html
Author: V.N. Epimakhov, E.B Pankina, M.S. Oleinik, T.V. Epimakhov
Reference: Patent, 27.05.2001, Moscow patent holder: State enterprise scientific-research centre of technology named after A.P. Aleksandrov
Keywords: liquid waste, decontamination
Abstract: The invention relates to technology for treating liquid radioactive waste, with method of concentration, sorptive purification and cementing. Results: decrease of volume of buried solidified waste, increase of their water resistance and reduce of growth of concentration of the liquid waste.
URL: http://www.findpatent.ru/patent/216/2168221.html
Author: L.F. Gorovoi, V.N. Kosyakov, G.I. Kuznetsov, A.A. Pushkov, L.I. Shklyar
Reference: Patent, 20.04.2001, Moscow patent holder: L.F. Gorovoi, V.N. Kosyakov, G.I. Kuznetsov, A.A. Pushkov, L.I. Shklyar
Keywords: liquid waste cleaning, sorption
Abstract: The invention relates to radiochemistry, namely to the cleaning of liquid radioactive wastes. Provides a method of continuous countercurrent sorption process, with separation of solid and liquid phases, in a cascade of one-stage centrifugal sorption, installed horizontally.
URL: http://www.findpatent.ru/patent/216/2165284.html
Author: L.V. Shmakov, Yu.V. Garusov, V.M. Tishkov, V.I. Cheremiskin, G.A. Lenisov, A.V. Chernikin, G.M. Lemberg
Reference: Patent, 10.03.2001, patent holder: State enterprise Leningrad Nuclear Power Plant named after V.I. Lenin, Closed Joint Stock Company Scientific-Production Association “Energoatominvent”
Keywords: liquid waste, decontamination, evaporation
Abstract: The invention relates to nuclear technology. The method consists of evaporation of liquid waste in evaporators, cooling of condensate of secondary vapor, purification and its desalination through filter. Part of the desalted condensate – the unbalanced water – is concentrated, being repeatedly passed through cooling towers and heat exchanger. Then radionuclides are removed in bypass treatment.
URL:http://www.findpatent.ru/patent/216/2164045.html
Author: R.A. Penzin, E.A. Belyakov, A.A. Shvedov, O.V. Evdokimov, S.N. Pichugin
Reference: Patent, 20.09.1998, Moscow patent holder: R.A. Penzin
Keywords: liquid waste, decontamination, cesium, strontium, reverse osmosis, distillation
Abstract: Usage: chemical technology, specifically in the nuclear environment, the processing of liquid radioactive waste (LRW) resulting from the operation of various atomic power plants. Stepwise processing of liquid waste, containing cesium and strontium, is conducted in the following sequence:
>Pre-treatment stage: mechanical cleaning, ultrafiltration, microfiltration
>Passing through selective inorganic sorbent, based on ferrocyanide of transitional metal of copper, nickel, cobalt and porous inorganic carrier, then subjected to desalting and concentration using one of the following methods:
1. distillation
2. two-step method: first step: usage of reverse osmosis or electro-demineralization, second step: distillatory or electroosmotic concentration.
URL: http://www.findpatent.ru/patent/211/2118945.html
Author: V.A. Babain, R.N. Kiseleva, A.A. Murzin, V.N. Romanovsky, V.A. Starchenko, I.V. Smirnov, A.Yu. Shadrin
Reference: Patent, 10.06.2001, Moscow patent holder: V.G. Khlopin Radium Institute
Keywords: waste, decontamination, supercritical solvent
Abstract: The invention relates to treatment of radioactive wastes. The matrix, contaminated by radionuclides, is kept in a chamber with high pressure, within supercritical solvent, in the presence of water, organic acid and complexone. After soaking, pumping of chamber, with supercritical carbon dioxide, is conducted for the sake of complete extraction, then the extracted metal is collected into the solution.
URL: http://www.findpatent.ru/patent/216/2168779.html
Author: V.A. Lekomtsev
Reference: Patent, 10.03.2003, St. Petersburg patent holder: I.K. Meshkovsky
Keywords: decay products, decontamination
Abstract: This invention can be applied for decontamination of radioactive waste, mainly for decay products of a nuclear reactor. The decontamination is processed through technogenic transmission of radionuclides.
URL: http://www.findpatent.ru/patent/220/2200353.html
Author: R.A. Penzin, V.C. Sheptunov, B.M. Lesokhin, V.K. Bulygin, S.V. Petrov
Reference: Patent, 27.05.1998, Moscow patent holder: R.A. Penzin
Keywords: liquid waste, treatment, filtration, cesium, strontium
Abstract: Usage: chemical technology, specifically in the nuclear environment, the processing of liquid radioactive waste (LRW) resulting from the operation of various atomic power plants. Stepwise processing of liquid waste, containing cesium and strontium, is conducted in the following sequence:
>Pre-treatment stage: mechanical cleaning, ultrafiltration, microfiltration
>Passing through selective inorganic sorbent, based on ferrocyanide of transitional metal of copper, nickel, cobalt and porous inorganic carrier
> Passing through reverse osmosis module, at salt concentrations of 1 g / l, in one step. The second step of the same, with flows divided into concentrate and permeate, is then subjected to post-treatment by passing through a sorbent selected from the group of:
synthetic zeolite of type “A”, chabazite of hexagonal structure or natural zeolite of monoclinic structure, which are used as a modified zeolite “CM-SELEX.”
URL:http://www.findpatent.ru/patent/211/2112289.html
Author: V.I. Lebedev, L.V. Shmakov, V.M. Tishkov, V.I. Cheremisky, S.V. Gribanenkov, V.D. Fedotov
Reference: Patent, 27.08.1999, patent holder: State enterprise Leningrad Nuclear Power Plant named after V.I. Lenin
Keywords: liquid waste, treatment, evaporation
Abstract: The invention relates to technique for treating liquid radioactive waste, containing surfactants, using evaporation. The invention reduces the foaming of liquid waste 2~4 times. …
URL. http://www.findpatent.ru/patent/213/2136065.html
