摘要:
Provided is a technique for solidifying radioactive waste, which enables stable final disposal of a large amount of radioactive waste with a simple process. A method for producing a solidified body of radioactive waste includes: a step (S11) of retrieving radioactive waste generated at a nuclear power plant or a nuclear related facility, a step (S12) of pressurizing radioactive nuclides contained in the radioactive waste along with an inorganic adsorbent and thereby forming a molded body; and a step (S13) of firing the molded body and thereby forming a solidified body.
摘要:
Gegenstand der Erfindung ist ein Sorptionsmittel umfassend Aktivkohle und eine Imprägnierung der Aktivkohle zur Sorption von Luftschadstoffen, wobei die Imprägnierung aufweist eine Zink-Verbindung und eine Molybdän-Verbindung und ein gasfiltrierendes Element, wie einen Atemschutzfilter, aufweisend das Sorptionsmittel.
摘要:
The invention discloses a preparation method for a filter element capable of swiftly and high efficiently absorbing Cs, including the following procedures: modifying a substrate material with ammonium phophomolybdate; spinning a filament from the modified substrate material and molding the spinned filament to a filter element; coating ammonium phophomolybdate on the surface of the filter element; and implementing an aging and stabilization process. The filter element prepared by this invention exhibits an excellent water permeability, oxidization resistance, long-term immersion at water temperatures 100 °C, radiation-proof decomposition, stable absorption, swift inspection, high efficiency and precision; stable Cs measurement is not needed to confirm the absorption rate.
摘要:
The invention discloses a preparation method for a filter element capable of swiftly and high efficiently absorbing Cs, including the following procedures: modifying a substrate material with ammonium phophomolybdate; spinning a filament from the modified substrate material and molding the spinned filament to a filter element; coating ammonium phophomolybdate on the surface of the filter element; and implementing an aging and stabilization process. The filter element prepared by this invention exhibits an excellent water permeability, oxidization resistance, long-term immersion at water temperatures 100 °C, radiation-proof decomposition, stable absorption, swift inspection, high efficiency and precision; stable Cs measurement is not needed to confirm the absorption rate.
摘要:
A multilayer composite for reversible sorption of mercury, with a carrier core made of a metal or an alloy based on transition metals, has isolating layers of a transition metal nitride and externally located sorptive layers, made of a mixture of sulfides and nitrides of transition metals, the layers being deposited on both sides of the core. A method for sorption of mercury from a gaseous phase during an exposition of the multilayer composite to the influence of multicomponent gaseous mixtures that contain mercury vapors or compounds for a time period of 0.5 to 24 hours, while the temperature of the multilayer composite is maintained in the range from 20 to 150° C.
摘要:
A disposal method for a radioactive substance adsorbent includes: a mixing step (S1) mixing a clay mineral and the radioactive substance adsorbent, the radioactive substance adsorbent containing ferrocyanide; a pressing step (S2) press molding the radioactive substance adsorbent and the clay mineral which have been mixed in the mixing step (S1); and a heating step (S3) heating the radioactive substance adsorbent and the clay mineral which have been press molded in the pressing step (S2).