METHOD FOR DECONTAMINATION OF A LIQUID EFFLUENT INCLUDING ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY TREATMENT IN A FLUIDIZED BED
The invention relates to a method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated including the following steps: a step of bringing into contact in a stirred fluidised bed, in a first zone of a reactor, of the said liquid effluent with so...
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Format | Patent |
Language | English |
Published |
01.12.2011
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Abstract | The invention relates to a method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated including the following steps: a step of bringing into contact in a stirred fluidised bed, in a first zone of a reactor, of the said liquid effluent with solid particles able, by coprecipitation and/or adsorption and/or ion exchange, to capture and retain the said radioactive chemical element or elements, as a result of which a suspension of solid particles is obtained containing the said radioactive chemical element or elements; a step of settling, of the said suspension, in a second zone of the same reactor, where this second zone is separate from the first abovementioned zone, as a result of which a solid phase is obtained including the solid particles containing the said radioactive chemical element or elements to be eliminated, and a liquid phase with a reduced or zero content of the said radioactive chemical element or elements to be eliminated; and a step of separation of the said solid phase and of the said liquid phase. |
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AbstractList | The invention relates to a method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated including the following steps: a step of bringing into contact in a stirred fluidised bed, in a first zone of a reactor, of the said liquid effluent with solid particles able, by coprecipitation and/or adsorption and/or ion exchange, to capture and retain the said radioactive chemical element or elements, as a result of which a suspension of solid particles is obtained containing the said radioactive chemical element or elements; a step of settling, of the said suspension, in a second zone of the same reactor, where this second zone is separate from the first abovementioned zone, as a result of which a solid phase is obtained including the solid particles containing the said radioactive chemical element or elements to be eliminated, and a liquid phase with a reduced or zero content of the said radioactive chemical element or elements to be eliminated; and a step of separation of the said solid phase and of the said liquid phase. |
Author | MUHR HERVE COHIN OLIVIER PACARY VINCENT PLASARI EDOUARD JAUBERT CERE CLAIRE BARRE YVES |
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Snippet | The invention relates to a method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated including the... |
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SubjectTerms | CHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT SEPARATION TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
Title | METHOD FOR DECONTAMINATION OF A LIQUID EFFLUENT INCLUDING ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY TREATMENT IN A FLUIDIZED BED |
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