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AbstractAbstract
[en] The heavy water was purified by tapping off part of the moderator over a mixed bed of anion and cation exchangers. The heavy water leaving the columns has a resistivity reaching several-meg-ohms, which allows the resistivity of the moderator to be maintained between 105 and 106 ohms/cm. Two methods of deuteration of the ion exchangers are described, as well as the heavy water recuperation from resins charged with radioactive products. The influence of the purity of the water on the radiolytic dissociation is investigated. An interpretation of the variations in pH and of the formation of hydrogen peroxide is given. In addition the report contains a general description of the EL1 and EL2 purification installations. (author)
[fr]
L'epuration de l'eau lourde a ete effectuee en derivant une partie du moderateur sur un lit melange d'echangeurs d'anions et de cations. Les colonnes delivrent de l'eau lourde dont la resistivite atteint plusieurs megohms; ceci permet d'entretenir la resistivite du moderateur entre 105 et 106 ohms/cm. Deux procedes deuteriation des echangeurs d'ions sont decrits de meme que la recuperation de l'eau lourde partir des resines chargees de produits radioactifs. L'influence de la purete de l'eau sur sa dissociation radiolytique est etudiee. Une interpretation est donnee des variations de pH et de la formation d'eau oxygenee. Le rapport comprend en outre une description generale des installations d'epuration de EL1et EL2. (auteur)Original Title
Purification par resines echangeuses d'ions de l'eau lourde des reacteurs EL1 et EL2. A - conduite de la purification. Installations et resultats
Primary Subject
Secondary Subject
Source
1957; 50 p; 10 refs.
Record Type
Report
Report Number
Country of publication
CARBON DIOXIDE COOLED REACTORS, CASKS, CHARGED PARTICLES, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, CHLORINE COMPOUNDS, CONTAINERS, COOLING SYSTEMS, DECOMPOSITION, DEUTERIUM COMPOUNDS, ELECTRIC CONDUCTIVITY, ELECTRICAL PROPERTIES, ENERGY SYSTEMS, EXPERIMENTAL REACTORS, GAS COOLED REACTORS, HALIDES, HALOGEN COMPOUNDS, HEAVY WATER COOLED REACTORS, HEAVY WATER MODERATED REACTORS, HYDROGEN COMPOUNDS, ION EXCHANGE MATERIALS, IONS, IRRADIATION REACTORS, ISOTOPE PRODUCTION REACTORS, MATERIALS, NATURAL URANIUM REACTORS, ORGANIC COMPOUNDS, ORGANIC POLYMERS, OXYGEN COMPOUNDS, PEROXIDES, PETROCHEMICALS, PETROLEUM PRODUCTS, PHYSICAL PROPERTIES, POLYMERS, PRIMARY COOLANT CIRCUITS, RADIATION EFFECTS, REACTOR COMPONENTS, REACTOR COOLING SYSTEMS, REACTORS, RESEARCH AND TEST REACTORS, RESEARCH REACTORS, TANK TYPE REACTORS, THERMAL REACTORS, WATER
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