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Content archived on 2024-04-15

THE TREATMENT OF RADIOACTIVE EFFLUENTS OF PWR - NUCLEAR POWER PLANTS BY CENTRIFUGATION.

Objective

THE OBJECTIVE OF THIS STUDY IS TO DEVELOP A TREATMENT SYSTEM FOR THE RADIOACTIVE WASTE SOLUTIONS WHICH ARE NOT RECOVERED OF THE TIHANGE NUCLEAR POWER PLANT. THE ACTIVITY SHOULD BE ABSORBED ON A SOLID PHASE WHICH WILL BE SEPARATED FROM THE LIQUID BY CENTRIFUGATION. THE PROCEDURE SHOULD BE APPLIED TO ALL TYPES OF LIQUID WASTES EXCEPT THE PRIMARY EFFLUENTS FROM WHICH BORIC ACID IS RECOVERED AND WHICH IS TREATED BY EVAPORATION.

THIS PROGRAM CAN BE SEEN AS THE CONTINUATION OF A PREVIOUS STUDY ON A CONTINUOUS FLOCULATION AND SETTLING SYSTEM IN THE NUCLEAR STATION OF CHOOZ.

THE CENTRIFUGATION SHOULD LEAD TO A MORE COMPACT SYSTEM. BEFORE THE CENTRIFUGATION A BATCH TYPE FLOCULATOR WILL BE USED. THIS SYSTEM SEEMS TO BE MORE FLEXIBLE AND ADAPTABLE TO DIFFERENT WASTE TYPES. IT COULD ALSO DECREASE THE AMOUNT OF REAGENTS AND HENCE THE AMOUNT OF SLUDGE.

SYSTEMATIC ANALYSIS OF THE EFFLUENTS IN UNIT 2 OF TIHANGE.
STUDY OF A PROCEDURE TO PRECIPITATE CO-58 AND CO-60.
CHARACTERISATION OF THE FLOCS.
INFLUENCE OF CHEMICAL COMPOSITION ON THE FLOCULATION.
CENTRIFUGATION TESTS.
INFLUENCE OF THE OPTIMAL CONDITIONS FOR A CONTINUOUS CENTRIFUGATION SYSTEM.
CONTROL OF THE GRAIN SIZE OF PARTICLES TO BE ELIMINATED.
PILOT PLANT TESTS ON SEVERAL EFFLUENTS.

Topic(s)

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Call for proposal

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Coordinator

Laborelec - Laboratoire Belge de l'Industrie S.c.r.l.
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125,Rodestraat
1630 Linkebeek
Belgium

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