Cel THE OBJECTIVE OF THIS RESEARCH IS TO DEVELOP AN ELECTROPOLISHING TECHNIQUE FOR THE DECONTAMINATION OF LARGE STAINLESS STEEL SURFACES IN FLOODED SYSTEMS WITHOUT LOSS OF ELECTROLYTE. THE SCOPE OF THE PROGRAMME INVOLVES ESSENTIALLY: - THE IMPLEMENTATION OF A CLOSED LOOP SYSTEM ABLE TO ELECTROPOLISH LARGE STAINLESS STEEL SURFACES WITHOUT LOSS OF ELECTROLYTE; - THE DEVELOPMENT OF VARIOUS ELECTROPOLISHING CATHODES WITH ELECTROLYTE RINSAGE SYSTEM FOR UNDERWATER USE; - THE UNDERWATER APPLICATION OF THIS TECHNIQUE TO CONTAMINATED SURFACES. THIS RESEARCH IS DIRECTED MAINLY AT REACTOR CAVITIES AND FUEL STORAGE POOLS OF LWRS, WHICH NEED DECONTAMINATION IN MAINTENANCE AS WELL AS IN DECOMMISSIONING. ELECTROPOLISHING IS ABLE TO DECONTAMINATE COMPLETELY THE STAINLESS STEEL SURFACE ENABLING IT TO BE TREATED AFTERWARDS AS CONVENTIONAL SCRAP, REDUCING THUS THE AMOUNT OF WASTE GENERATED DURING THE DECOMMISSIONING WORK. B.1.- DEVELOPMENT OF THE CLOSED ELECTROPOLISHING SYSTEM FOR UNDERWATER REMOTE OPERATIONS INCLUDING THE STUDY OF VARIOUS TYPES OF CATHODE. B.2.- CONSTRUCTION OF A SELECTED SYSTEM. B.3.- UNDERWATER TESTING ON NON-RADIOACTIVE SURFACES (STAINLESS STEEL AISI 304 AND 316 AND WELDING JOINTS) WITH DIFFERENT ROUGHNESS, AT A WATER DEPTH UP TO 20 M. B.4.- UNDERWATER APPLICATION TO CONTAMINATED SURFACES OF NUCLEAR INSTALLATIONS INCLUDING DETERMINATION OF THE DECONTAMINATION FACTORS. B.5.- ASSESSMENT OF THE ARISINGS AND THE TREATMENT OF SECONDARY WASTE, AND EVALUATION OF THE COST AND RADIOLOGICAL CONSEQUENCES OF THE DECONTAMINATION. Dziedzina nauki engineering and technologyenvironmental engineeringenergy and fuels Program(-y) FP1-DECOM 2C - Research programme (Euratom) concerning the decommissioning of nuclear installations, 1984-1988 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator Equipos Nucleares SA Wkład UE Brak danych Adres 28006 Madrid Hiszpania Zobacz na mapie Koszt całkowity Brak danych
