Reprocessing and recycling of low level contaminated scrap coming from decommissioning and back fitting

Conference · Wed Jan 01 04:00:00 EST 1986 · Nucl. Mater. Manage. Annu. Meet. Proc.; (United States)

OSTI ID:5094850

Sappok, M

At Siempelkamp foundry, FR Germany, a process was developed for recycling of low level contaminated metallic scrap from nuclear plants. The melting process was developed in cooperation with the German authorities. After several tests a license was given for melting under surveillance conditions. The maximum allowed activity to be handled is 74 Bq/g. During the melting process the furnace is completely closed by a filter system while charging by a special device, so that in the space above the melt theres is always low pressure. Possibly got free activity during melting is lead to the filter system. Special investigations have been made on the behaviour of radionuclides like Co, Cs, Ce, Ag, Eu, Zn during melting. A partial decontamination effect could be demonstrated. The melted steel is used to produce components being needed for the nuclear facilities, so the material remains in the nuclear circuit and no activity comes to the population.

• Research Organization: Siempelkamp Giesserei GmbH and Co., Managing Director, D-4150 Krefeld
• OSTI ID: 5094850
• Report Number(s): CONF-860654-
• Conference Information: Journal Name: Nucl. Mater. Manage. Annu. Meet. Proc.; (United States) Journal Volume: 15
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTIVITY LEVELS
ALKALI METAL ISOTOPES
ALLOYS
CASKS
CERIUM ISOTOPES
CESIUM ISOTOPES
CLEANING
COBALT ISOTOPES
CONTAINERS
DECOMMISSIONING
DECONTAMINATION
ELEMENTS
EUROPE
EUROPEAN COMMUNITIES
FEDERAL REPUBLIC OF GERMANY
FURNACES
INTERNATIONAL ORGANIZATIONS
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LICENSING
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MELTING
METALS
MONITORING
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PHASE TRANSFORMATIONS
POWER PLANTS
PRESSURE DEPENDENCE
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RARE EARTH ISOTOPES
REACTOR COMPONENTS
REACTOR DECOMMISSIONING
RECYCLING
SCRAP
SCRAP METALS
SHIELDING
SILVER ISOTOPES
SOLID WASTES
STEELS
THERMAL POWER PLANTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WESTERN EUROPE
ZINC ISOTOPES