Treatment of contaminated metal waste originating from dismantling NPPs in a special melting plant

Conference · Tue Jan 01 00:00:00 EST 1991 · Nuclear Materials Management. Annual Meeting Proceedings; (United States)

OSTI ID:5466169

Sappok, M ^[1]; Pflugrad, K ^[2]

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1. Siempelkamp Giesserei GMBH and Co., Krefeld (DE)
2. Commission of the European Communities, Brussels (Belgium)

This paper reports that during 1984 to 1989 in Germany the process of melting radioactive scrap was assessed within the frame of research contracts, sponsored by European Community. Up to now more than 3500 tons of low level contaminated scrap ({le}200 Bqlg) have been melted and recycled. The scrap which was shipped to the plant, had about 95% of Co 60 and Cs 137 activity. In the average the ratio between Co and Cs was 60 : 40. This might be different for scrap in other NPP's, especially in NPP's which had no bigger damage on fuel elements, the Cs contents should be lower. Cs quantitatively was found in slag and filter dust, whereas cobalt remained in the ingot. In 1989, a separate and modernized facility was erected, taking into consideration the results from the previous tests. The maximum activity level to be handled is 200 Bqlg. In this new plant 2000 tons have been treated up to now.

• OSTI ID: 5466169
• Report Number(s): CONF-910774-; CODEN: NUMMB
• Journal Information: Nuclear Materials Management. Annual Meeting Proceedings; (United States), Vol. 20; Conference: 32. Institute of Nuclear Materials Management (INMM) annual meeting, New Orleans, LA (United States), 28-31 Jul 1991; ISSN 0362-0034
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
22 GENERAL STUDIES OF NUCLEAR REACTORS
RADIOACTIVE MATERIALS
RECYCLING
REACTOR DISMANTLING
SCRAP METALS
CESIUM 137
COBALT 60
CONTAMINATION
EUROPEAN COMMUNITIES
GERMANY
MELTING
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
COBALT ISOTOPES
DEMOLITION
ELEMENTS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
INTERNATIONAL ORGANIZATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATERIALS
METALS
MINUTES LIVING RADIOISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHASE TRANSFORMATIONS
RADIOISOTOPES
SCRAP
SOLID WASTES
WASTES
YEARS LIVING RADIOISOT
YEARS LIVING RADIOISOTOPES
052001* - Nuclear Fuels- Waste Processing
220900 - Nuclear Reactor Technology- Reactor Safety