Conditioning highly radioactive solidified waste

US3971717A · kind A · utility

Assignee

• Gesellschaft fur Kernforschung m.b.H. · DE

Inventors

• Werner Hild · Deggendorf, DE
• Helmut Krause
• Knut Scheffler · Blankenloch, DE
• Hans Gusten
• Ernst Gilbert
• Rainer Koster · Karlsruhe, DE

Key dates

• Filing date: May 27, 1975
• Grant date: Jul 27, 1976
• Expiry date: May 27, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2101/006
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Solid radioactive waste is incorporated in glass, ceramic or basaltic blocks which are conditioned in waste waters or sludges prior to placement in ultimate storage. The conditioning has the dual benefit of reducing the radioactivity of the radioactive waste and of purifying the waste water or of purifying and facilitating the filterability of the sludge. Such purifying is enhanced by concurrent treatment with oxygen or an oxygen-containing gas and/or with a substance which is readily reduced to radicals.