Method for noncontaminating solidification for final storage of aqueous, radioactive waste liquids

US4363757A · kind A · utility

Assignee

• Kernforschungszentrum Karlsruhe GmbH · DE

Inventors

• Rainer Koster · Karlsruhe, DE
• Günter Rudolph · Jork, DE
• Rainer Gebauer · Bamberg, DE
• Iris Boch · Bretten, DE
• Wilfried Schroter · Karlsruhe, DE
• Jurgen Jakobs · Bruchsal, DE

Key dates

• Filing date: Apr 30, 1979
• Grant date: Dec 14, 1982
• Expiry date: Apr 30, 1999

Classification

• Technology area (CPC G): Physics
• CPC primary: G21F9/165
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for solidifying medium radioactive aqueous waste liquids, low radioactive aqueous waste liquids, and aqueous waste liquids containing tritium for final non-contaminating storage. The waste liquids are first mixed with absorbing agents, e.g., clay-like substances, hydraulic binders or mixtures thereof, to form granules or pellets of the same. The granules or pellets are then embedded with a binder which is initially present in a liquid state and later hardens. However, granules or pellets formed from medium radioactivity aqueous waste liquids or waste liquids containing tritium compounds are first clad in a first binder and thereafter embedded for final solidification with a second binder.