초록 ▼

In order to prevent the formation of a hydrogen atmosphere in a free gas space usually available in the storage containers of radioactive waste, potassium permanganate is dispersed in a suitable carrier within the storage barrel provided for the waste. When the radioactive waste is first encased in

In order to prevent the formation of a hydrogen atmosphere in a free gas space usually available in the storage containers of radioactive waste, potassium permanganate is dispersed in a suitable carrier within the storage barrel provided for the waste. When the radioactive waste is first encased in cement before being put in a storage barrel, the potassium permanganate is introduced into the cement before it sets by mixing in a solution or crystals. Alternatively the compressed or solidified waste is enveloped in a porous non-reducing aggregate of carrier materials, such as particles of aluminum oxide, on the exposed surfaces of which potassium permanganate is applied or which is mixed with potassium per manganate particles. The waste and the enveloping permanganate-containing carrier material are then securely enclosed in a common container.

대표청구항 ▼

Method of storing radioactive waste material in which waste material is solidified or pressed and then sealed in a container, comprising the steps of: introducing a content of potassium permanganate into a nonreducing packing and enveloping material for said waste material, said packing and envelopi

Method of storing radioactive waste material in which waste material is solidified or pressed and then sealed in a container, comprising the steps of: introducing a content of potassium permanganate into a nonreducing packing and enveloping material for said waste material, said packing and enveloping material being composed of at least one material which is a member of the group consisting of cement and other concrete-forming materials and granular and pulverized aluminum oxide, grog, fire-clay and other ceramics, and thereby producing a permanganate-containing packing and enveloping material in which potassium permanganate is dispersed for eliminating hydrogen generated by said waste material during storage, and enveloping said radioactive waste material in a mass of said permanganate-containing packing and enveloping material within a common long-term storage container.