US 12,176,120 B2 · Method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes

Abstract

The present invention provides a method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes. According to the chemical composition characteristics of incineration ashes of combustible solid wastes such as glass fibers, cotton, plastic, rubber and absorbent paper produced during the operation of nuclear facilities, the present invention takes the glass fibers as a glass matrix of combustible waste incineration ashes and minimizes the addition of an additive by a combination in different proportions through a synergistic treatment method. A vitrified form provided by the present invention meets the requirements of uniformity, density, impact resistance, chemical durability and the like of radioactive waste vitrified forms.

Claims9

Dependent claims

A method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes, comprising the following steps of:

incinerating a combustible solid nuclear waste to obtain ashes, wherein the combustible solid nuclear waste is at least one member selected from the group consisting of cotton, plastic, rubber and absorbent paper;
and
mixing the glass fibers, the ashes and an additive in proportion to prepare a mixed waste vitrified form,
wherein the glass fibers, the ashes and the additive are in proportion as follows:
5 wt % to 90 wt % of the glass fibers,
10 wt % to 90 wt % of the ashes, and
not more than 10 wt % of the additive,
a total content of the glass fibers, the ashes and the additive is 100 wt %, and
the glass fibers, the ashes and the additive are proportioned in terms of oxides.

6 more elements

Dependencies are inferred from the claim text.

Method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes

Life of this patent

Method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes

Life of this patent

Abstract

Claims9