A radionuclide detergent compounded with nano-inorganic materials and alkyl glycosides and its application method

Abstract

The invention discloses a nano inorganic material and alkyl glycoside compounded radionuclide decontaminant as well as a use method thereof. The decontaminant comprises the following components in parts by weight: 0.5-2 parts of an alkyl glycoside surfactant, 0.1-2 parts of a nano inorganic material additive, 1-5 parts of a chelating agent, 1-5 parts of a corrosion inhibitor, 1-5 parts of a solubilizer, 0.1-1 part of a foam stabilizer and 71-94.4 parts of water and further comprises 0.2-1 part of an anionic surfactant, 0.1-0.5 part of a dispersant, 1-5 parts of an inorganic salt electrolyte, 0.1-0.5 part of a preservative and 0.5-2 parts of a thickener. The use method comprises the step of stirring the mixed components in parts by weight at a high speed to obtain the foam decontaminant. By adopting environment-friendly alkyl glycoside as a foaming agent and simultaneously adding the nano inorganic material which is relatively strong in adsorption capacity and flocculating ability, the nano inorganic material is simple in preparation process, good in radionuclide decontamination effect, free of corrosion on solid surfaces, easily degradable under illumination and less in secondary pollution. The nano inorganic material can be used for defoaming and is convenient to defoam.

Description

technical field [0001] The invention relates to a radionuclide decontamination agent, in particular to a radionuclide decontamination agent compounded by nano inorganic materials and alkyl glycoside surfactants. Background technique [0002] The decontamination technologies of nuclear facilities mainly include chemical decontamination, mechanical decontamination, electrochemical decontamination and biological decontamination. Chemical decontamination has a large amount of waste liquid, damages the surface of the object, and takes a long time. Mechanical decontamination requires that the surface of the contaminated workpiece can be touched, and it is easy to generate airborne dust. The effect of electrochemical decontamination is better than that of chemical decontamination, but it is harmful to materials. Greater corrosion, slower biological decontamination. [0003] The foam decontamination method produces less secondary waste, can clean blind holes, crevices and places th...

AI Technical Summary

Problems solved by technology

However, the decontamination efficiency of existing foam detergents is low, and the foam after decontamination is difficult to defoam, which has a certain impact on the treatment of nuclides in the subsequent solution, such as evaporation and filtration.

In addition, acid solution can be used to defoam the foam, but the acid solution has a certain corrosive effect on the equipment, and the waste liquid is difficult to handle after decontamination, and the radionuclides in the waste liquid are difficult to separate and enrich

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