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The Institute of Nuclear Physics

Ministry of Energy of the Republic of Kazakhstan

Deactivating agent “Dezaktiv”

Application area – designed as deactivating detergent for cleaning a variety of surfaces from radioactive contaminants, including:

  • human skin
  • interior and exterior surfaces of buildings, structures, premises
  • equipment and means of production
  • vehicles
  • jobs in emergency situations

Mode of application

In order to clean the skin surface from dirt about 3g of “Dezaktiv” powder means(one teaspoon) needs to be applied to the palm, then a small amount of warm water needs to be added and then rubbed uniformly across the contaminated surface for a minute. The resulting rich foam needs to be washed with water after 1 min and then the next portion of the decontamination powder is applied. After 2 minutes of grinding powder and foam washing hands need to be wiped dry and value of the residual pollution needs to be measured . If necessary, the process with new “Dezaktiv” portions means needs to be repeated, but the overall duration of the washing of the skin shall not exceed 10 minutes.

In order to process an outer surface of other objects around 10g (3 teaspoons) of detergent needs to be applied to the wet rag and then rubbed uniformly across the contaminated equipment surfaces. The resulting foam needs to be rinsed with water and then re-treated with the next portion of the decontamination powder. Then, after the equipment processing and foam washing is complete, the equipment needs to be wiped dry and with the help of radiometric control the amount of residual radioactivity can be determined. If necessary, the process with new “Dezaktiv” portions means needs to be repeated.

 

“Dezaktiv” agent’s indicators of its decontaminating properties
IndexUnit values
Decontamination factor(%)19,0±1,0
Deactivate capacity, gE./l5,6
Versatility of removable radionuclidesAlpha, beta-emitting radionuclides
Versatility of the use of methodsOnly the surface (external) application
Operating temperature range, °С5 – 40
Relative volume of liquid radioactive wasteWastes refer to low-active radioactive wastes