Drinking water decontamination from radionuclides using domestic filters and filters based on granulated glauconite

This work presents a comparative study of sorption characteristics of two cheap and available domestic jug filters for water decontamination “Aquafor” and “Barrier-4” as well as a modelling filter containing granulated glauconite with the zirconium dioxide binding addition (Gl-Gr-ZrO2) as a sorption...

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Bibliographic Details
Main Authors: Zenkova, K. I., Nedobukh, T. A., Kutergin, A. S.
Format: Conference Proceeding
Language:English
Subjects:
Cesium
Cesium 137
Cesium isotopes
Comparative studies
Contamination
Decontamination
Drinking water
Granulation
Low level
Norms
Quality standards
Radioactive wastes
Radioisotopes
Sorption
Strontium 90
Water hardness
Water purification
Water quality
Zirconium dioxide
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Summary:This work presents a comparative study of sorption characteristics of two cheap and available domestic jug filters for water decontamination “Aquafor” and “Barrier-4” as well as a modelling filter containing granulated glauconite with the zirconium dioxide binding addition (Gl-Gr-ZrO2) as a sorption material. It was determined that both domestic jug filters can be recommended for decontamination of drinking water containing 137Cs or 90Sr; the maximal volume of water is 50–100 L depending on contamination level. Use of the Gl-Gr-ZrO2 sorbent in preliminary filter allowed increasing resource up to 7000 and 1000 bed volumes for cases of cesium and strontium elimination respectively. Also, this filter provided higher decontamination factors (>100 for 137Cs and >10 for 90Sr) allowing for decontamination of water with higher contamination levels. The results of calculation of activity concentrations of the spent filters have shown that the spent filters should be utilized as very low level solid radioactive waste in accordance with the respective sanitary regulations after decontamination of radioactive water. The additional tests have shown that the filter with granulated glauconite allowed saving the hardness and pH value of drinking water within the quality standards being regulated by sanitary norms and rules for drinking water.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5055194