Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants
The article presents the distribution coefficient (K<sub>d</sub>) values of <sup>137</sup>Cs and <sup>90</sup>Sr tracer radionuclides in solutions of sodium and calcium salts for a wide range of commercially available inorganic sorbents: natural and synthetic alum...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/11/3/126 |
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| author | Natalya A. Nekrasova Vitaly V. Milyutin Victor O. Kaptakov Evgeny A. Kozlitin |
| author_facet | Natalya A. Nekrasova Vitaly V. Milyutin Victor O. Kaptakov Evgeny A. Kozlitin |
| author_sort | Natalya A. Nekrasova |
| collection | DOAJ |
| description | The article presents the distribution coefficient (K<sub>d</sub>) values of <sup>137</sup>Cs and <sup>90</sup>Sr tracer radionuclides in solutions of sodium and calcium salts for a wide range of commercially available inorganic sorbents: natural and synthetic aluminosilicates, manganese, titanium and zirconium oxyhydrates, titanium and zirconium phosphates, titanosilicates of alkali metals, and ferrocyanides of transition metals. The results were obtained using a standard technique developed by the authors for evaluating the efficiency of various sorption materials towards cesium and strontium radionuclides. It was shown that bentonite clays and natural and synthetic zeolites are the best for decontaminating low-salt natural water from cesium radionuclides, and ferrocyanide sorbents are the choice for decontaminating high-salt-bearing solutions. The manganese (III, IV) oxyhydrate-based MDM sorbent is the most effective for removing strontium from natural water; for seawater, the barium silicate-based SRM-Sr sorbent is the first-in-class. Results of the study provide a possibility of making a reasonable choice of sorbents for the most effective treatment of natural water and technogenic aqueous waste contaminated with cesium and strontium radionuclides. |
| first_indexed | 2024-03-11T06:23:34Z |
| format | Article |
| id | doaj.art-e9c6be353014458e9abfd184c98ed4dd |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-11T06:23:34Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-e9c6be353014458e9abfd184c98ed4dd2023-11-17T11:45:21ZengMDPI AGInorganics2304-67402023-03-0111312610.3390/inorganics11030126Inorganic Sorbents for Wastewater Treatment from Radioactive ContaminantsNatalya A. Nekrasova0Vitaly V. Milyutin1Victor O. Kaptakov2Evgeny A. Kozlitin3Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (IPCE RAS), Bld. 4, 31 Leninsky Prospect, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (IPCE RAS), Bld. 4, 31 Leninsky Prospect, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (IPCE RAS), Bld. 4, 31 Leninsky Prospect, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (IPCE RAS), Bld. 4, 31 Leninsky Prospect, 119071 Moscow, RussiaThe article presents the distribution coefficient (K<sub>d</sub>) values of <sup>137</sup>Cs and <sup>90</sup>Sr tracer radionuclides in solutions of sodium and calcium salts for a wide range of commercially available inorganic sorbents: natural and synthetic aluminosilicates, manganese, titanium and zirconium oxyhydrates, titanium and zirconium phosphates, titanosilicates of alkali metals, and ferrocyanides of transition metals. The results were obtained using a standard technique developed by the authors for evaluating the efficiency of various sorption materials towards cesium and strontium radionuclides. It was shown that bentonite clays and natural and synthetic zeolites are the best for decontaminating low-salt natural water from cesium radionuclides, and ferrocyanide sorbents are the choice for decontaminating high-salt-bearing solutions. The manganese (III, IV) oxyhydrate-based MDM sorbent is the most effective for removing strontium from natural water; for seawater, the barium silicate-based SRM-Sr sorbent is the first-in-class. Results of the study provide a possibility of making a reasonable choice of sorbents for the most effective treatment of natural water and technogenic aqueous waste contaminated with cesium and strontium radionuclides.https://www.mdpi.com/2304-6740/11/3/126cesium and strontium radionuclidesliquid radioactive wasteradioactively contaminated aqueous streamsdecontamination |
| spellingShingle | Natalya A. Nekrasova Vitaly V. Milyutin Victor O. Kaptakov Evgeny A. Kozlitin Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants Inorganics cesium and strontium radionuclides liquid radioactive waste radioactively contaminated aqueous streams decontamination |
| title | Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants |
| title_full | Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants |
| title_fullStr | Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants |
| title_full_unstemmed | Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants |
| title_short | Inorganic Sorbents for Wastewater Treatment from Radioactive Contaminants |
| title_sort | inorganic sorbents for wastewater treatment from radioactive contaminants |
| topic | cesium and strontium radionuclides liquid radioactive waste radioactively contaminated aqueous streams decontamination |
| url | https://www.mdpi.com/2304-6740/11/3/126 |
| work_keys_str_mv | AT natalyaanekrasova inorganicsorbentsforwastewatertreatmentfromradioactivecontaminants AT vitalyvmilyutin inorganicsorbentsforwastewatertreatmentfromradioactivecontaminants AT victorokaptakov inorganicsorbentsforwastewatertreatmentfromradioactivecontaminants AT evgenyakozlitin inorganicsorbentsforwastewatertreatmentfromradioactivecontaminants |