REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT
Phosphate-induced metal stabilization (PIMS) using apatite stabilizes uranium in situ, by chemically binding it into the new low-solubility (Ksp=10-49) phase. Uranium-phosphate-autunite is stable across a wide range of geological conditions for millions of years. A large area of contaminated soil is...
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| Format: | Article |
| Language: | English |
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Association of the Chemical Engineers of Serbia
2008-11-01
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| Series: | Chemical Industry and Chemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://www.ache.org.rs/CICEQ/2008/No4/13_3027_2008.pdf |
| _version_ | 1828239002908491776 |
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| author | M. Stojanović M. Grubišić D. Stevanović J. Milojković D. Ileš |
| author_facet | M. Stojanović M. Grubišić D. Stevanović J. Milojković D. Ileš |
| author_sort | M. Stojanović |
| collection | DOAJ |
| description | Phosphate-induced metal stabilization (PIMS) using apatite stabilizes uranium in situ, by chemically binding it into the new low-solubility (Ksp=10-49) phase. Uranium-phosphate-autunite is stable across a wide range of geological conditions for millions of years. A large area of contaminated soil is suitable for insitu remediation that involves minimizing the mobility of the uranium. Laboratory study was conducted to quantify different forms of apatite sequestration of uranium contaminant. The experiment was done with natural phosphate from Lisina deposit (14.43 % P2O5), with non-treated samples, phosphate concentrate samples with 34.95 % P2O5 and mechanochemically activated of natural apatite. Different concentration of P2O5 in apatite, pH, reaction time, solid/liquid ratio was investigated. The concentrate at pH 5.5 for 7 days sorbed around 93,64 % and nature apatite, with 14,43 % P2O5, for 30 days sorbed 94.54 % of the uranium from the water solution, concentration 100 μg U/ml. The results show that mineral apatite “Lisina” is very effective for the treatment of contaminated soils - in situ immobilization of U. Mechanochemical activation of natural apatite in vibration mill immobilized 85.37 % of uranium in the 7-day period of acting. This research on natural apatite from the deposit “Lisina” for immobilization of uranium was the first one of this type in our country. |
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| id | doaj.art-ac2b4bcddbc64d8a994ddc56c7296c9f |
| institution | Directory Open Access Journal |
| issn | 1451-9372 |
| language | English |
| last_indexed | 2024-04-12T21:15:21Z |
| publishDate | 2008-11-01 |
| publisher | Association of the Chemical Engineers of Serbia |
| record_format | Article |
| series | Chemical Industry and Chemical Engineering Quarterly |
| spelling | doaj.art-ac2b4bcddbc64d8a994ddc56c7296c9f2022-12-22T03:16:29ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722008-11-01144265267REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENTM. StojanovićM. GrubišićD. StevanovićJ. MilojkovićD. IlešPhosphate-induced metal stabilization (PIMS) using apatite stabilizes uranium in situ, by chemically binding it into the new low-solubility (Ksp=10-49) phase. Uranium-phosphate-autunite is stable across a wide range of geological conditions for millions of years. A large area of contaminated soil is suitable for insitu remediation that involves minimizing the mobility of the uranium. Laboratory study was conducted to quantify different forms of apatite sequestration of uranium contaminant. The experiment was done with natural phosphate from Lisina deposit (14.43 % P2O5), with non-treated samples, phosphate concentrate samples with 34.95 % P2O5 and mechanochemically activated of natural apatite. Different concentration of P2O5 in apatite, pH, reaction time, solid/liquid ratio was investigated. The concentrate at pH 5.5 for 7 days sorbed around 93,64 % and nature apatite, with 14,43 % P2O5, for 30 days sorbed 94.54 % of the uranium from the water solution, concentration 100 μg U/ml. The results show that mineral apatite “Lisina” is very effective for the treatment of contaminated soils - in situ immobilization of U. Mechanochemical activation of natural apatite in vibration mill immobilized 85.37 % of uranium in the 7-day period of acting. This research on natural apatite from the deposit “Lisina” for immobilization of uranium was the first one of this type in our country.http://www.ache.org.rs/CICEQ/2008/No4/13_3027_2008.pdfuraniumremediationapatitephosphate concentrate |
| spellingShingle | M. Stojanović M. Grubišić D. Stevanović J. Milojković D. Ileš REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT Chemical Industry and Chemical Engineering Quarterly uranium remediation apatite phosphate concentrate |
| title | REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT |
| title_full | REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT |
| title_fullStr | REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT |
| title_full_unstemmed | REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT |
| title_short | REMEDIATION OF THE SERBIAN SOILS CONTAMINATED BY RADIONUCLIDES IN THE FUNCTION OF THE SUSTAINABLE DEVELOPMENT |
| title_sort | remediation of the serbian soils contaminated by radionuclides in the function of the sustainable development |
| topic | uranium remediation apatite phosphate concentrate |
| url | http://www.ache.org.rs/CICEQ/2008/No4/13_3027_2008.pdf |
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