Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique
The aim of this study was to investigate the effect of natural zeolite amendment to contaminated soil on the heavy metal (Cd, Cr, Cu, Pb and Zn) simulated bioavailability over a three-month period of storage. Two pot experiments were created by amending soil with two different amounts of natural zeo...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/3/321 |
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| author | Marin Senila Oana Cadar Lacrimioara Senila Bogdan Simion Angyus |
| author_facet | Marin Senila Oana Cadar Lacrimioara Senila Bogdan Simion Angyus |
| author_sort | Marin Senila |
| collection | DOAJ |
| description | The aim of this study was to investigate the effect of natural zeolite amendment to contaminated soil on the heavy metal (Cd, Cr, Cu, Pb and Zn) simulated bioavailability over a three-month period of storage. Two pot experiments were created by amending soil with two different amounts of natural zeolite (3 and 6 wt.%). During the experiment, pH level, metal concentrations in soil solution (C<sub>sol</sub>) and metal concentrations in soil by the diffusive gradients in thin-films technique (C<sub>DGT</sub>) were determined. When the zeolite was added to the soil, a significant decrease (<i>p</i> = 95%, <i>n</i> = 3) for Cd and Pb concentrations, both in C<sub>sol</sub> and in C<sub>DGT</sub>, was observed. The Cu, Cr and Zn concentrations also showed a decreasing trend, but the changes in their concentrations were not statistically significant. The R ratio between C<sub>DGT</sub> and C<sub>sol</sub> was calculated for each metal in order to assess the resupply of metals from the soil solid phase to soil solution. The R values significantly decreased for Cd and Pb, showing a low resupply from the solid phase in the samples with added zeolite. |
| first_indexed | 2024-03-09T13:55:02Z |
| format | Article |
| id | doaj.art-6fd152e2827f452d81ec5910d9b8b677 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T13:55:02Z |
| publishDate | 2022-02-01 |
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| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-6fd152e2827f452d81ec5910d9b8b6772023-11-30T20:42:56ZengMDPI AGAgriculture2077-04722022-02-0112332110.3390/agriculture12030321Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) TechniqueMarin Senila0Oana Cadar1Lacrimioara Senila2Bogdan Simion Angyus3Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, RomaniaResearch Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, RomaniaResearch Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, RomaniaResearch Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, RomaniaThe aim of this study was to investigate the effect of natural zeolite amendment to contaminated soil on the heavy metal (Cd, Cr, Cu, Pb and Zn) simulated bioavailability over a three-month period of storage. Two pot experiments were created by amending soil with two different amounts of natural zeolite (3 and 6 wt.%). During the experiment, pH level, metal concentrations in soil solution (C<sub>sol</sub>) and metal concentrations in soil by the diffusive gradients in thin-films technique (C<sub>DGT</sub>) were determined. When the zeolite was added to the soil, a significant decrease (<i>p</i> = 95%, <i>n</i> = 3) for Cd and Pb concentrations, both in C<sub>sol</sub> and in C<sub>DGT</sub>, was observed. The Cu, Cr and Zn concentrations also showed a decreasing trend, but the changes in their concentrations were not statistically significant. The R ratio between C<sub>DGT</sub> and C<sub>sol</sub> was calculated for each metal in order to assess the resupply of metals from the soil solid phase to soil solution. The R values significantly decreased for Cd and Pb, showing a low resupply from the solid phase in the samples with added zeolite.https://www.mdpi.com/2077-0472/12/3/321DGTimmobilizationtoxic metalsinorganic amendmentssoil remediationin situ remediation |
| spellingShingle | Marin Senila Oana Cadar Lacrimioara Senila Bogdan Simion Angyus Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique Agriculture DGT immobilization toxic metals inorganic amendments soil remediation in situ remediation |
| title | Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique |
| title_full | Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique |
| title_fullStr | Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique |
| title_full_unstemmed | Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique |
| title_short | Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique |
| title_sort | simulated bioavailability of heavy metals cd cr cu pb zn in contaminated soil amended with natural zeolite using diffusive gradients in thin films dgt technique |
| topic | DGT immobilization toxic metals inorganic amendments soil remediation in situ remediation |
| url | https://www.mdpi.com/2077-0472/12/3/321 |
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