Effect of clay on the fractions of potentially toxic elements in contaminated soil
The aim of the study was to evaluate the effect of clay as an amendment to decrease the mobility and plant availability of potentially toxic elements (PTEs). Kaolinite and vermiculite were added at a 9% application rate to a contaminated garden soil from Kutná Hora. Half of the original soil was aci...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2021-03-01
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| Series: | Soil and Water Research |
| Subjects: | |
| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-202101-0001_effect-of-clay-on-the-fractions-of-potentially-toxic-elements-in-contaminated-soil.php |
| _version_ | 1797897809303699456 |
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| author | Kateřina Vejvodová Ondřej Drábek Christopher Ash Václav Tejnecký Karel Němeček Luboš Borůvka |
| author_facet | Kateřina Vejvodová Ondřej Drábek Christopher Ash Václav Tejnecký Karel Němeček Luboš Borůvka |
| author_sort | Kateřina Vejvodová |
| collection | DOAJ |
| description | The aim of the study was to evaluate the effect of clay as an amendment to decrease the mobility and plant availability of potentially toxic elements (PTEs). Kaolinite and vermiculite were added at a 9% application rate to a contaminated garden soil from Kutná Hora. Half of the original soil was acidified by the addition of HNO3, to observe the effect of the pH on the adsorption of the PTEs. The samples were analysed four times over an eight-week period to evaluate the effect of the clay additions on the As, Cd, Pb and Zn plant availability and different fractions of the BCR sequential extraction. The results indicate that the PTEs were mainly bound by ion/cation exchange on the edges of the clay minerals and onto the Fe/Mn oxides and organic fractions in the soils. The significance (P < 0.05) of the pH was observed for the plant availability of the PTE, especially on the As and Cd. A comparison of the vermiculite in the form of chunks and as powder displayed the most statistically significant results, where the vermiculite powder significantly decreased the plant availability of the As, Cd and Pb, while the opposite effect was observed for the Zn. |
| first_indexed | 2024-04-10T08:04:13Z |
| format | Article |
| id | doaj.art-86651295e7c843b995f276348c426c20 |
| institution | Directory Open Access Journal |
| issn | 1801-5395 1805-9384 |
| language | English |
| last_indexed | 2024-04-10T08:04:13Z |
| publishDate | 2021-03-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj.art-86651295e7c843b995f276348c426c202023-02-23T03:48:47ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842021-03-0116111010.17221/13/2020-SWRswr-202101-0001Effect of clay on the fractions of potentially toxic elements in contaminated soilKateřina VejvodováOndřej Drábek0Christopher Ash1Václav Tejnecký2Karel Němeček3Luboš Borůvka4Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicThe aim of the study was to evaluate the effect of clay as an amendment to decrease the mobility and plant availability of potentially toxic elements (PTEs). Kaolinite and vermiculite were added at a 9% application rate to a contaminated garden soil from Kutná Hora. Half of the original soil was acidified by the addition of HNO3, to observe the effect of the pH on the adsorption of the PTEs. The samples were analysed four times over an eight-week period to evaluate the effect of the clay additions on the As, Cd, Pb and Zn plant availability and different fractions of the BCR sequential extraction. The results indicate that the PTEs were mainly bound by ion/cation exchange on the edges of the clay minerals and onto the Fe/Mn oxides and organic fractions in the soils. The significance (P < 0.05) of the pH was observed for the plant availability of the PTE, especially on the As and Cd. A comparison of the vermiculite in the form of chunks and as powder displayed the most statistically significant results, where the vermiculite powder significantly decreased the plant availability of the As, Cd and Pb, while the opposite effect was observed for the Zn.https://swr.agriculturejournals.cz/artkey/swr-202101-0001_effect-of-clay-on-the-fractions-of-potentially-toxic-elements-in-contaminated-soil.phpclay amendmentcontaminationplant availabilityptesoil acidification |
| spellingShingle | Kateřina Vejvodová Ondřej Drábek Christopher Ash Václav Tejnecký Karel Němeček Luboš Borůvka Effect of clay on the fractions of potentially toxic elements in contaminated soil Soil and Water Research clay amendment contamination plant availability pte soil acidification |
| title | Effect of clay on the fractions of potentially toxic elements in contaminated soil |
| title_full | Effect of clay on the fractions of potentially toxic elements in contaminated soil |
| title_fullStr | Effect of clay on the fractions of potentially toxic elements in contaminated soil |
| title_full_unstemmed | Effect of clay on the fractions of potentially toxic elements in contaminated soil |
| title_short | Effect of clay on the fractions of potentially toxic elements in contaminated soil |
| title_sort | effect of clay on the fractions of potentially toxic elements in contaminated soil |
| topic | clay amendment contamination plant availability pte soil acidification |
| url | https://swr.agriculturejournals.cz/artkey/swr-202101-0001_effect-of-clay-on-the-fractions-of-potentially-toxic-elements-in-contaminated-soil.php |
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