Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar
Growing environmental pollution in recent decades has been generating potentially toxic elements (PTE) which pose an ongoing threat to terrestrial and aquatic ecosystems and human health, especially in mining areas. Biochar and PTE-tolerant species have been used in soil remediation as they are envi...
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MDPI AG
2022-01-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/2/150 |
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| author | Hercília Samara Cardoso Costa Edna Santos de Souza Yan Nunes Dias Leônidas Carrijo Azevedo Melo Antonio Rodrigues Fernandes |
| author_facet | Hercília Samara Cardoso Costa Edna Santos de Souza Yan Nunes Dias Leônidas Carrijo Azevedo Melo Antonio Rodrigues Fernandes |
| author_sort | Hercília Samara Cardoso Costa |
| collection | DOAJ |
| description | Growing environmental pollution in recent decades has been generating potentially toxic elements (PTE) which pose an ongoing threat to terrestrial and aquatic ecosystems and human health, especially in mining areas. Biochar and PTE-tolerant species have been used in soil remediation as they are environmentally friendly alternatives. This study aimed to assess the influence of açaí seed biochar (<i>Euterpe oleracea Mart</i>), impregnated with iron (BFe) or not (BC), on the bioavailability of PTEs, in a multi-contaminated soil from a gold (Au) mining area in the Amazon, using <i>Ipomea asarifolia</i> as a plant test since it was naturally growing on the tailings. BC increased the soil pH while BFe reduced. Biochars increased PTEs in the oxidizable fraction (linked to soil organic matter). The use of BC and BFe improved the immobilization of PTEs and BC increased arsenic (As) in the easily soluble fraction in the soil. Moreover, plants grown with biochars showed lower dry matter yield, higher concentrations of PTEs and lower nutrient content than the control treatment. According to the phytoextraction and translocation factors, <i>Ipomea asarifolia</i> can be classified as a species with potential for phytostabilization of Zn and tolerant to other PTEs, mainly As. |
| first_indexed | 2024-03-09T21:22:56Z |
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| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T21:22:56Z |
| publishDate | 2022-01-01 |
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| series | Minerals |
| spelling | doaj.art-a08b36471c8043019bc2b4b1f8c62e1b2023-11-23T21:17:37ZengMDPI AGMinerals2075-163X2022-01-0112215010.3390/min12020150Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated BiocharHercília Samara Cardoso Costa0Edna Santos de Souza1Yan Nunes Dias2Leônidas Carrijo Azevedo Melo3Antonio Rodrigues Fernandes4Institute of Agricultural Sciences, Federal Rural University of Amazon (ICA-UFRA), Belém 66077-830, BrazilXingu Institute of Studies, Federal University of the South and Southeast of Pará (UNIFESPA), São Félix do Xingu 68380-000, BrazilInstitute of Agricultural Sciences, Federal Rural University of Amazon (ICA-UFRA), Belém 66077-830, BrazilDepartment of Soil Science, Federal University of Lavras (UFLA), Lavras 37200-000, BrazilInstitute of Agricultural Sciences, Federal Rural University of Amazon (ICA-UFRA), Belém 66077-830, BrazilGrowing environmental pollution in recent decades has been generating potentially toxic elements (PTE) which pose an ongoing threat to terrestrial and aquatic ecosystems and human health, especially in mining areas. Biochar and PTE-tolerant species have been used in soil remediation as they are environmentally friendly alternatives. This study aimed to assess the influence of açaí seed biochar (<i>Euterpe oleracea Mart</i>), impregnated with iron (BFe) or not (BC), on the bioavailability of PTEs, in a multi-contaminated soil from a gold (Au) mining area in the Amazon, using <i>Ipomea asarifolia</i> as a plant test since it was naturally growing on the tailings. BC increased the soil pH while BFe reduced. Biochars increased PTEs in the oxidizable fraction (linked to soil organic matter). The use of BC and BFe improved the immobilization of PTEs and BC increased arsenic (As) in the easily soluble fraction in the soil. Moreover, plants grown with biochars showed lower dry matter yield, higher concentrations of PTEs and lower nutrient content than the control treatment. According to the phytoextraction and translocation factors, <i>Ipomea asarifolia</i> can be classified as a species with potential for phytostabilization of Zn and tolerant to other PTEs, mainly As.https://www.mdpi.com/2075-163X/12/2/150Cachoeira do Piriáremediationmulti-contaminated soilstolerance to metalsbiochar |
| spellingShingle | Hercília Samara Cardoso Costa Edna Santos de Souza Yan Nunes Dias Leônidas Carrijo Azevedo Melo Antonio Rodrigues Fernandes Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar Minerals Cachoeira do Piriá remediation multi-contaminated soils tolerance to metals biochar |
| title | Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar |
| title_full | Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar |
| title_fullStr | Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar |
| title_full_unstemmed | Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar |
| title_short | Phytoremediator Potential of <i>Ipomea asarifolia</i> in Gold Mine Waste Treated with Iron Impregnated Biochar |
| title_sort | phytoremediator potential of i ipomea asarifolia i in gold mine waste treated with iron impregnated biochar |
| topic | Cachoeira do Piriá remediation multi-contaminated soils tolerance to metals biochar |
| url | https://www.mdpi.com/2075-163X/12/2/150 |
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