| Full text | |
| Author(s): |
Ferreira, Amanda Duim
[1]
;
Queiroz, Hermano Melo
[1]
;
Luis Otero, Xose
[2]
;
Barcellos, Diego
[3]
;
Bernardino, Angelo Fraga
[4]
;
Ferreira, Tiago Osorio
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Soil Sci, Piracicaba, SP - Brazil
[2] Univ Santiago de Compostela, Fac Biol, Dept Edafol & Quim Agr, Santiago De Compostela - Spain
[3] Univ Fed Sao Paulo, Dept Environm Sci, Sao Paulo, SP - Brazil
[4] Univ Fed Espirito Santo, Dept Oceanog, Grp Ecol Benton, Vitoria, ES - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | JOURNAL OF HAZARDOUS MATERIALS; v. 428, APR 15 2022. |
| Web of Science Citations: | 0 |
| Abstract | |
Due to its abundance and role as a micronutrient for plants iron (Fe) is rarely perceived as a contaminant. However, in redox active environments, Fe bioavailability increases sharply representing an environmental risk. In this study, a recent catastrophic mining dam failure is used as a field framework to evaluate the role of wetland plants on Fe biogeochemistry and assess their potential for phytoremediation programs. To achieve these objectives, a Fe geochemical partitioning and the concentration of Fe in different plant compartments (iron plaque on root surfaces, roots, and leaves) were determined in two sites vegetated by different wetland species. Soils exhibited contrasting Fe biogeochemical dynamics. Lower pseudo-total contents and more reactive Fe oxides were observed in the soil vegetated by Typha domingensis. Iron plaque was present on both species but more concentrated in Fe in T. domingensis. T. domingensis showed Fe shoot concentrations (3874 mg kg(-1)) 10-fold higher than in Hibiscus tiliaceus, which prevented Fe absorption through iron plaque formation and root accumulation. In conclusion, contrasting biogeochemical effects on Fe (e.g., rhizosphere acidification) lead to different phytoremediation abilities. T. domingensis showed a high potential for Fe phytoremediation on sites affected by Fe-enriched wastes and should be tested in assisted phytoremediation approaches. (AU) | |
| FAPESP's process: | 21/00221-3 - From sinks to sources: vulnerability of mangrove soils as carbon sinks in the face of global climate change |
| Grantee: | Hermano Melo Queiroz |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/19987-6 - Soils and plants of the Rio Doce estuary controlling the biogeochemistry of iron and metals in response to the Mariana (MG) disaster |
| Grantee: | Tiago Osório Ferreira |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/08408-2 - Comparative studies of the mineral transformation of iron oxide nanoparticles in mine-tailing affected sediments and soils and their impacts on mobilization and fixation of heavy metals under two contrasting redox environments |
| Grantee: | Tiago Osório Ferreira |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/04259-2 - Iron biogeochemistry and its control on dynamics of trace metals in the soils of Doce River estuary after the "Mariana disaster" |
| Grantee: | Hermano Melo Queiroz |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 19/14800-5 - Estuarine plants and their control in metals biogeochemistry in soils impacted by the `Mariana disaster´ |
| Grantee: | Amanda Duim Ferreira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |