Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/50939
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dc.creatorFerreira, Paulo Ademar Avelar-
dc.creatorLopes, Guilherme-
dc.creatorSantana, Natielo Almeida-
dc.creatorMarchezan, Carina-
dc.creatorSoares, Claudio Roberto Fonsêca Sousa-
dc.creatorGuilherme, Luiz Roberto Guimarães-
dc.date.accessioned2022-08-12T17:34:12Z-
dc.date.available2022-08-12T17:34:12Z-
dc.date.issued2022-02-
dc.identifier.citationFERREIRA, P. A. A. et al. Soil amendments affect the potential of Gomphrena claussenii for phytoremediation of a Zn- and Cd-contaminated soil. Chemosphere, [S.l.], v. 288, Part 2, Feb. 2022.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0045653521029805pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/50939-
dc.description.abstractThis study assessed the impact of inorganic and organic amendments upon zinc (Zn) and cadmium (Cd) availabilities in leachates collected from a Cd- and Zn-contaminated soil, while also evaluating the beneficial use of the tested amendments for decreasing metal availability, hence improving the phytoremediation potential of Gomphrena claussenii Moq. Plants were grown for 60 days in a Zn-smelting-affected soil containing 45,000 and 621 mg kg−1 of Zn and Cd, respectively (pseudo-total concentrations), after application of the following amendments: limestone, calcium silicate, sewage sludge, triple superphosphate, and red mud. Zinc and Cd availabilities in the soil decreased following the addition of limestone, calcium silicate, and red mud. These amendments were effective in reducing metal mobility and availability, positively affecting plant growth. Plants grown in the soil amended with limestone and calcium silicate accumulated Zn mainly in the roots, while Cd was translocated to plant shoots, with smaller amounts being detected in the roots. Reductions of Zn and Cd concentrations in the leachate were found by adding red mud, with this decrease for Zn being less pronounced compared to what was verified after the application of limestone and calcium silicate. Moreover, the use of red mud resulted in a higher Zn:Cd ratio in the leachate, which favored a greater absorption and transport of Zn from root to shoot. In conclusion, the tested soil amendments reduced the availability of excessive concentrations of Cd and Zn in naturally contaminated soil, which resulted in improved growth and survival of Zn- and Cd-tolerant G. claussenii plants, with the application of limestone, calcium silicate, and red mud - i.e., alkaline amendments - standing out as the best combinations with G. Claussenii when designing a strategy to achieve optimal phytoremediation.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceChemospherept_BR
dc.subjectPhytotechnologypt_BR
dc.subjectMining/smeltingpt_BR
dc.subjectMetal contaminationpt_BR
dc.subjectGomphrena clausseniipt_BR
dc.subjectSoil amendmentspt_BR
dc.titleSoil amendments affect the potential of Gomphrena claussenii for phytoremediation of a Zn- and Cd-contaminated soilpt_BR
dc.typeArtigopt_BR
Appears in Collections:DCS - Artigos publicados em periódicos

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