Search Results - "Mello, Jaime"

Bioaccumulation of potentially toxic elements from the soils surrounding a legacy uranium mine in Brazil by Galhardi, Juliana A., de Mello, Jaime W.V., Wilkinson, Kevin J.

“…It is important to understand the environmental fate and potential risks posed by metals and metalloids around mines and in legacy mining areas. In order to…”
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Bioavailability of trace metals and rare earth elements (REE) from the tropical soils of a coal mining area by Galhardi, Juliana A., Leles, Bruno P., de Mello, Jaime W.V., Wilkinson, Kevin J.

“…[Display omitted] •Trace elements and REE are accumulated by soybean in an area linked to coal mining.•Acidic pH and high clay and DOC content enhanced REE…”
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Environmental and health risk assessment of agricultural areas adjacent to uranium ore fields in Brazil by Galhardi, Juliana A., de Mello, Jaime W. V., Wilkinson, Kevin J.

“…To investigate the risks posed by trace and rare earth elements (REEs) in two tropical uranium ore fields, metal concentrations from 50 vegetable samples (corn…”
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Immobilization of Eu and Ho from synthetic acid mine drainage by precipitation with Fe and Al (hydr)oxides by Barcelos, Gisely S., Veloso, Renato Welmer, de Mello, Jaime W. V., Gasparon, Massimo

“…Use of lime to mitigate acid mine drainage is, in general, accompanied by precipitation of iron (Fe) and aluminium (Al) (hydr)oxides which may increase the…”
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Arsenic entrapment by nanocrystals of Al-magnetite: The role of Al in crystal growth and As retention by Freitas, Erico T.F., Stroppa, Daniel G., Montoro, Luciano A., de Mello, Jaime W.V., Gasparon, Massimo, Ciminelli, Virginia S.T.

“…The nature of As-Al-Fe co-precipitates aged for 120 days are investigated in detail by High Resolution Transmission Electron Microscopy (HRTEM), Scanning TEM…”
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Effectiveness of Ferric, Ferrous, and Aluminum (Hydr)Oxide Coprecipitation to Treat Water Contaminated with Arsenate by Vasques, Isabela C. F., Mello, Jaime W. V., Veloso, Renato W., Ferreira, Vanessa de P., Abrahão, Walter A. P.

“…Coprecipitation of Fe and Al (hydr)oxides has been considered a low‐cost process to remove As from wastewater. Arsenate is the most stable form of As in…”
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Seasonal impacts on arsenic mobility and geochemistry in streams surrounding a gold mineralization area, Paracatu, Brazil by Veloso, Renato Welmer, Mello, Jaime Wilson Vargas de, Abrahão, Walter Antônio Pereira, Glasauer, Susan

“…Arsenic (As) is a trace element in the Earth's crust that often occurs with gold mineralization, where it is found in association with sulfide-bearing minerals…”
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Pedogeochemistry in NE-Brazil — Compared to Australia and Europe by Schucknecht, Anne, Matschullat, Jörg, de Caritat, Patrice, da Silva, Juscimar, Melo, Germano, Pleßow, Alexander, Mello, Jaime W.V.

“…A soil geochemical dataset (major and minor elements), based on low-density sampling, is provided for NE-Brazil (ca. 1.7millionkm2). It covers an area from…”
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The role of Al-Goethites on arsenate mobility by Silva, Juscimar, Mello, Jaime W.V., Gasparon, Massimo, Abrahão, Walter A.P., Ciminelli, Virgínia S.T., Jong, Tony

“…The geochemical fates of Fe and As are so closely correlated that methods of As removal from contaminated water are in general based on the high affinity of…”
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Distribution and fractionation of the rare earth elements in Brazilian soils by de Sá Paye, Henrique, de Mello, Jaime W.V., de Magalhães Mascarenhas, Gustavo Rocha Lima, Gasparon, Massimo

“…The distribution and fractionation of Sc, Y and 14 rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) were investigated in 144…”
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Arsenic and trace metals in river water and sediments from the southeast portion of the Iron Quadrangle, Brazil by Varejão, Eduardo V. V, Bellato, Carlos R, Fontes, Maurício P. F, Mello, Jaime W. V

“…The Iron Quadrangle has been one of the most important gold production regions in Brazil since the end of the seventeenth century. There, arsenic occurs in…”
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Effectiveness of Arsenic Co-Precipitation with Fe-Al Hydroxides for Treatment of Contaminated Water by Mello, Jaime Wilson Vargas de, Gasparon, Massimo, Silva, Juscimar

“…ABSTRACT Wastewater treatment is a challenging problem faced by the mining industry, especially when mine effluents include acid mine drainage with elevated…”
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Geochemistry and spatial variability of metal(loid) concentrations in soils of the state of Minas Gerais, Brazil by de Souza, José João Lelis Leal, Abrahão, Walter Antônio Pereira, de Mello, Jaime Wilson Vargas, da Silva, Juscimar, da Costa, Liovando Marciano, de Oliveira, Teógenes Senna

“…Since 2009 a policy has been implemented in Brazil to establish the natural concentrations of potentially toxic substances in soil for each state. Historically…”
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Arsenite removal from contaminated water by precipitation of aluminum, ferrous and ferric (hydr)oxides by Vasques, Isabela C. F., de Mello, Jaime W. V., Veloso, Renato W., Ferreira, Vanessa de P., Abrahão, Walter A. P.

“…Several methods to remove arsenic from water have been considered, including co-precipitation with Fe and Al (hydr)oxides. Such compounds are considered very…”
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Effects of Competing Anions and Iron Bioreduction on Arsenic Desorption by Silva, Juscimar, de Mello, Jaime Wilson Vargas, Gasparon, Massimo, Abrahão, Walter Antônio Pereira

“…Dissimilatory iron-reducing bacteria play a fundamental role in catalysing the redox transformations that ultimately control the mobility of As in anoxic…”
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Impact of arsenate on the growth and metabolism of cyanobacterial strains isolated from gold-mining areas by Obuekwe, Ifeyinwa S, Vaz, Marcelo G. M. V, Veloso, Renato, Mello, Jaime V, Ogugbue, Chimezie J

“…Four cyanobacterial strains isolated from arsenic (As) contaminated area in Minas Gerais, Brazil namely: Pseudanabaena spp. CCM-UFV063 and CCM-UFV065,…”
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Lanthanum immobilization by iron and aluminum colloids by Pietralonga, Aloncio Gottardo, de Mendonça, Bruno Araujo Furtado, Barcelos, Gisely Souza, de Mello, Jaime Wilson Vargas, Abrahão, Walter Antônio Pereira

“…In this work, lanthanum (La) removal from aqueous solution with Al–Fe (hydr)oxides was evaluated and the precipitated materials characterized. We synthesized…”
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Pedogenesis and pre-Colombian land use of “Terra Preta Anthrosols” (“Indian black earth”) of Western Amazonia by Lima, Hedinaldo N, Schaefer, Carlos E.R, Mello, Jaime W.V, Gilkes, Robert J, Ker, João C

“…The “Terra Preta de Índio” (Indian black earth) or Terra Preta of Western Amazonia is a thick, dark-coloured, anthropic epipedon, usually rich in nutrients. It…”
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Evaluation of Arsenic Availability in Sulfidic Materials from Gold Mining Areas in Brazil by de Andrade, Renato Pereira, de Mello, Jaime Wilson Vargas, Windmöller, Cláudia Carvalhinho, da Silva, José Bento Borba, Figueiredo, Bernardino Ribeiro

“…This study is aimed at evaluating the availability and mobility of arsenic in sulfidic materials from gold mining areas in Minas Gerais State, Brazil. Eight…”
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Natural radionuclides and metals intake into soya, corn and lettuce grown on soil amended with phosphogypsum by Mazzilli, Barbara P, Saueia, Cátia H.R, Jacomino, Vanusa M.F, Mello, Jaime W.V

“…Phosphogypsum is a by-product of the phosphate fertilizer industry. It is produced by precipitation during wet process of phosphate rocks, thus posing serious…”
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