Determination of metals by total reflection X-ray fluorescence and evaluation of toxicity of a river impacted by coal mining in the south of Brazil

Lattuada, R.; Menezes, Carlyle Torres Bezerra de; Pavei, Paula Tramontim; Peralba, M. C. R.; Santos, João Henrique Zimnoch dos

doi:10.1016/j.jhazmat.2008.07.003

Cited by 57 publications

(23 citation statements)

References 19 publications

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“…According to the local coal industry syndicate of Santa Catarina State, the average run-of-mine coal production is 6 million tonnes/year, from which 3.5 million tonnes/year are rejected and disposed of in landfills (Marcello et al, 2008). Brazilian coal is characterised by high proportions of sulphide minerals, pyrite and marcasite (Galatto et al 2009;Lattuada et al 2009;Marcello et al 2008;Silva et al 2009), and therefore the rejects from coal cleaning operations can be regarded as potential sources of sulphur.…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and minerals in pyrite ash of an abandoned sulphuric acid production plant

Oliveira

Ward

Izquierdo

et al. 2012

Science of The Total Environment

162

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The extraction of sulphur produces a hematite-rich waste, known as roasted pyrite ash, which contains significant amounts of environmentally sensitive elements in variable concentrations and modes of occurrence. Whilst the mineralogy of roasted pyrite ash associated with iron or copper mining has been studied, as this is the main source of sulphur worldwide, the mineralogy, and more importantly, the characterization of nanoparticles, in coal-derived roasted pyrite ash remain to be resolved. In this work we provide essential data on the chemical composition and nanomineralogical assemblage of roasted pyrite ash. XRD, HR-TEM and FE-SEM were used to identify a large variety of minerals of anthropogenic origin. These phases result from highly complex chemical reactions occurring during the processing of coal pyrite of southern Brazil for sulphur extraction and further manufacture of sulphuric acid. Iron-rich nanoparticles within the ash may contain high proportions of toxic elements such as As, 2 Se, U, among others. A number of elements, such as As, Cr, Cu, Co, La, Mn, Ni, Pb, Sb, Se, Sr, Ti, Zn, and Zr, were found to be present in individual nanoparticles and nanominerals (e.g. oxides, sulphates, clays) in concentrations up to 5%. The study of nanominerals in roasted pyrite ash from coal rejects is important to develop an understanding on the nature of this by-product, and to assess the interaction between emitted nanominerals, ultra-fine particles, and atmospheric gases, rain or body fluids, and thus to evaluate the environmental and health impacts of pyrite ash materials.

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Section: Introductionmentioning

confidence: 99%

Chemical composition and minerals in pyrite ash of an abandoned sulphuric acid production plant

Oliveira

Ward

Izquierdo

et al. 2012

Science of The Total Environment

162

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“…Spontaneous combustion and subsequent deleterious emissions to the atmosphere Zhao et al 2008; 3. Acid leachate discharges to the environment (Cravotta 2008;Silva and Oliveria 2010) Brazilian coal is characterised by high sulphide contents, pyrite and marcasite (Marcello et al 2008;Lattuada et al 2009;Galatto et al 2009;Silva et al 2009b). CCR contain a broad array of elements including environmentally relevant metals such as As, Cu, Co, Ge, Hg, Mn, Pb and Zn among others (Silva and Oliveria 2010).…”

Section: Introductionmentioning

confidence: 99%

Leaching of potential hazardous elements of coal cleaning rejects

Silva

Izquierdo

Querol

et al. 2010

Environ Monit Assess

107

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The geochemical characteristics of coal cleaning rejects (CCR) in Santa Catarina State, Brazil, were investigated. Around 3.5 million ton/year of coal waste are dumped in Santa Catarina State. Coal beneficiation by froth flotation results in large amounts of CCR composed of coaly and mineral matter, the latter characterised by the occurrence of sulphide minerals and a broad array of leachable elements. The total and leachable contents of more than 60 elements were analysed. Atmospheric exposure promotes sulphide oxidation that releases substantial sulphate loads as well as Ca2+, K+, Mg2+, Cl- and Al3+. The metals with the most severe discharges were Zn, Cu, Mn, Co, Ni and Cd. Most trace pollutants in the CCR displayed a marked pH-dependent solubility, being immobile in near-neutral samples. The results highlight the complex interactions among mineral matter solubility, pH and the leaching of potentially hazardous elements.

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“…Nas bacias hidrográfica do Araranguá (BHA), Urussanga (BHU) e Tubarão (BHT), Streck et al (2000), Lattuada et al (2009) (STRECK et al, 2000;TEIXEIRA et al, 2000;SHUQAIR, 2002;POMPÊO et al, 2004;LAUS et al, 2006;BORTOLOTTO;SAVI;PICH, 2007;BRASIL, 2013).…”

Section: As Principais Ocorrências De Carvão No Brasil Localizam-se Nunclassified

“…Lin et al (2007) SHUQAIR, 2002;POMPÊO et al, 2004;LAUS et al, 2006;LATTUADA et al, 2009;BRASIL, 2013 Água e sedimento em área de mineração de carvão…”

Section: As Principais Ocorrências De Carvão No Brasil Localizam-se Nunclassified

Monitoramento de água e sedimento no Rio Palmeiras, Bacia Hidrográfica do Tubarão (SC), Brasil

Brandelero

Miquelluti

Campos

et al. 2016

Eng. Sanit. Ambient.

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RESUMOA mineração de carvão na Bacia Carbonífera Catarinense causa poluição dos recursos hídricos. O objetivo do estudo foi caracterizar a água e o sedimento do Rio Palmeiras, na Bacia Hidrográfica do Tubarão, pela quantificação de metais na água em espectrômetro de massa com fonte de plasma indutivamente acoplado (ICP-MS) e no sedimento em espectrometria de absorção atômica de alta resolução com fonte contínua (HR-CS AAS), e outras variáveis, relacionadas à mineração de carvão. Na água, ocorreu aumento das concentrações de Ca, Mg, Fe, Al, Mn, Zn, e Pb, e no sedimento, ocorreu a diminuição das concentrações de Al, Mn, Zn, Cu e Pb em função da mineração de carvão, propiciada pela solubilização devida ao baixo pH da água. Observaram-se correlações entre as concentrações dos metais na água, no sedimento e cruzadas entre os teores na água e no sedimento.Palavras-chave: metais; bacia carbonífera; Santa Catarina. and between concentrations of metals in the sediment were found, as well as cross correlations between metal levels in the water and sediment.

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Determination of metals by total reflection X-ray fluorescence and evaluation of toxicity of a river impacted by coal mining in the south of Brazil

Cited by 57 publications

References 19 publications

Chemical composition and minerals in pyrite ash of an abandoned sulphuric acid production plant

Chemical composition and minerals in pyrite ash of an abandoned sulphuric acid production plant

Leaching of potential hazardous elements of coal cleaning rejects

Monitoramento de água e sedimento no Rio Palmeiras, Bacia Hidrográfica do Tubarão (SC), Brasil

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