Environmental assessment and nano-mineralogical characterization of coal, overburden and sediment from Indian coal mining acid drainage

Dutta, Madhulika; Saikia, Jyotilima; Taffarel, Sílvio Roberto; Waanders, F.B.; Medeiros, Diego De; Cutruneo, C.M.N.L.; Silva, Luis; Saikia, Binoy K.

doi:10.1016/j.gsf.2016.11.014

Cited by 94 publications

(34 citation statements)

References 40 publications

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“…Since SO 2 has been emitted whenever fuels containing sulphur, like coal, coke and oil, are burnt, its main anthropogenic emission sources are coal-fired power plants, central-heating stations, and industrial furnaces in the iron and steel industry (Speight, 2013). Herewith, a considerable amount of research of sulphur emission processes, pathways, budgets and environmental issues has been published so far (Speight, 2005;Baruah and Khare, 2010;Bläsing et al, 2015;Saikia and Ninomiya, 2011;Saikia et al, 2015;Dutta et al, 2017). Although the sulphur content in coal varies considerably, its total levels most commonly range from 0.50% to 5.00% (Rađenović, 2004;Chou, 2012).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry of Croatian superhigh-organic-sulphur Raša coal, imported low-S coal and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage and mushroom specimens

Medunić

Kuharić

Krivohlavek

et al. 2018

IJOGCT

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Abstract:The Labin City area has represented the major Croatian coal mining, metal industry and coal-fired electricity centre for more than two centuries. The domestic superhigh-organic-sulphur (SHOS) Raša coal is a unique variety compared to other coal types worldwide, based on its highest organic sulphur values, up to 11%. It was utilised in the Plomin coal-fired power plant during the period 1970-2000, and was replaced by an imported low-S coal afterwards. This paper presents the levels of S, Se, V, U, Hg, Sr, Cd, Cr, Pb, Cu and Zn in the two coal types, their bottom ash, seawater and plant (clover, mushroom and foliage) specimens collected from the Labin City area, while the sulphate was measured in surface stream water. Their levels were compared with relevant legislative as well as the published data from different world localities. Data analysis was interpreted in the context of past and recent coal combustion activities.

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Section: Introductionmentioning

confidence: 99%

Geochemistry of Croatian superhigh-organic-sulphur Raša coal, imported low-S coal and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage and mushroom specimens

Medunić

Kuharić

Krivohlavek

et al. 2018

IJOGCT

View full text Add to dashboard Cite

show abstract

“…Since SO 2 has been emitted whenever fuels containing sulphur, like coal, coke and oil, are burnt, its main anthropogenic emission sources are coal-fired power plants, central-heating stations, and industrial furnaces in the iron and steel industry (Speight, 2013). Herewith, a considerable amount of research of sulphur emission processes, pathways, budgets and environmental issues has been published so far (Speight, 2005; Baruah and Khare, 2010;Bläsing et al, 2015;Saikia and Ninomiya, 2011;Saikia et al, 2015;Dutta et al, 2017). Although the sulphur content in coal varies considerably, its total levels most commonly range from 0.50% to 5.00% (Rađenović, 2004;Chou, 2012).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry of Croatian superhigh-organic-sulphur Raa coal, imported low-S coal, and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage, and mushroom specimens

Medunić

Kuharić

Krivohlavek

et al. 2018

IJOGCT

View full text Add to dashboard Cite

The Labin City area has represented the major Croatian coal mining, metal industry and coal-fired electricity centre for more than two centuries. The domestic superhigh-organic-sulphur (SHOS) Raša coal is a unique variety compared to other coal types worldwide, based on its highest organic sulphur values, up to 11%. It was utilised in the Plomin coal-fired power plant during the period 1970-2000, and was replaced by an imported lowS coal afterwards. This paper presents the levels of S, Se, V, U, Hg, Sr, Cd, Cr, Pb, Cu and Zn in the two coal types, their bottom ash, seawater and plant (clover, mushroom and foliage) specimens collected from the Labin City area, while the sulphate was measured in surface stream water. Their levels were compared with relevant legislative as well as the published data from different world localities. Data analysis was interpreted in the context of past and recent coal combustion activities. [

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“…Coal mine spoils produced in open-cast mining are of particular interest in many countries (e.g., Australia and USA) because of their salt generating capacity. Previous studies have investigated the leaching potential and leachate chemistry of coal mine spoils [16,[30][31][32][33], as well as their geochemical characterisation [6,12,25,[34][35][36]. However, the influence of weathering on salt generation processes and the magnitudes and rates of salt release are not well understood.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Weathering on Salt Release from Coal Mine Spoils

et al. 2019

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Coal mine spoils have the potential to create environmental impacts, such as salt load to surrounding environments, particularly when exposed to weathering processes. This study was conducted to understand the effect of physical and chemical weathering on the magnitude, rate, and dynamics of salt release from different coal mine spoils. Five spoil samples from three mines in Queensland were sieved to three different particle size fractions (<2 mm, 2–6 mm, and >6 mm). Two samples were dispersive spoils, and three samples were nondispersive spoils. The spoils were subjected to seven wet–dry cycles, where the samples were periodically leached with deionised water. The rate, magnitude, and dynamics of solutes released from spoils were spoil specific. One set of spoils did not show any evidence of weathering, but initially had higher accumulation of salts. In contrast, broad oxidative weathering occurred in another set of spoils; this led to acid generation and resulted in physical weathering, promoting adsorption–desorption and dissolution and, thus, a greater release of salts. This study indicated that the rate and magnitude of salt release decreased with increasing particle size. Nevertheless, when the spoil is dispersive, the degree of weathering manages salt release irrespective of initial particle size. This study revealed that the long-term salt release from spoils is not only governed by geochemistry, weathering degree, and particle size but also controlled by the water/rock ratio and hydrological conditions of spoils.

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Environmental assessment and nano-mineralogical characterization of coal, overburden and sediment from Indian coal mining acid drainage

Cited by 94 publications

References 40 publications

Geochemistry of Croatian superhigh-organic-sulphur Raša coal, imported low-S coal and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage and mushroom specimens

Geochemistry of Croatian superhigh-organic-sulphur Raša coal, imported low-S coal and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage and mushroom specimens

Geochemistry of Croatian superhigh-organic-sulphur Raa coal, imported low-S coal, and bottom ash: their Se and trace metal fingerprints in seawater, clover, foliage, and mushroom specimens

The Effect of Weathering on Salt Release from Coal Mine Spoils

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