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Sequential Leaching and Mineralogical Controls of Rare Earth Elements and Yttrium Occurrence in Bituminous Coal from Upper Silesian Coal Basin (Poland). [PDF]
Materials (Basel)Adamczyk Z, Komorek J.
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Lead contents of coal, coal ash and fly ash
Water, Air, and Soil Pollution, 1975Flameless atomic absorption spectrometry is applied for the determination of Pb in coal, coal ash and fly ash. Lead concentrations in coal and coal ash ranging from respectively 7 to 110 µg g−1 and 120 to 450 µg g−1 are found. A mean concentration of 1520 µg g−1 in fly ash corresponding to a concentration of 117 µg m−3 in the effluent gas suggests the ...
C. Block, R. Dams
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Properties of Concrete Incorporating Coal Fly Ash and Coal Bottom Ash
Journal of The Institution of Engineers (India): Series A, 2019Million loads of coal wastes are being generated everywhere across the globe in the form of fly ash and bottom ash. Utilization of such waste materials in concrete is an eco-friendly choice. Therefore, the objective of the current experimental investigation is to explore the effects of fly ash and bottom ash on the properties of concrete by replacing ...
Rajib Kumar Majhi, Amar Nath Nayak
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2020
Coal bottom ash (CBA) is waste product that has been produced during the coal combustion for current generation. It is porous particle, angular and irregular in shape. Besides that, some of the particles were spherical and semi-spherical. There were also agglomerate particles and some CBA particles with interlocking characteristics compared than fine ...
Shahiron Shahidan +1 more
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Coal bottom ash (CBA) is waste product that has been produced during the coal combustion for current generation. It is porous particle, angular and irregular in shape. Besides that, some of the particles were spherical and semi-spherical. There were also agglomerate particles and some CBA particles with interlocking characteristics compared than fine ...
Shahiron Shahidan +1 more
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Applied mineralogical investigation on coal gasification ash
Waste Management, 2023This work aims to perform the applied mineralogical characterization of coal gasification ash (CGA) generated from a commercial fixed bed downdraft gasification plant in eastern India. Analytical and characterization techniques such as stereomicroscopy, optical microscopy, field emission scanning electron microscopy (FESEM) with energy dispersive ...
Rakesh Saini +4 more
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2021
Coal fly ash is a very abundant technogenic waste produced during coal combustion as a fine powder is a huge environmental problem. Due to this, its recycling has been a subject of intensive investigation for a long time. The utilization of mechanochemistry for its treatment brings about improvement in its application potential.
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Coal fly ash is a very abundant technogenic waste produced during coal combustion as a fine powder is a huge environmental problem. Due to this, its recycling has been a subject of intensive investigation for a long time. The utilization of mechanochemistry for its treatment brings about improvement in its application potential.
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Journal of Environmental Engineering, 1983
Settling characteristics of coal ashes collected from TVA power plants are studied. Since the interface between a clarified zone and a suspension is not distinctly visible, a graphical method is developed to determine the settling velocity of the interface and to estimate the suspended solids concentration in effluent from a sedimentation basin ...
Byung R. Kim +2 more
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Settling characteristics of coal ashes collected from TVA power plants are studied. Since the interface between a clarified zone and a suspension is not distinctly visible, a graphical method is developed to determine the settling velocity of the interface and to estimate the suspended solids concentration in effluent from a sedimentation basin ...
Byung R. Kim +2 more
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Grindability Studies on Blended Coals of High-Ash Indian Coals with Low-Ash Imported Coals
International Journal of Coal Preparation and Utilization, 2017ABSTRACTThe study investigates the Hardgrove Grindability Index (HGI) values for binary blends of high-ash Indian coals and low-ash imported coals. The coals were selected in such a way that their grindability values were not closely spaced for studying the effect of blending in the HGI of coal blends.
K. Ananda Babu +2 more
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Cyclic Instability Behaviour of Coal Ash
GeoCongress 2012, 2012The underlying mechanism of cyclic liquefaction of loose contractant cohesionless soil is unstable behaviour associated with deviatoric strain softening. Such unstable (strain softening) behaviour under undrained cyclic loading has been referred to as cyclic instability where the term instability is used in the context of continuum mechanics as a state
Md. A. L. Baki, M. M. Rahman, S. R. Lo
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