Results 221 to 230 of about 545,061 (279)

Properties of Concrete Incorporating Coal Fly Ash and Coal Bottom Ash

Journal of The Institution of Engineers (India): Series A, 2019
Million 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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Acid leaching of coal and coal-ashes⋆

Fuel, 2003
Twelve Turkish lignites and the corresponding ashes were leached in sulfuric acid (pH 1.0, 25 8C) for 14 days. Asphaltite from Silopi amended the coals. The conditions mimic treatment in the effluent from bioleaching of sulfidic mineral concentrates, but the results are equally valid for an isolated leaching process.
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Settling of Coal Ashes

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, T.‐Y. J. Chu, R. J. Ruane   +2 more
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Radioactivity of coal and ash

Coke and Chemistry, 2010
The radioactivity of Kuznetsk Basin coal and ash is considered, in relation to other regions.
Kh. A. Iskhakov, E. L. Schastlivtsev, Yu. A. Kondratenko, M. L. Lesina   +3 more
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From ashes to ashes: The chemical alterlives of coal ash

Geographical Research
Abstract Toxic geographies disproportionately impact low‐income and racially marginalised communities, degrading the land, water, and air they depend upon. This paper examines Uniontown, Alabama, a rural town located in the heart of the Black Belt region, and also the site of Arrowhead Landfill—an industrial and solid waste facility ...
Shorna Allred, Neelia Heath
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Elemental analysis of coal and coal ASH by PIXE technique

Applied Radiation and Isotopes, 2012
Coal and coal ash samples were characterized by particle induced X-ray emission spectroscopic technique. Sixteen elements, namely K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, As, Rb, Sr, Y and Pb were quantified in this study. Elements like K, Ca, Ti and Fe were present as major elements, whereas, other elements like V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Rb,
K C, Patra, Tapash R, Rautray, B B, Tripathy, P, Nayak   +3 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, 2017
ABSTRACTThe 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, A. Lawrence, P. Sivashanmugam   +2 more
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Ash Composition Influence on Fusibility of Coal Ash

Applied Mechanics and Materials, 2013
The coal of Zichang was selected as the sample coal, the physical properties of the ash is analyzed with ICP-AES. The ash fusion temperature was researched by adding different basic oxide contents. The results show that the general trend is decrease firstly, and then increase when adding basic oxides.
Na Gao, Sheng Hua Liu, Yan Hong Guo
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Oxygen in coal ash: a simplified approach to the analysis of ash and mineral matter in coal

Fuel, 1977
Abstract Oxygen was determined accurately in eight U.S. Bureau of Mines coal ash samples A, B, D, F, G, I, and J, NBS coal fly ash 1633 reference material, and two low-temperature ashes (LTA) from lllinois State Geological Survey. The method uses fast-neutron activation (FNA) analysis employing a dual counting and irradiation system which is ...
Alexis Volborth, George E. Miller, Claudia K. Garner, Paul A. Jerabek   +3 more
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Assessment of environmental and chemical properties of coal ashes including fly ash and bottom ash, and coal ash concrete

Journal of Building Engineering, 2022
Mahdi Rafieizonooz, Elnaz Khankhaje, Shahabaldin Rezania   +2 more
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