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Mullitization of black coal fly ashes
Acta Montanistica Slovaca, 2011 In this paper are presented the results of experiments focused on the study of thermal treatment influence of selected black coal flyashes from the heating plant in Kosice and the power plant in Vojany. The study was realized with original not pretreated samples.The obtained results confirmed that after the thermal treatment of both samples the phase’s
Kušnierová, Mária +3 more
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Hydrothermal synthesis and optimisation of zeolite Na-Pl from South African coal fly ash
, 2009 >Magister Scientiae - MScMillions of tonnes of fly ash are generated worldwide every year to satisfy the large demand for energy. Management of this fly ash has been a concern and various approaches for its beneficial use have been investigated.
Musyoka, Nicholas Mulei
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, 2005 Although air void or the porosity is one of the most important factors that affect the performance of hardened concretes, it is generally not considered in the design and analysis because of the difficulties of its quantification; for example, the air ...
Dhanasekar, Remadevi. +3 more
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The respiratory toxicity of coal fly ash
The combustion of coal for the generation of electricity\ud has many environmental implications. Coal fly ash\ud (CFA; Figure 1) is a product of coal combustion, formed\ud from the incombustible mineral matter contained within\ud the coal. CFA is respirable (i.e.
Jones, Timothy Peter +2 more
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The surface chemistry of leaching coal fly ash
Journal of Hazardous Materials, 2002The utilization of coal fly ash in the construction and non-construction areas has seen a rapid growth in the last decade. As production outweighs the utilization of fly ash, its disposal as a dilute or dense slurry is still practiced in coal fired power stations.
exaly +5 more sources
Leaching of As and Se from coal fly ash: fundamental study for coal fly ash recycling
Environmental Monitoring and Assessment, 2021Coal fly ash (CFA) is a useful recycled resource for uses such as cement raw material. To manage and evaluate safety for effective utilization of CFA, the leaching concentration and amounts of toxic elements in CFA need to be determined. In this study, 38 types of CFA and aged CFA generated in Japan were used to measure the occurrence and leaching ...
Tsugumi Seki +3 more
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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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Volatility of fly ash and coal
Fuel, 1980Abstract The volatilization of fly ash has been examined by a number of techniques including TGA—DTA, Knudsen cell mass spectrometry, volatilization of neutron-activated fly ash, and X-ray fluorescence analysis of sized fly ash, low-temperature ash, and the parent coal.
Richard D. Smith +2 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.
openaire +1 more source
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.
openaire +1 more source