Journal ArticleDOI
Petrographic and geochemical characterization of coal waste piles from Douro Coalfield (NW Portugal)
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TLDR
In this article, the main objectives of the paper were the petrographic and geochemical characterization of the waste material, which provide information about the potential environmental problems associated with the waste disposal.About:
This article is published in International Journal of Coal Geology.The article was published on 2011-09-01. It has received 33 citations till now. The article focuses on the topics: Waste disposal & Petrography.read more
Citations
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Journal ArticleDOI
Mineral speciation and fate of some hazardous contaminants in coal waste pile from anthracite mining in Portugal
TL;DR: In this paper, the development of sequential extraction combined with various advanced analytical techniques was performed to provide an improved understanding of the complex processes related with sulfide-rich coal waste oxidation, sequences of mineral formation, and the transport mechanisms of hazardous elements by specific neoformed soluble minerals.
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Mobility behavior and environmental implications of trace elements associated with coal gangue: A case study at the Huainan Coalfield in China
TL;DR: The correlation of the element concentration with ash yield, aluminum, calcium and iron-sulfur indicates that As, Co, Cu, Ni, Se and Zn in coal gangue are mainly associated with sulfide minerals, which could release from coalgangue easily and can disperse into the environment as a result of long-term natural weathering.
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Polycyclic aromatic hydrocarbons (PAHs) in burning and non-burning coal waste piles.
TL;DR: The coal waste material that results from Douro Coalfield exploitation was analyzed by gas chromatography with mass spectrometry for the identification and quantification of the 16 polycyclic aromatic hydrocarbons (PAHs), being phenanthrene the most abundant PAH followed by fluoranthene and pyrene.
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Distribution and health risk assessment of potentially toxic elements in soils around coal industrial areas: A global meta-analysis.
TL;DR: The results revealed that average concentrations of potentially toxic elements varied widely, yet most of them exceeded global averages in background soils and upper continental crust concentrations, and As should be designated as top candidates for priority control to protect human health in the vicinity of coal industry-associated areas.
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Review and update of the applications of organic petrology; Part 2, Geological and multidisciplinary applications
TL;DR: The use of organic petrology in investigations of: (i) ore genesis when organic matter occurs associated with mineralization; (ii) the behavior of organic matter in coal fires (self-heating and self-combustion); (iii) environmental and anthropogenic impacts associated with the management and industrial utilization of coal; (iv) archeology and the nature and geographical provenance of objects of organic nature such as jet, amber, other artifacts and coal from archeological sites; and (v) forensic science connected with criminal behavior or disasters.
References
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The continental crust: Its composition and evolution
TL;DR: In this paper, the authors describe the composition of the present upper crust and deal with possible compositions for the total crust and the inferred composition of lower crust, and the question of the uniformity of crustal composition throughout geological time is discussed.
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Estimations of Clarkes for Carbonaceous biolithes: World averages for trace element contents in black shales and coals
M. P. Ketris,Ya. E. Yudovich +1 more
TL;DR: In this paper, the average trace element contents in the World black shales and coals and coal Clarke values are presented, based on comprehensive calculations using very large amount of information (thousands analyses of black shale, coals, and coal ashes for trace elements).
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The new inertinite classification (ICCP System 1994)
TL;DR: In the ICCP System 1994, the maceral group inertinite was enlarged to include seven macerals by replacing the former maceral sclerotinite by two others, called funginite and secretinite as mentioned in this paper.
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Geochemistry of trace elements in Chinese coals: A review of abundances, genetic types, impacts on human health, and industrial utilization
TL;DR: The background values of trace elements were dominated by sediment source regions in coal-bearing strata in China as mentioned in this paper, and the genetic types for trace-element enrichment of Chinese coals include source-rock- controlled, marine-environment-controlled, hydrothermal-fluid-controlled (including magmatic-, low-temperature-hydrothermalfluid-, and submarine-exhalation-controlled subtypes), groundwater-controlled and volcanic-ash-controlled.
Book
Trace Elements in Coal
TL;DR: In this article, the origins of trace elements in coal and the mode of occurrence of trace element in coal were investigated. But the results were limited to trace element detection in coal.