Agnieszka Klupa

Główny Instytut Górnictwa | GIG · DEPARTMENT OF ENVIRONMENTAL MONITORING

Purpose: the article presents the result of an attempt to assess the possibility of using scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS) to identify silica nanoparticles (SiO2), which, due to the size of individual particles (200 nm), can be used as coronavirus markers in simulation tests. Methodology: SEM/EDS evaluation...

The paper presents the characteristics of products annealing at the temperatures of 2400 and 3000 °C of unburned carbon from coal fly ash in terms of its possible use as a starting material in the graphitization process. An amorphous substance (organic substance) with an admixture of some minerals has been found in samples subjected to graphitizati...

Coal sludges are the smallest fraction of post-mining waste. Their grain size is less than 1 mm, and most grains have size below 60 μm. These wastes are mainly separated from the water-sludge circulations of the mines. Coal sludges are generally characterized by worse quality parameters in relation to the coal grades produced by mines. The fight ag...

Unburned coal grains often hinder the economic utilization of fly ash and also represent energy loss of the fuel. This paper addresses the possibility of separating unburned coal from a selected fly ash with typical mineralogical and chemical characteristics. To assess the possibility of separating the unburned coal, the analysis of the grain densi...

This article presents the results of slag property studies, for characterization of unburned carbon separated. Size composition and loss-on-ignition distribution as a function of particle size were studied. The density analyses were performed for the selected size fractions. The successful tests on carbon particle separation using: the magnetic sep...

The subject of the article is the quantitative–qualitative characterization of unburned carbon in fly ash, occured in power plants in southern Poland, fired with hard coal. Significant differences were found in the chemical and mineralogical composition of ashes, divided in groups regarding the combustion technology, i.e. pulverized boilers and com...

The presence and form of occurrence of phosphorus in coal is important not only from the scientific point of view, but it is also relevant in practical aspects (origin of deposit, paleoenvironment index, correlation of beds, coke production, economically significant presence of REEs in phosphates). In the south-western part of the Upper Silesian Co...

The paper covers the issues of mineral transformations in the natural aggregate made of greywacke rock used in A1 Motorway asphalt wearing courses (SMA 11 and AC 11) under hypergenic conditions (connected with external environment factors), typical for pavements. The results of these transformations have an appearance of rusty efflorescences on sur...

The S-7 borehole log from the Sumina area (USCB Poland) revealed the presence of three basaltic veins originating from a basalt dyke. Coal interlayers in the rocks surrounding the basaltic veins have been coked to form natural coke. Photometric measurements revealed that the optical properties of the studied natural coke samples are characteristic...

Rare earth elements are characterized by the high risk of their shortage resulting from limited resources. From this reason REE constitute a group of elements of special importance for the European Union. The aim of this study was to evaluate ashes from the burning of coal in fluidized bed boilers as an potential source of REY. Twelve samples of fl...

This article presents the possibilities of using modern measuring devices to determine the properties of process residues (Polish acronym: UPP). UPP was taken from the combustion process from a power plant in Silesia. Determining the properties of UPP is the basis for making decisions about its practical application, for example, as a raw material...

The authors regret that in the original paper, the name of cited author has been published incorrectly: (Huijgen & Comans, 2005; Muduli et al., 2014; Świder & Uliasz-Bocheńczyk, 2010; Uliasz-Bocheńczyk, 2007, 2009). (pp.167, 171) The correct version of the name of cited author is provided below: (Huijgen & Comans, 2005; Muduli et al., 2014; Świnder...

The purpose of this paper is to examine the possibility of reduction of free calcium oxide content in waste from fluidized bed boilers by treating them with carbon dioxide under various conditions. The primary examination concerning the possibilities of reducing the content of free calcium oxide in waste included carbonation process in a laboratory...

MOŻLIWOŚĆ ZAGOSPODAROWANIA WYBRANYCH ODPADÓW Z PROCESÓW CZYSTYCH TECHNOLOGII WĘGLOWYCH Streszczenie Procesy czystych technologii węglowych w zdecydowanej większości wiążą się z produkcją odpa-dów, które należy zagospodarować lub zutylizować. Technologiczny postęp i rozwój procesów CTW sprawia, że przedmiotowe odpady zaczynają być traktowane jak pro...