Anna Tomczyk-Chmiel

Anna Tomczyk-Chmiel
AGH University of Science and Technology in Kraków | AGH · Faculty of Geology, Geophysics and Environment Protection

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13
Publications
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56
Citations

Publications

Publications (13)
Article
Full-text available
The enormous amount of spent catalysts generated worldwide may pose a risk to the environment because of their high load of metals, including vanadium. The latter may be mobilized and released to the environment if managed improperly. Moreover, the catalysts could be considered as secondary resources rather than waste. This study aimed at the effic...
Article
Full-text available
Activation of natural sepiolite by means of grinding in a planetary mill followed by wet NaOH activation was studied for the purpose of endowing the product with enhanced basicity for potential catalytic/sorptive applications. Synthesized solids were characterized with X-ray powder diffraction (XRD), N2 adsorption/desorption, scanning electron micr...
Article
Full-text available
This study aimed at evaluation of air pollution control residues (APCR) and flue gas desulfurization residues (FGDR) from copper foundry in Southwestern Poland as adsorbents of Cu(II) and Pb(II) from simulated wastewater. Studies of the impact of pH and adsorbent dose, as well as sorption isotherms, and kinetic and thermodynamic studies were conduc...
Article
This paper presents the results of detailed petrographic and mineralogical studies of commercial bentonite from the Hliník nad Hronom deposit in Slovakia. The X-ray diffraction, optical microscopy, field emission scanning electron microscopy (FESEM), thermal analysis, infrared spectroscopy and chemical analyses revealed that the main component of t...
Article
Full-text available
This paper summarizes information about recently worked bentonite deposits in Slovakia and presents the results of studies on bentonite from the Central Slovakia Volcanic Field (CSVF). The authors compared the mineralogy of commercial bentonites exploited in the Stara Kremnička (Jelšový potok), Kopernica, and Hliník nad Hronom deposits. X-ray diffr...
Article
Full-text available
The aim of this research was to determine the effect of thermal conversion temperature and plant material addition to sewage sludge on the PAHs content and the activity of selected γ-radionuclides in biochars, and to conduct an ecotoxicological assessment. The pyrolysis of the mixtures of sewage sludge and plant materials at 300°C and such temperat...
Article
Full-text available
In this study, a series of synthetic ferrihydrite samples of Si/Fe molar ratios ranging from zero to 1.5 were heated up to 1000 A degrees C using simultaneous TG-DTA equipment. The XRD, FTIR, SEM-EDS and magnetic susceptibility measurements were carried out prior to and after heating. It has been found that silicate retards ferrihydrite transformat...
Article
ABSTRACT: The commercial bentonite from the Kopernica deposit (Slovakia), is currently mined by the CERTECH Company to produce materials intended for animal-care applications and other industrial purposes. The present study aimed to assess the mineralogical, petrographic and physico-chemical characteristics of three bentonite varieties from Koperni...
Conference Paper
Abstract. The olive-green bentonite from the Askana deposit in Georgia is tested by the CERTECH company based in Niedomice near Tarnów, Poland as a potential smectite raw-material. Using a wide spectrum of methods: optical microscopy and FESEM, X-ray powder diffraction, thermal analysis, IR spectroscopy and X-ray fluorescence, the authors determine...

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Projects

Project (1)
Project
The project aims at evaluating the waste streams from Polish copper ore enrichment and smelting facilities with regard to the concentration of metals deemed critical (according to EU list) and possible low-energy and low-cost recovery methods of these elements. This project is connected with my PhD thesis (entitled similarly).