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Title: APPLICATION OF STABILIZING AGENTS IN CONTAMINATED SOILS OF OLD MINING AREAS
APPLICATION OF STABILIZING AGENTS IN CONTAMINATED SOILS OF OLD MINING AREAS

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Tomas Farago; Patrik Cermak
10.5593/sgem2022/5.1/s20.005
10.5593/sgem2022/5.1
1314-2704
978-619-7603-46-0
English
22
5.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Ecology and Environmental Protection
Soil pollution by potentially toxic elements (As, Sb, Cu, Zn, Pb) near the mining areas has become a serious environmental problem. These risk elements can be released into the environment, causing a risk to human health. Stabilized pollution in various materials may constitute an additional risk in the long term. Organic acids play an important role in mobilizing contaminants. In the present work, various stabilizing agents (iron nanoparticles – nanoscale zerovalent iron (nZVI), amorphous manganese oxide (AMO), biochar (BC), natural and synthetic zeolites) were investigated in terms of their stabilizing potential under simulated rhizosphere conditions and their consequences in the mineral composition of samples. One of the aims of this work was to understand the reactivity of potential sorbents in contaminated soils of the abandoned Sb-deposit and subsequent mobility of arsenic and antimony by one-step pot experiments using citric and acetic acid. Another goal of this work was to determine the effectiveness of Aspergillus niger and Neosartorya fischeri strains producing organic acids (citric acid, oxalic acid, acetic acid) in bioleaching and bioaccumulation of Cu, Zn and Pb from mining waste from tailings pond.
[1] Hiller, E., Jurkovic, L., Farago, T., Vitkova, M., Toth, R., Komarek, M., 2021: Contaminated soils of different natural pH and industrial origin: The role of (nano) ironand manganese-based amendments in As, Sb, Pb, and Zn leachability. Environmental pollution, Vol. 28515, Article number 117268.
[2] EN 12457-2, 2002: Characterization of waste –Leaching – Compliance test for leaching of granular waste materials and sludges
[3] Ding Y.Z., Song Z.G., Feng R.W., Guo J.K., 2014: Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils. Int. J. Environ. Sci. Technol. 11:33–42 DOI 10.1007/s13762-013-0433-7.
[4] Yang, J., Wang, Q., Wu, T., 2008: Comparisons of one-step and two-step bioleaching for heavy metals removed from municipal solid waste incineration fly ash. Environmental Engineering Science, 25(5), 783-789.
[5] Urik, M., Cernansky, S., Sevc, J., Simonovicova, A., Littera, P., 2007: Biovolatilization of Arsenic by Different Fungal Strains. Water, Air, and Soil Pollution, 186: 337-342.
The work was created with the support of the Agency for the Support of Research and Development within the project APVV-17-0317 Antimony - a critical element and a dangerous contaminant affecting biodiversity in sites with extractive waste.
conference
https://doi.org/10.5593/sgem2022/5.1/s20.005
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
35-40
04 - 10 July, 2022
website
8669
metaloids, soils, sludges, stabilization, organic acids, bioleaching