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Title: MICROBIAL COMPOSITION OF NATURAL Fe OXYHYDROXIDES AND ITS INFLUENCE ON ARSENIC AND ANTIMONY SORPTION
MICROBIAL COMPOSITION OF NATURAL Fe OXYHYDROXIDES AND ITS INFLUENCE ON ARSENIC AND ANTIMONY SORPTION

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Bronislava Lalinska-Volekova; Hana Majerova; Ivona Kautmanova; Tomas Farago; Dana Szaboova; Jana Brcekova; Peter Sottnik
10.5593/sgem2022/5.1/s20.037
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
The presented paper represents a comprehensive analysis of hydrous ferric oxides (HFOs) precipitated from Fe rich drainage waters contaminated by arsenic and antimony. Ochre samples from three abandoned Sb deposits were collected in three different seasons and were characterized from the mineralogical, geochemical, and microbiological point of view. They were formed mainly by poorly crystallized 2-line ferrihydrite, with the content of arsenic in samples ranging from 0.7 wt.% to 13 wt.% and content of antimony ranging from 0.025 wt.% up to 1.2 wt.%. Next-generation sequencing approach with 16S RNA, 18S RNA and ITS markers was used to characterize bacterial, fungal, algal, metazoal and protozoal communities occurring in the HFOs. In the 16S RNA, the analysis dominated bacteria (96.2 %) were mainly Proteobacteria (68.8 %) and Bacteroidetes (10.2 %) and to less extent also Acidobacteria, Actinobacteria, Cyanobacteria, Firmicutes, Nitrosprae and Chloroflexi. Alpha and beta diversity analysis revealed that the bacterial communities of individual sites do not differ significantly, and only subtle seasonal changes were observed.
This study provides evidence of diverse microbial communities that exist in drainage waters and are highly important in the process of mobilization or immobilization of the potentially toxic elements.
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This work was supported by the Grant Agency for Research and Development with project number APVV-17-0317 and the Operational Program of Research and Innovations and co-financed with the European Fund for Regional Development (EFRD) ITMS2014+313021W683: “DNA barcoding of Slovakia (SK-BOL), as a part of international initiative International Barcode of Life (iBOL)”.
conference
https://doi.org/10.5593/sgem2022/5.1/s20.037
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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.
287-294
04 - 10 July, 2022
website
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HFOs, antimony, arsenic, next-generation sequencing, bacteria, fungi