Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals

Abstract Drains from coal mines remain a worrisome point-source of toxic metal/metalloid pollutions to the surface- and ground-waters worldwide, requiring sustainable remediation strategies. Understanding the microbial community subtleties through microbiome and geochemical data can provide valuable...

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Autores principales:	Ganiyu Oladunjoye Oyetibo, Joy Aimiede Enahoro, Chimuanya Amarachi Ikwubuzo, Chiamaka Shileakanwa Ukwuoma
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b37e31220f794e37875b5b6c3ad696c2
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spelling	oai:doaj.org-article:b37e31220f794e37875b5b6c3ad696c22021-12-02T16:38:49ZMicrobiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals10.1038/s41598-021-96899-z2045-2322https://doaj.org/article/b37e31220f794e37875b5b6c3ad696c22021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96899-zhttps://doaj.org/toc/2045-2322Abstract Drains from coal mines remain a worrisome point-source of toxic metal/metalloid pollutions to the surface- and ground-waters worldwide, requiring sustainable remediation strategies. Understanding the microbial community subtleties through microbiome and geochemical data can provide valuable information on the problem. Furthermore, the autochthonous microorganisms offer a potential means to remediate such contamination. The drains from Onyeama coal mine in Nigeria contained characteristic sulphates (313.0 ± 15.9 mg l−1), carbonate (253.0 ± 22.4 mg l−1), and nitrate (86.6 ± 41.0 mg l−1), having extreme tendencies to enrich receiving environments with extremely high pollution load index (3110 ± 942) for toxic metals/metalloid. The drains exerted severe degree of toxic metals/metalloid contamination (Degree of contamination: 3,400,000 ± 240,000) and consequent astronomically high ecological risks in the order: Lead > Cadmium > Arsenic > Nickel > Cobalt > Iron > Chromium. The microbiome of the drains revealed the dominance of Proteobacteria (50.8%) and Bacteroidetes (18.9%) among the bacterial community, whereas Ascomycota (60.8%) and Ciliophora (12.6%) dominated the eukaryotic community. A consortium of 7 autochthonous bacterial taxa exhibited excellent urease activities (≥ 253 µmol urea min−1) with subsequent stemming of acidic pH to > 8.2 and sequestration of toxic metals (approx. 100% efficiency) as precipitates (15.6 ± 0.92 mg ml−1). The drain is a point source for metals/metalloid pollution, and its bioremediation is achievable with the bacteria consortium.Ganiyu Oladunjoye OyetiboJoy Aimiede EnahoroChimuanya Amarachi IkwubuzoChiamaka Shileakanwa UkwuomaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ganiyu Oladunjoye Oyetibo Joy Aimiede Enahoro Chimuanya Amarachi Ikwubuzo Chiamaka Shileakanwa Ukwuoma Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
description	Abstract Drains from coal mines remain a worrisome point-source of toxic metal/metalloid pollutions to the surface- and ground-waters worldwide, requiring sustainable remediation strategies. Understanding the microbial community subtleties through microbiome and geochemical data can provide valuable information on the problem. Furthermore, the autochthonous microorganisms offer a potential means to remediate such contamination. The drains from Onyeama coal mine in Nigeria contained characteristic sulphates (313.0 ± 15.9 mg l−1), carbonate (253.0 ± 22.4 mg l−1), and nitrate (86.6 ± 41.0 mg l−1), having extreme tendencies to enrich receiving environments with extremely high pollution load index (3110 ± 942) for toxic metals/metalloid. The drains exerted severe degree of toxic metals/metalloid contamination (Degree of contamination: 3,400,000 ± 240,000) and consequent astronomically high ecological risks in the order: Lead > Cadmium > Arsenic > Nickel > Cobalt > Iron > Chromium. The microbiome of the drains revealed the dominance of Proteobacteria (50.8%) and Bacteroidetes (18.9%) among the bacterial community, whereas Ascomycota (60.8%) and Ciliophora (12.6%) dominated the eukaryotic community. A consortium of 7 autochthonous bacterial taxa exhibited excellent urease activities (≥ 253 µmol urea min−1) with subsequent stemming of acidic pH to > 8.2 and sequestration of toxic metals (approx. 100% efficiency) as precipitates (15.6 ± 0.92 mg ml−1). The drain is a point source for metals/metalloid pollution, and its bioremediation is achievable with the bacteria consortium.
format	article
author	Ganiyu Oladunjoye Oyetibo Joy Aimiede Enahoro Chimuanya Amarachi Ikwubuzo Chiamaka Shileakanwa Ukwuoma
author_facet	Ganiyu Oladunjoye Oyetibo Joy Aimiede Enahoro Chimuanya Amarachi Ikwubuzo Chiamaka Shileakanwa Ukwuoma
author_sort	Ganiyu Oladunjoye Oyetibo
title	Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
title_short	Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
title_full	Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
title_fullStr	Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
title_full_unstemmed	Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals
title_sort	microbiome of highly polluted coal mine drainage from onyeama, nigeria, and its potential for sequestrating toxic heavy metals
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b37e31220f794e37875b5b6c3ad696c2
work_keys_str_mv	AT ganiyuoladunjoyeoyetibo microbiomeofhighlypollutedcoalminedrainagefromonyeamanigeriaanditspotentialforsequestratingtoxicheavymetals AT joyaimiedeenahoro microbiomeofhighlypollutedcoalminedrainagefromonyeamanigeriaanditspotentialforsequestratingtoxicheavymetals AT chimuanyaamarachiikwubuzo microbiomeofhighlypollutedcoalminedrainagefromonyeamanigeriaanditspotentialforsequestratingtoxicheavymetals AT chiamakashileakanwaukwuoma microbiomeofhighlypollutedcoalminedrainagefromonyeamanigeriaanditspotentialforsequestratingtoxicheavymetals
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Microbiome of highly polluted coal mine drainage from Onyeama, Nigeria, and its potential for sequestrating toxic heavy metals

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