Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+

Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+

A consortium of microbial community was used for the treatment of acid mine drainage wastewater laden with sulphate and heavy metals. The wastewater was treated in an anaerobic continuously stirred tank bioreactor. The microbial community activity increased the pH from 5.6 to 6.5, and improved sulph...

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Main Authors: Enoch A. Akinpelu, Seteno K.O. Ntwampe, Elvis Fosso-Kankeu, Felix Nchu, Justine O. Angadam
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:Heliyon
Subjects:
Acid mine drainage
Aminopeptidases
Bacillus spp.
Sulphate reduction
Heavy metal removal
Online Access:http://www.sciencedirect.com/science/article/pii/S240584402101344X
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spelling doaj-24b5c35654a84088b6fa577befe741772021-07-05T16:34:24ZengElsevierHeliyon2405-84402021-06-0176e07241Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+Enoch A. Akinpelu0Seteno K.O. Ntwampe1Elvis Fosso-Kankeu2Felix Nchu3Justine O. Angadam4Bioresource Engineering Research Group (BioERG), Cape Peninsula University of Technology, Cape Town, 8000, South Africa; Department of Horticultural Sciences, Cape Peninsula University of Technology, Bellville Campus, Symphony Way, PO Box 1906, Bellville 7535, South Africa; Corresponding author.Center of Excellence in Carbon-based Fuels, School of Chemical and Minerals Engineering, North-West University, P. Bag X60001 Potchefstroom 2520, South AfricaCenter of Excellence in Carbon-based Fuels, School of Chemical and Minerals Engineering, North-West University, P. Bag X60001 Potchefstroom 2520, South AfricaDepartment of Horticultural Sciences, Cape Peninsula University of Technology, Bellville Campus, Symphony Way, PO Box 1906, Bellville 7535, South AfricaBioresource Engineering Research Group (BioERG), Cape Peninsula University of Technology, Cape Town, 8000, South AfricaA consortium of microbial community was used for the treatment of acid mine drainage wastewater laden with sulphate and heavy metals. The wastewater was treated in an anaerobic continuously stirred tank bioreactor. The microbial community activity increased the pH from 5.6 to 6.5, and improved sulphate removal up to 85% from an initial sulphate concentration of 8080 mg SO42−/L in a continuous mode, following enrichment for 21 d. The maximum heavy metal removal percentage was observed for Cd (98%), Al (97%), Mn (95%), Pb (94%), Sr (94%) and Cu (91%). The microbial community showed synergy between strictly anaerobic and facultative Firmicutes sp., which were responsible for the bioreactor performance. The biochemical reaction indicated the microbial community has a wider range of substrates dominated by metallo-aminopeptidases.http://www.sciencedirect.com/science/article/pii/S240584402101344XAcid mine drainageAminopeptidasesBacillus spp.Sulphate reductionHeavy metal removal
collection DOAJ
language English
format Article
sources DOAJ
author Enoch A. Akinpelu
Seteno K.O. Ntwampe
Elvis Fosso-Kankeu
Felix Nchu
Justine O. Angadam
spellingShingle Enoch A. Akinpelu
Seteno K.O. Ntwampe
Elvis Fosso-Kankeu
Felix Nchu
Justine O. Angadam
Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
Heliyon
Acid mine drainage
Aminopeptidases
Bacillus spp.
Sulphate reduction
Heavy metal removal
author_facet Enoch A. Akinpelu
Seteno K.O. Ntwampe
Elvis Fosso-Kankeu
Felix Nchu
Justine O. Angadam
author_sort Enoch A. Akinpelu
title Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
title_short Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
title_full Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
title_fullStr Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
title_full_unstemmed Performance of microbial community dominated by Bacillus spp. in acid mine drainage remediation systems: A focus on the high removal efficiency of SO42-, Al3+, Cd2+, Cu2+, Mn2+, Pb2+, and Sr2+
title_sort performance of microbial community dominated by bacillus spp. in acid mine drainage remediation systems: a focus on the high removal efficiency of so42-, al3+, cd2+, cu2+, mn2+, pb2+, and sr2+
publisher Elsevier
series Heliyon
issn 2405-8440
publishDate 2021-06-01
description A consortium of microbial community was used for the treatment of acid mine drainage wastewater laden with sulphate and heavy metals. The wastewater was treated in an anaerobic continuously stirred tank bioreactor. The microbial community activity increased the pH from 5.6 to 6.5, and improved sulphate removal up to 85% from an initial sulphate concentration of 8080 mg SO42−/L in a continuous mode, following enrichment for 21 d. The maximum heavy metal removal percentage was observed for Cd (98%), Al (97%), Mn (95%), Pb (94%), Sr (94%) and Cu (91%). The microbial community showed synergy between strictly anaerobic and facultative Firmicutes sp., which were responsible for the bioreactor performance. The biochemical reaction indicated the microbial community has a wider range of substrates dominated by metallo-aminopeptidases.
topic Acid mine drainage
Aminopeptidases
Bacillus spp.
Sulphate reduction
Heavy metal removal
url http://www.sciencedirect.com/science/article/pii/S240584402101344X
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