Manganese removal from acid coal-mine drainage by a pond containing green algae and microbial mat

Phillips, Peter C.B.; Bender, Judith; Simms, R. B.; Rodriguez-Eaton, S.; Britt, Cynthia

doi:10.1016/0273-1223(95)00503-f

Cited by 25 publications

(2 citation statements)

References 3 publications

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“…Cyanobacteria were the only significantly enriched phyla within the settling pond (Supplementary Figure S5) and were identified as orders of previously identified oxygenic photosynthetic blue-green algae: Chlorophyta, Stramenopiles, and Streptophyta (Leipe et al, 1996). The enrichment of Cyanobacteria within the oxidation/settling pond at Middle Branch aligns well with findings from another study where microbial communities in an oxidation pond were also dominated by Cyanobacteria (Phillips et al, 1995). SRBs and SOBs are likely to not be present within the settling pond because it is a highly oxic environment, where it is mechanistically designed to naturally oxidize heavy metals into insoluble solids.…”

Section: Discussionsupporting

confidence: 89%

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Wright²,

Weit

et al. 2019

Front. Microbiol.

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Acid mine drainage (AMD) is an environmental issue that can be characterized by either acidic or circumneutral pH and high dissolved metal content in contaminated waters. It is estimated to affect roughly 3000 miles of waterways within the state of Pennsylvania, with half being acidic and half being circumneutral. To negate the harmful effects of AMD, ∼300 passive remediation systems have been constructed within the state of Pennsylvania. In this study, we evaluated the microbial community structure and functional capability associated with Middle Branch passive remediation system in central PA. Sediment and water samples were collected from each area within the passive remediation system and its receiving stream. Environmental parameters associated with the remediation system were found to explain a significant amount of variation in microbial community structure. This study revealed shifts in microbial community structure from acidophilic bacteria in raw AMD discharge to a more metabolically diverse set of taxa (i.e., Acidimicrobiales, Rhizobiales, Chthoniobacteraceae ) toward the end of the system. Vertical flow ponds and the aerobic wetland showed strong metabolic capability for sulfur redox environments. These findings are integral to the understanding of designing effective passive remediation systems because it provides insight as to how certain bacteria [sulfate reducing bacteria (SRBs) and sulfur oxidizing bacteria (SOBs)] are potentially contributing to a microbially mediated AMD remediation process. This study further supports previous investigations that demonstrated the effectiveness of SRBs in the process of removing sulfate and heavy metals from contaminated water.

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Section: Discussionsupporting

confidence: 89%

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Wright²,

Weit

et al. 2019

Front. Microbiol.

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“…Different technologies may be applied for AMD detoxification using native algae communities. For example, the oxidation pond systems containing cyanobacterial mats employed by Phillips et al [ 222 ] showed a removal rate of up to 2.59 g Mn day −1 m −2 . Bench-scale biological treatment test cells (blue–green algae, predominantly Oscillatoria spp./microbial mat consortium) utilized by Sheoran and Bhandari [ 223 ] were revealed to be a cost-effective treatment technique for removing SO 4 and precipitating metals from AMD.…”

Section: Coal Microalgae Hold Great Biotechnological Potential In Coa...mentioning

confidence: 99%

Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production

Akimbekov

Digel

Tastambek

et al. 2022

Biology

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It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.

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Manganese oxide reduction in laboratory microcosms

Royer

Unz

1999

Mine Water and the Environment

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Manganese removal from acid coal-mine drainage by a pond containing green algae and microbial mat

Cited by 25 publications

References 3 publications

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production

Manganese oxide reduction in laboratory microcosms

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