Longevity of organic layers of vertical flow ponds for sulfate reduction in treating mine drainages in South Korea

Cheong, Young‐Wook; Hur, Won; Yim, Gil-Jae; Ji, Sangwoo; Yang, Jae-E.; Baek, Hwanjo; Shim, Yon-Sik

doi:10.1007/s10653-011-9404-4

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…Shifts in microbial community structure from raw AMD to those of the treatment system could be attributed to the physiochemical changes of TOC (total organic carbon) and sulfate content occurring within the SAPS (Figure 3A and Supplementary Figures S3A, S8, and Supplementary Table S2). High concentrations of TOC in SAPS correspond with physicochemical properties of organic matter layers integrated within these remediation structures (Cheong et al, 2012). Carbon limitation can also be a regulator of sulfate reduction in acidic mining lakes (Blodau, 2006), explaining the increase in SRB activity with higher TOC.…”

Section: Discussionmentioning

confidence: 99%

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: Discussionmentioning

confidence: 99%

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Wright²,

Weit

et al. 2019

Front. Microbiol.

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Performance and bacterial communities of successive alkalinity-producing systems (SAPSs) in passive treatment processes treating mine drainages differing in acidity and metal levels

Kim

Cheong

Yim

et al. 2013

Environ Sci Pollut Res

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Successive alkalinity-producing systems (SAPSs) is a key unit process in the passive treatment of acidic mine drainage. Physico-chemistry and pyrosequencing-based bacterial communities of two passive treatment processes in Gapjung (GJ) and Seokbong (SB) were analyzed. The influent of SB harbored higher levels of acidity and metals than that of GJ. SAPS-SB demonstrated better performance of acidity neutralization and metal removal than SAPS-GJ, despite its shorter hydraulic retention time and higher acidity. System diagnosis revealed that the capacities of SAPSs were not well predicted in the design steps. Bacterial diversity indices and composition were compared at the same sequence read number for fair evaluation. Most of the bacterial sequences were affiliated with uncultured species. A notable difference was observed in the bacterial community compositions of the SAPSs in GJ and SB. Classes of putative sulfate-reducing bacteria, Clostridia (8.3 %) and Deltaproteobacteria (6.1 %), were detected in SAPS-GJ, and Clostridia (14.6 %) was detected in SAPS-SB. Bacilli, which is not a known sulfate-reducing bacterial group, was the second largest class (12.8 %) in SAPS-GJ and the largest class (51.1 %) in SAPS-SB, suggesting that Bacilli may have a prominent role in SAPS. One hundred ninety operational taxonomic units were shared, which occupied ~10 % of each number of total operational taxonomic units in SAPS-GJ and SAPS-SB, respectively. Bacilli and Clostridia were the major shared classes, and Bacillus, Lysinibacillus, and Ureibacillus were the major shared genera. Rarefaction analysis, richness estimates, diversity estimates, and abundance rank analysis show that the sediment bacterial community of SAPS-GJ was more diverse and more evenly distributed than that of SAPS-SB.

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Biological leaching of metal contaminated substrates from a passive bioreactor treating mine drainage

Bailey

2018

Environ. Sci.: Water Res. Technol.

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Longevity of organic layers of vertical flow ponds for sulfate reduction in treating mine drainages in South Korea

Cited by 4 publications

References 16 publications

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Performance and bacterial communities of successive alkalinity-producing systems (SAPSs) in passive treatment processes treating mine drainages differing in acidity and metal levels

Biological leaching of metal contaminated substrates from a passive bioreactor treating mine drainage

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