Insights into coupling between in-situ coalbed water geochemical signatures and microbial communities

Wang, Qiong; Xu, Hao; Tang, Dazhen; Ren, Pengfei

doi:10.1016/j.coal.2022.104026

Cited by 6 publications

(3 citation statements)

References 71 publications

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“…Moreover, the shore sediments almost always contained bacterial communities resistant to heavy metal stress ( Luteolibacter and Maricaulis ). Luteolibacter has been considered to be a hydrolytic bacteria involved in the dissolution of metals and the decay of polycyclic aromatic hydrocarbon [ 70 , 71 , 72 ]. Maricaulis possesses membrane-bound proteins able to transport metals [ 73 , 74 ].…”

Section: Discussionmentioning

confidence: 99%

Anomalous Gold Concentrations in Hypersaline Wetland Sediments (Laguna Honda, South Spain) Caused by Nanoparticles Used in Agricultural Practices: Environmental Transformation

Medina-Ruiz,

Jiménez-Millán,

Abad

et al. 2024

Toxics

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Illite-rich sediments from the Laguna Honda wetland, an eutrophicated hypersaline wetland with waters enriched in Mg and Ca surrounded by olive groves in the Guadalquivir Basin River (South Spain), are polluted by elevated concentrations of gold (up to 21.9 ppm) due to agricultural practices. The highest gold contents appear in the shore sediments of the lake, where up to 20 µm homoaggregates of fused gold nanoparticles (AuNp) are found. Small nanoaggregates of up to six fused gold nanoparticles and very few isolated nanoparticles around 1 nm in size can also be observed to form heteroaggregates of AuNp-mica, especially in the deeper sediments in the central part of the wetland, where Au concentrations are lower (up to 1.89 ppm). The high nanoparticle concentration caused by the inappropriate application of pesticides favors nanoparticle collision in the wetland’s Mg- and Ca-rich waters and the fast coagulation and deposition of Au homoaggregates in the gold-rich shore sediment of the lake. The interaction of gold nanoparticles with the abundant illite particles in the wetland’s hypersaline waters promotes the simultaneous formation of low-density Au-illite heteroaggregates, which are transported and deposited in the less-rich-in-gold sediments of the central part of the lake. The small sizes of the isolated AuNp and AuNp-fused contacts of the aggregates suggest modifications in the original nanoparticles involving dissolution processes. The presence of bacterial communities resistant to heavy metal stress (Luteolibacter and Maricaulis), as well as the activity of sulfate-reducing bacteria (SRB) and particularly sulfur-oxidizing bacteria (SOB) communities from the shore sediments, favored the high-Eh and low-pH conditions adequate for the destabilization and transport of AuNp.

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Section: Discussionmentioning

confidence: 99%

Anomalous Gold Concentrations in Hypersaline Wetland Sediments (Laguna Honda, South Spain) Caused by Nanoparticles Used in Agricultural Practices: Environmental Transformation

Medina-Ruiz,

Jiménez-Millán,

Abad

et al. 2024

Toxics

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“…The depositional environment and post-depositional processes are factors that affect the chemical content of subsurface coalbed-produced water. Therefore, the chemical characteristics of subsurface water vary with geography, hydrogeology, methane formation pathway, location, depth, and coal type ( 77 , 84 – 86 ). The concentrations of TEs in produced water depend the on leaching of TEs from coal to produced water, groundwater recharge and circulation, the adsorption of TEs to coal, the redox potential of the subsurface environment, and the pH and the depth of coal formations ( 80 , 82 , 83 ).…”

Section: Discussionmentioning

confidence: 99%

“…The synthesis and activity of hydrogenase, which plays a role in anaerobic biodegradation pathways of coal to methane, was significantly enhanced by Fe 2+ supplementation, but the effects of other TEs were not reported in this study ( 22 ). In a study by Wang et al ( 77 ) in southern Junggar Basin, China, Methanothrix was associated with a high Mo concentration, and Methanolobus was closely associated with high concentrations of Li, Sc, Cs, and Mn. However, this study did not investigate the effects of essential TEs on coal-associated microorganisms or the effects of TEs on biogenic methane production.…”

Section: Introductionmentioning

confidence: 96%

Selective trace elements significantly enhanced methane production in coal bed methane systems by stimulating microbial activity

Chin,

Ünal,

Sanderson

et al. 2024

Microbiol Spectr

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Trace elements are associated with the microbial degradation of organic matter and methanogenesis, as enzymes in metabolic pathways often employ trace elements as essential cofactors. However, only a few studies investigated the effects of trace elements on the metabolic activity of microbial communities associated with biogenic coalbed methane production. We aimed to determine the effects of strategically selected trace elements on structure and function of active bacterial and methanogenic communities to stimulate methane production in subsurface coalbeds. Microcosms were established with produced water and coal from coalbed methane wells located in the Powder River Basin, Wyoming, USA. In initial pilot experiments with eight different trace elements, individual amendments of Co, Cu, and Mo lead to significantly higher methane production. Transcript levels of mcrA , the key marker gene for methanogenesis, positively correlated with increased methane production. Phylogenetic analysis of the mcrA cDNA library demonstrated compositional shifts of the active methanogenic community and increase of their diversity, particularly of hydrogenotrophic methanogens. High-throughput sequencing of cDNA obtained from 16S rRNA demonstrated active and abundant bacterial groups in response to trace element amendments. Active Acetobacterium members increased in response to Co, Cu, and Mo additions. The findings of this study yield new insights into the importance of essential trace elements on the metabolic activity of microbial communities involved in subsurface coalbed methane and provide a better understanding of how microbial community composition is shaped by trace elements. IMPORTANCE Microbial life in the deep subsurface of coal beds is limited by nutrient replenishment. While coal bed microbial communities are surrounded by carbon sources, we hypothesized that other nutrients such as trace elements needed as cofactors for enzymes are missing. Amendment of selected trace elements resulted in compositional shifts of the active methanogenic and bacterial communities and correlated with higher transcript levels of mcrA . The findings of this study yield new insights to not only identify possible limitations of microbes by replenishment of trace elements within their specific hydrological placement but also into the importance of essential trace elements for the metabolic activity of microbial communities involved in subsurface coalbed methane production and provides a better understanding of how microbial community composition is shaped by trace elements. Furthermore, this finding might help to revive already spent coal bed methane well systems with the ultimate goal to stimulate methane production.

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Degradation metabolic pathway of low-rank coal using single hydrolytic bacteria

Xia,

Niu,

Tian

et al. 2024

Fuel

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Insights into coupling between in-situ coalbed water geochemical signatures and microbial communities

Cited by 6 publications

References 71 publications

Anomalous Gold Concentrations in Hypersaline Wetland Sediments (Laguna Honda, South Spain) Caused by Nanoparticles Used in Agricultural Practices: Environmental Transformation

Anomalous Gold Concentrations in Hypersaline Wetland Sediments (Laguna Honda, South Spain) Caused by Nanoparticles Used in Agricultural Practices: Environmental Transformation

Selective trace elements significantly enhanced methane production in coal bed methane systems by stimulating microbial activity

Degradation metabolic pathway of low-rank coal using single hydrolytic bacteria

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