Microbial degradation of low rank coals

Machnikowska, H.; Pawelec, Kamila; Podgórska, Anna

doi:10.1016/s0378-3820(02)00064-4

Cited by 102 publications

(68 citation statements)

References 7 publications

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“…The selective degradation of hydrogen-rich liptinite was demonstrated to effect methanogenesis from Texas lignite (Barik et al, 1991). Conversely, petrographic analysis by Machnikowska et al (2002) found liptinite concentrated in the biodegradation residues of a Polish subbituminous coal. In a more recent study, solvent extracts from vitrinite-rich Illinois Basin coals were found to contain higher yields of biomarkers than vitrinite-poor coals of similar rank from the same basin, and produced more methane under laboratory conditions, suggesting greater bioavailability (Furmann et al, 2013a(Furmann et al, , 2013b.…”

Section: Bioavailabilitymentioning

confidence: 94%

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Conceptual exploration targeting for microbially enhanced coal bed methane (MECoM) in the Walloon Subgroup, eastern Surat Basin, Australia

Hamilton

Golding

Baublys

et al. 2015

International Journal of Coal Geology

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Section: Bioavailabilitymentioning

confidence: 94%

“…Moreover, laboratory studies have demonstrated specificity between indigenous microbial consortia and coal type in some settings (e.g. Barik et al, 1991;Machnikowska et al, 2002;Midgley et al, 2010). The selective degradation of hydrogen-rich liptinite was demonstrated to effect methanogenesis from Texas lignite (Barik et al, 1991).…”

Section: Bioavailabilitymentioning

confidence: 99%

Conceptual exploration targeting for microbially enhanced coal bed methane (MECoM) in the Walloon Subgroup, eastern Surat Basin, Australia

Hamilton

Golding

Baublys

et al. 2015

International Journal of Coal Geology

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“…The latter mechanism is probably more important in coal-free clays, because kerogen is bound to the mineral matrix (Kříbek et al 1998;Rojík 2004). However, the microbial degradation of both coal and claybound organic matter is reported (Machnikowska et al 2002;Frouz et al 2011a). Our results suggest that fossil organic matter is not very stable and its loss may be important in the overall carbon budget of developing post mining soils.…”

Section: Discussionmentioning

confidence: 99%

Effect of accelerated weathering and leaching on the chemistry and phytotoxicity of coal-mine overburden

Frouz

Zadinová

Mihaljevič

et al. 2014

European Journal of Environmental Sciences

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Overburden weathering may influence its effects on soil development and plant growth. Here, an accelerated-weathering experiment was used to determine how weathering affects the chemistry and toxicity of coal-mine overburden. Seven samples of overburden were collected; two samples were from a heap of partly weathered material, and five from mining pits. In both cases, the most weathered top 10 cm was removed. Samples included coal-rich clays (with > 1% coal) and coal-free clays. The samples were artificially weathered by subjecting them to 20 cycles of drying-rewetting-freezing-thawing. Coal-rich clays that have not been weathered were acidic and toxic to Sinapis alba seedlings, but weathering increased their pH, reduced their conductivity and tended to reduce their phytotoxicity. In contrast, weathering tended to reduce the pH of coal-free alkaline clays. S. alba grew poorly in weathered coal-free clay, but when grown in coal-rich clays it grew better in some substrates whereas others were phytotoxic due to their high As content. Weathering decreased Al, As and Na contents and decreased substrate mass by 1-37%. Overall, these results indicate that weathering changes the properties of overburden in ways that are important for soil development and plant growth but the nature and extent of the changes depend on the initial composition of the substrate.

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“…Not only are fungi able to biotransform lignin, but it has also been reported that some species of bacteria have the same capacity, isolated from samples of coal, such as Escherichia freundii, Pseudomonas rathonis, Pseudomonas fluorescens, Streptomyces setoni, Pseudomonas putida, Bacillus sp., Staphylococcus and Rhodococcus [17][18][19] are able to generate substances with characteristics similar to the HS obtained from LRC by chemical extraction [20]. In a previous study in Colombia, three bacteria (Bacillus mycoides, Acinetobacter baumannii and Microbacterium sp.)…”

Section: Introductionmentioning

confidence: 93%

Assessment of a low rank coal inoculated with coal solubilizing bacteria as an organic amendment for a saline-sodic soil

Cubillos-Hinojosa

Valero

Melgarejo

2015

Chem. Biol. Technol. Agric.

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Background:The objective of this research was to evaluate, in saline-sodic soils, the effect of the application of a low rank coal (LRC), lignite type, along with an inoculation of bacteria that release humified organic matter (HOM) from this type of coal. The soil microbial activity and related coal biosolubilization enzymes mediated by microorganisms were determined along with the chemical variables associated with saline-sodic soils with testing under controlled conditions in a greenhouse.Results: Adding 1 % LRC and the solubilizing coal bacteria: Bacillus mycoides, Acinetobacter baumannii and Microbacterium sp., to a saline-sodic soil led to an increase in the soil respiration, microbiological activity, cation exchange capacity, and activity of the enzymes LiP and Lac. A decrease in the electrical conductivity, sodium adsorption ratio and percent saturation of sodium, except pH, was found. Conclusions:The present findings suggest the possibility of using LRC as a possible organic amendment in salinesodic soil, where the microbial activity can take place to accelerate the biotransformation processes of LRC to contribute to the rehabilitation of these disturbed soils.

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Microbial degradation of low rank coals

Cited by 102 publications

References 7 publications

Conceptual exploration targeting for microbially enhanced coal bed methane (MECoM) in the Walloon Subgroup, eastern Surat Basin, Australia

Conceptual exploration targeting for microbially enhanced coal bed methane (MECoM) in the Walloon Subgroup, eastern Surat Basin, Australia

Effect of accelerated weathering and leaching on the chemistry and phytotoxicity of coal-mine overburden

Assessment of a low rank coal inoculated with coal solubilizing bacteria as an organic amendment for a saline-sodic soil

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