Methanogenic potential of lignites in Poland

Szafranek-Nakonieczna, Anna; Zheng, Yongnian; Słowakiewicz, Mirosław; Pytlak, Anna; Polakowski, Cezary; Kubaczyński, Adam; Bieganowski, Andrzej; Banach, Artur; Wolińska, Agnieszka; Stępniewska, Zofia

doi:10.1016/j.coal.2018.07.010

Cited by 27 publications

(10 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the bioreactor environment is acidic, micro niches with an alkaline or neutral pH cannot be excluded. This is in agreement with the other study, which posted that pH is one of the main factors limiting coal-bed methane formation in a long-time perspective (Szafranek-Nakonieczna et al, 2018).…”

Section: Phylumsupporting

confidence: 94%

Lignite biodegradation under conditions of acidic molasses fermentation

Detman

Bucha

Simoneit

et al. 2018

International Journal of Coal Geology

View full text Add to dashboard Cite

Lignite is difficult to degrade, thus stimulation of the autochthonous lignite microflora and introduction of additional microorganisms are required for lignite decomposition. Here, a packed bed reactor, filled with lignite samples from the Konin region (central Poland) was supplied continuously with M9 medium, supplemented with molasses (a by-product from the sugar industry), for 124 days to stimulate the autochthonous lignite microflora. Acidic fermentation of molasses was observed in the bioreactor. The simultaneous decomposition of lignite occurred under this acidic molasses fermentation condition. Our results show decay of free (non-bound) organic compounds during anaerobic lignite biodegradation. The concentrations of n-alkanes, n-alkanols, n-alkanoic acids, diterpenoids, triterpenoids and steroids present in non-biodegraded samples decreased significantly (some compounds to zero) during biodegradation. Interestingly, other compound classes like phenols, ketones and certain organic compounds increased. We interpret this phenomenon as a gradual decomposition of polymers, lignin and cellulose, present in the lignite. These changes resulted from microbial activity since they were not observed in pure solutions of short-chain fatty acids. The 16SrRNA profiling of the microbial community selected in the bioreactor revealed that the dominant bacteria belonged to the Firmicutes, Actinobacteria, Proteobacteria and Bacteroidetes, furthermore representatives of 16 other phyla were also found. All the known taxa of lignocellulolytic bacteria were represented in the microbial community. Synergistic relations between bacteria fermenting molasses and bacteria degrading lignite are assumed. The results confirm lignin degradation in acidic medium by bacteria under anaerobic conditions.

show abstract

Section: Phylumsupporting

confidence: 94%

Lignite biodegradation under conditions of acidic molasses fermentation

Detman

Bucha

Simoneit

et al. 2018

International Journal of Coal Geology

View full text Add to dashboard Cite

show abstract

“…Before biogasification of lignite can be used directly in the deposit, it must undergo rigorous laboratory tests (e.g., Ritter et al, 2015). It should be noted that research into biogasification of lignite in Poland has accelerated in recent years (e.g., Bucha et al, 2018;Detman et al, 2018 andSzafranek-Nakonieczna et al, 2018, and references therein).…”

Section: Discussionmentioning

confidence: 99%

“…1; Kasiński & Piwocki, 2002;Kasiński et al, 2006;Kasiński, 2010;Kasztelewicz, 2014;Widera et al, 2016). Methods other than conventional (opencast) ways of mining lignite in Poland have already receive a lot of attention in the literature (e.g., Stańczyk et al, 2011;Kasiński et al, 2012;Kasztelewicz et al, 2013;Matl et al, 2014;Bielowicz, 2016;Urbański & Saternus, 2017;Bucha et al, 2018;Detman et al, 2018;Szafranek-Nakonieczna et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Is the Złoczew lignite deposit geologically suitable for the first underground gasification installation in Poland?

Urbański

Widera

2020

Geologos

View full text Add to dashboard Cite

The present study focuses on alternative methods of exploiting lignite in comparison to conventional opencast mining and combustion in power plants for the generation of electricity. In Poland, opencast lignite pits cover large areas, creating social and environmental conflicts. In order to stabilise the production level of electricity and reduce the negative effects of opencast mining, alternative ways of exploiting lignite are suggested, one of these being underground gasification in situ. The Złoczew lignite deposit, which will most likely be exploited in the near future, provides an opportunity to discuss the unconventional method of underground coal gasification (UCG). On the basis of technological and geological criteria that have been established to determine the suitability of Polish lignite for underground gasification, resources to be used this way have been estimated. Through gasification, over 15 million tonnes of lignite can be utilised, which is about 2.5 per cent of resources of the Złoczew deposit intended for opencast mining. With this in mind, we suggest to take action by starting a pilot installation, to be followed by a commercial one for underground gasification after completion of superficial mining. Naturally, any future application of this method will be preceded by assessment of geological conditions at the Złoczew opencast pit.

show abstract

“…Stable carbon isotopic analyses of CO 2 and CH 4 were carried out using an isotope ratio mass spectrometer (IRMS) ThermoElectronics DELTA V Advantage with a continuous gas flow connected to an Automated Trace Gas Pre-Concentrator (Thermo Electronics) as described previously [ 29 ]. δ 13 C values are reported as ‰ on the Peedee belemnite (PDB) scale.…”

Section: Methodsmentioning

confidence: 99%

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Goraj

Szafranek-Nakonieczna

Grządziel

et al. 2021

Biology

Self Cite

View full text Add to dashboard Cite

Methane and carbon dioxide are one of the most important greenhouse gases and significant components of the carbon cycle. Biogeochemical methane transformation may occur even in the extreme conditions of deep subsurface ecosystems. This study presents methane-related biological processes in saline sediments of the Miocene Wieliczka Formation, Poland. Rock samples (W2, W3, and W4) differed in lithology (clayey salt with veins of fibrous salt and lenses of gypsum and anhydrite; siltstone and sandstone; siltstone with veins of fibrous salt and lenses of anhydrite) and the accompanying salt type (spiza salts or green salt). Microbial communities present in the Miocene strata were studied using activity measurements and high throughput sequencing. Biological activity (i.e., carbon dioxide and methane production or methane oxidation) occurred in all of the studied clayey salt and siltstone samples but mainly under water-saturated conditions. Microcosm studies performed at elevated moisture created more convenient conditions for the activity of both methanogenic and methanotrophic microorganisms than the intact sediments. This points to the fact that water activity is an important factor regulating microbial activity in saline subsurface sediments. Generally, respiration was higher in anaerobic conditions and ranged from 36 ± 2 (W2200%t.w.c) to 48 ± 4 (W3200%t.w.c) nmol CO2 gdw−1 day−1. Methanogenic activity was the highest in siltstone and sandstone (W3, 0.025 ± 0.018 nmol CH4 gdw−1 day−1), while aerobic methanotrophic activity was the highest in siltstone with salt and anhydrite (W4, 220 ± 66 nmol CH4 gdw−1 day−1). The relative abundance of CH4-utilizing microorganisms (Methylomicrobium, Methylomonas, Methylocystis) constituted 0.7–3.6% of all taxa. Methanogens were represented by Methanobacterium (0.01–0.5%). The methane-related microbes were accompanied by a significant number of unclassified microorganisms (3–64%) and those of the Bacillus genus (4.5–91%). The stable isotope composition of the CO2 and CH4 trapped in the sediments suggests that methane oxidation could have influenced δ13CCH4, especially in W3 and W4.

show abstract

Methanogenic potential of lignites in Poland

Cited by 27 publications

References 82 publications

Lignite biodegradation under conditions of acidic molasses fermentation

Lignite biodegradation under conditions of acidic molasses fermentation

Is the Złoczew lignite deposit geologically suitable for the first underground gasification installation in Poland?

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Contact Info

Product

Resources

About