Methanogenic community composition in an organic waste mixture in an anaerobic bioreactor

Gryta, Agata; Oszust, Karolina; Brzezińska, Małgorzata; Ziemiński, Krzysztof; Bilińska-Wielgus, Nina; Frąc, Magdalena

doi:10.1515/intag-2016-0057

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…The differences found in methanogens biodiversity between biowaste and biogas residues result from the stage of anaerobic digestion. The composition of methanogens is in consistent with the results of Gryta et al (2017). At the beginning of the process, methanogens inoculum is added to the substrates in order to initialize methanogenesis and thus biogas production.…”

Section: Resultssupporting

confidence: 78%

See 1 more Smart Citation

Characterization of microbial functional and genetic diversity as a novel strategy of biowaste ecotoxicological evaluation

Oszust

Gryta

Ziemiński

et al. 2018

Int. J. Environ. Sci. Technol.

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The goal was to elucidate the importance of the waste properties for effective exploitation in biogas production and for soil application, respectively, based on the physicochemical and microbial characterization of biowaste and the corresponding biogas residues. The following waste media were chosen: fruit waste, dairy sewage sludge, corn silage, grass silage, and grain brew to prepare three co-substrates for anaerobic bioconversion. The most satisfactory biogas yield was obtained from biowaste with the following composition: 25% fruit wastes, 25% dairy sewage sludge, 12% corn silage, and 38% grain brew. The study included functional and genetic diversity assessment through the characterization of the catabolic potential and structure of the microbial communities inhabiting the examined organic wastes and their relative biogas residues. The metabolome was based on the use of a Biolog ® plate. The elucidation of the metagenome employed the genetic structure of prokaryotes and involved denaturing gradient gel electrophoresis and next-generation sequencing analyses. The usefulness of metagenomics was emphasized by ecotoxicological evaluation of biowaste and in determining the accurate start-up community composition for biogas production, highlighting the pivotal role of anammox and hydrolytic bacteria as marker groups. The high importance of the great diversity of fungi was also revealed based on a functional approach.

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Section: Resultssupporting

confidence: 78%

“…Acetate is first oxidized to H 2 and CO 2 and subsequently converted to methane. The occurrence of Methanobrevibacter genus members is typical for fruit waste anaerobic digestion (Gryta et al 2017), as found in the biowaste examined.…”

Section: Resultsmentioning

confidence: 66%

Characterization of microbial functional and genetic diversity as a novel strategy of biowaste ecotoxicological evaluation

Oszust

Gryta

Ziemiński

et al. 2018

Int. J. Environ. Sci. Technol.

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“…5758 described by Karakashev et al (2006). What is more, the high ratio of Methanosaetaceae to Methanosarcinaceae indicated quite a low acetate threshold, growth rate, and yield susceptibility, as previously noted by Gryta et al (2017). On the other hand, it has been observed that Clostridium spp.…”

Section: Discussionmentioning

confidence: 53%

“…The DNA from different types of biomass was extracted using a FAST DNA Spin Kit for Feces (MPBiomedicals, Santa Ana, CA, USA) according to the protocol, as described previously by Gryta et al (2017). The amount of DNA was determined by a NanoDrop® 2000 spectrophotometer (Thermo Scientific™, Waltham, MA, USA).…”

Section: Metagenomic Analysis By Ngs Dna Isolationmentioning

confidence: 99%

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Oszust

Frąc

2018

BioRes

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The purpose of the study was to link microbial community composition and chemical properties of various biomass and their resulting digestate residues for their potential use in biogas production or soil enrichment. The order of biogas production, graded from high to low was as follows: corn silage, grass silage, fruit waste, and dairy sewage sludge. Different bacterial families were predominant in different biomass. Corn silage deteriorated as a result of long-term air exposition and may serve as an efficient feedstock substrate for anaerobic digestion. A positive role in plant biocontrol microorganisms found in grass straw residues, and reasonable biogas yield obtained from this substrate suggests the use of grass straw for biogas production and its residues to enrich the soil. Due to potential threat of introducing pathogens into the soil within fruit waste or dairy sewage sludge, or soil acidification by fruit waste repeated use in field application, this biomass should be sanitized prior to soil application. Simultaneously, low biogas yields from fruit waste and dairy sewage sludge substrates make it necessary to transform them in anaerobic digestion with more energetic co-substrates. Tested residues may deliver a robust and wide range of methanogens as inoculum for further anaerobic digestion process.

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Inhibitors of the methane fermentation process with particular emphasis on the microbiological aspect: A review

Czatzkowska

Harnisz

Korzeniewska

et al. 2020

Energy Science & Engineering

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Methane fermentation is an attractive practice in waste processing, which enables one to both control pollution and recover energy. This kind of anaerobic digestion is exposed to inhibitors, which can retard the process and cause failure. The mechanism causing toxicity of these substances and their impact on the efficiency of the process are already known, but there is still not much information about their influence on methane fermentation microorganisms' activity and the composition of microbiota. In this review, based on 168 articles, we present a summary of the up‐to‐date research on the inhibition of anaerobic processes by some specific toxicants: ammonia, sulfides, ions of light metals, heavy metals, antibiotics, ethylene and acetylene, chlorophenols, halogen aliphatic hydrocarbons, aliphatic nitro compounds, and long‐chain fatty acids. This review principally focuses on the impact of these inhibitors on the microorganisms involved in the process. More accurate recognition of methane fermentation inhibition mechanisms, with particular emphasis on the microbiological aspect, can help to improve the efficiency of the process.

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Methanogenic community composition in an organic waste mixture in an anaerobic bioreactor

Cited by 12 publications

References 26 publications

Characterization of microbial functional and genetic diversity as a novel strategy of biowaste ecotoxicological evaluation

Characterization of microbial functional and genetic diversity as a novel strategy of biowaste ecotoxicological evaluation

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Inhibitors of the methane fermentation process with particular emphasis on the microbiological aspect: A review

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