Suppression of Methane Generation during Methanogenesis by Chemically Modified Humic Compounds

Antioxidants
Elena EfremenkoIrina Perminova

Abstract

The introduction of various concentrations of chemically modified humic compounds (HC) with different redox characteristics into the media with free and immobilized anaerobic consortia accumulating landfill gases was studied as approach to their functioning management. For this purpose, quinone (hydroquinone, naphthoquinone or methylhydroquinone) derivatives of HC were synthesized, which made it possible to vary the redox and antioxidant properties of HC as terminal electron acceptors in methanogenic systems. The highest acceptor properties were obtained with potassium humate modified by naphthoquinone. To control possible negative effect of HC on the cells of natural methanogenic consortia, different bioluminescent analytical methods were used. The addition of HC derivatives, enriched with quinonones, to nutrient media at concentrations above 1 g/L decreased the energetic status of cells and the efficiency of the methanogenesis. For the first time, the significant decrease in accumulation of biogas was reached as effect of synthetic HC derivatives, whereas both notable change of biogas composition towards increase in the CO2 content and decrease in CH4 were revealed. Thus, modification with quinones makes it possible to obtain...Continue Reading

References

Jul 27, 2010·Journal of Photochemistry and Photobiology. B, Biology·João M M Leitão, Joaquim C G Esteves da Silva
Apr 3, 2012·Environmental Science & Technology·Michael AeschbacherMichael Sander
Dec 2, 2014·Archives of Toxicology·Albert Braeuning
Feb 13, 2016·Luminescence : the Journal of Biological and Chemical Luminescence·Elena N EfremenkoAnvar D Ismailov
May 18, 2016·New Biotechnology·Nikolay Stepanov, Elena Efremenko
Feb 17, 2018·Waste Management·Ehsan Fathi AghdamPeter Kjeldsen
Mar 29, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Maria V ZykovaMark T Quinn
Jan 21, 2019·Waste Management·Jacob MønsterCharlotte Scheutz
May 8, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Olga SenkoElena Efremenko
Nov 27, 2019·Foods·Monika SwatAnna Gliszczyńska-Świgło
Dec 18, 2019·International Journal of Environmental Research and Public Health·Magdalena Daria VaverkováAnna Podlasek

❮ Previous
Next ❯

Methods Mentioned

BETA
chemical modification

Software Mentioned

NetChrom

Related Concepts

Related Feeds

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.

© 2021 Meta ULC. All rights reserved