VÍTĚZ, Tomáš, David NOVÁK, Jan LOCHMAN and Monika VÍTĚZOVÁ. Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature. Processes. Basel: MDPI, 2020, vol. 8, No 7, p. 1-12. ISSN 2227-9717. doi:10.3390/pr8070822.
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Basic information
Original name Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature
Authors VÍTĚZ, Tomáš (203 Czech Republic, belonging to the institution), David NOVÁK (203 Czech Republic, belonging to the institution), Jan LOCHMAN (203 Czech Republic, belonging to the institution) and Monika VÍTĚZOVÁ (203 Czech Republic, guarantor, belonging to the institution).
Edition Processes, Basel, MDPI, 2020, 2227-9717.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 20801 Environmental biotechnology
Country of publisher Switzerland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 2.753 in 2019
RIV identification code RIV/00216224:14310/20:00115954
Organization unit Faculty of Science
Doi http://dx.doi.org/10.3390/pr8070822
UT WoS 000558047400001
Keywords in English anaerobic stabilization; sewage sludge; temperature; methanogenic archaea
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 12/5/2021 16:26.
Abstract
Anaerobic sludge stabilization is a commonly used technology. Most fermenters are operated at a mesophilic temperature regime. Modern trends in waste management aim to minimize waste generation. One of the strategies can be achieved by anaerobically stabilizing the sludge by raising the temperature. Higher temperatures will allow faster decomposition of organic matter, shortening the retention time, and increasing biogas production. This work is focused on the description of changes in the community of methanogenic microorganisms at different temperatures during the sludge stabilization. At higher temperatures, biogas contained a higher percentage of methane, however, there was an undesirable accumulation of ammonia in the fermenter. Representatives of the hydrogenotrophic genus Methanoliea were described at all temperatures tested. At temperatures up to 50 °C, a significant proportion of methanogens were also formed by acetoclastic representatives of Methanosaeta sp. and acetoclastic representatives of the order Methanosarcinales. The composition of methanogens in the fermenter significantly changed at 60 °C when typically thermophilic species, like Methanothermobacter marburgensis, appeared. A decrease in the diversity of methanogens was observed, and typical hydrogenotrophic methanogenic archaea isolated from fermenters of biogas plants and anaerobic wastewater treatment plants represented by genus Methanoculleus were no longer present.
Links
MUNI/A/0947/2019, internal MU codeName: Podpora výzkumné činnosti studentů Mikrobiologie a molekulární biotechnologie 4 (Acronym: SV2020)
Investor: Masaryk University, Grant Agency of Masaryk University, Category A
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