Next Article in Journal
Identification of Copper in Stems and Roots of Jatropha curcas L. by Hyperspectral Imaging
Next Article in Special Issue
Tetracycline Induces the Formation of Biofilm of Bacteria from Different Phases of Wastewater Treatment
Previous Article in Journal
Zeolite for Potential Toxic Metal Uptake from Contaminated Soil: A Brief Review
Previous Article in Special Issue
Activated Sludge Respiration Activity Inhibition Caused by Mobile Toilet Chemicals
Open AccessFeature PaperArticle

Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature

1
Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
2
Department of Agricultural, Food and Environmental Engineering, Faculty of AgriSciences, Mendel University, 61300 Brno, Czech Republic
3
Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
*
Authors to whom correspondence should be addressed.
Processes 2020, 8(7), 822; https://doi.org/10.3390/pr8070822
Received: 29 June 2020 / Revised: 9 July 2020 / Accepted: 10 July 2020 / Published: 12 July 2020
(This article belongs to the Special Issue Application of Microorganisms in Wastewater Treatment)
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. View Full-Text
Keywords: anaerobic stabilization; sewage sludge; temperature; methanogenic archaea anaerobic stabilization; sewage sludge; temperature; methanogenic archaea
Show Figures

Figure 1

MDPI and ACS Style

Vítěz, T.; Novák, D.; Lochman, J.; Vítězová, M. Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature. Processes 2020, 8, 822. https://doi.org/10.3390/pr8070822

AMA Style

Vítěz T, Novák D, Lochman J, Vítězová M. Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature. Processes. 2020; 8(7):822. https://doi.org/10.3390/pr8070822

Chicago/Turabian Style

Vítěz, Tomáš; Novák, David; Lochman, Jan; Vítězová, Monika. 2020. "Methanogens Diversity during Anaerobic Sewage Sludge Stabilization and the Effect of Temperature" Processes 8, no. 7: 822. https://doi.org/10.3390/pr8070822

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop