Microbiology, Antibiotics and Public Health

Dainius Paliulis is an assoc prof of Environmental protection in Vilnius Gediminas technical university. Scientists are implementing a project called: “Small-sized

bioreactor with three-phase system for biogas production and treatment research and development”. This research was funded by a grant (No. S-MIP-17-20)

from the Research Council of Lithuania.

Bioreactor-special device is used for biogas production from various organic materials under anaerobic

conditions. In this research, a batch bioreactor with a mechanical mixer was used for biogas production from

sewage sludge and chicken manure bioloadings. The process of anaerobic digestion was mesophilic (35oC). Produced

biogas was stored in a gasholder and the concentration of its components was measured with INCA 4000 biogas

analyser. Also, a specific additive (pine wood biochar) was applied to prepare bioloadings. The application of wood

biochar in bioloading increases the CH4 concentration in the produced gas by 6-7%. The highest concentrations of

CH4 were found in biogas produced during the decomposition of sewage sludge bioloadings. The maximum CH4

reached 77.4%. Studies have shown that the application of biochar in bioloadings also reduces average CO2 and H2S

concentrations in biogas.