TECHNOLOGY FOCUS - BIOLOGY - Preferred Method: The endogenous flora of domestic waste contains populations of bacteria of Bacilli class during the fermentation in the anaerobic reactor at temperatures of 15-50 degrees C, when the pH is 6.5. The population of bacteria of the Bacilli class is at least 60%, preferably at least 80% of the total bacterial population in the anaerobic reactor, where the measurement is made by ribosomal DNA sequencing and phylogenetic affiliation of the sequences performed by bioinformatics analysis using Quantitative Insights Into Microbial Ecology (QIIME) software. The fermentation in the anaerobic reactor is adjusted to a temperature of 50-80 degrees C, resulting in the population of bacteria containing genus Thermoanaerobacter.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The fermentation of organic waste containing biodegradable materials, fermentable materials and lignocellulosic materials from domestic waste is carried out with essentially endogenous flora of the reactor, preferably flora of organic waste from domestic waste. The organic waste fed into the anaerobic reactor contains at least 20 wt.%, preferably at least 25 wt.% of fermentable fraction and lignocellulosic materials (fraction measured in the dry state). The interruption of the fermentation is carried out until the pH of the liquid fraction is 5.8, preferably 6. The fermentation is conducted with total or partial immersion in water of organic waste placed in the reactor. The immersion water is buffered to a pH of 6-9, preferably 6.5-8. The fermentation is carried out under continuous or intermittent spraying and percolation of water through organic waste placed in the reactor. The spray water is buffered to a pH of 6-9, preferably 6.5-8, preferably with recirculation of water of spraying and percolation through organic waste during fermentation inside the reactor. The step of concentration or separation of the ethanol from the liquid fraction is carried out by a technique comprising distillation, pervaporation, or gas stripping. The energy required to the optional step of regulating the temperature of the anaerobic reactor and/or the step of the concentration or separation of ethanol is provided by the energy produced by treatment operation or storage of the solid fraction of fermented, partially fermented or unfermented organic waste. The treatment operation or storage is carried out in a digester including an incinerator or the storage center with recovery and use of biogas. EXAMPLE - No suitable example given.