TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The microorganisms contain a portion of microbiotics mixture. The membrane consists of timber material or wood substitute.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The plant further exhibits: a mechanical and/or biological preparation and/or conditioning stage; at least one hydrolysis reactor; an interconnecting unit for conducting the mass flow and mixing several mass flow among themselves; the reactors for processing/conditioning stages; and a clarifying stage and a dehydration stage. A gas-preparing reactor is arranged before the gas fermenter. In the plant two separate reactors are intended, where the first reactor is used for ethanol/butanol or ethanol/butanol mixture production from a gas/liquid material mixture, and the second reactor is used for an ethanol/butanol or ethanol/butanol mixture production from a liquid/solid material mixture. The gas fermenter and/or the reactor and/or the hydrolysis reactor and/or the biological processing stage and/or the further reactor exhibit a microbiotic mixture from light-emitting and photo-synthetically working microorganisms. In the reactor vessel, a revolving screen (11.2) is rotatably stored, whose extension wall is covered with the membrane and is intended in the built-in-components or an agitator for promoting and mixing the substrate, where the revolving screen is immersed into the fermenting auxiliary material area and ethanol/butanol or ethanol/butanol mixture gas developing during the fermentation passes through the membrane. In the bottom end of the reactor vessel, a membrane separating the fermenting room is arranged and in the top end of the reactor vessel, a gas membrane permeable for ethanol/butanol or ethanol/butanol mixture gas is arranged.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The substrate is pre-treated by mechanical and/or biological processing and/or hydrolysis. The gaseous portion of the mass flow gas is supplied, which develops itself during the mechanical and/or biological processing and/or the hydrolysis. The reactor is equipped with a mass flow in gas/liquid and/or liquid/solid aggregate condition for ethanol/butanol or ethanol/butanol mixture production. The ethanol/butanol or ethanol/butanol mixture production takes place in two separate reactors, where the first reactor carries out ethanol/butanol or ethanol/butanol mixture production from gas/liquid material mixture, and the second reactor carries out ethanol/butanol or ethanol/butanol mixture production from liquid/solid material mixture. The gaseous portion of the mass flow is prepared before introducing into the gas fermenter in a further reactor. The mass flow is mixed among themselves. The gas fermenter, the reactor, the hydrolysis reactor, the biological processing stage and/or the further reactor exhibit a microbiotic mixture made from light emitting and photo-synthetically working microorganisms. The reactor is operated with negative pressure, so that the evaporation temperature in the reactor lies under 70 degrees C, preferably 60-65 degrees C. The substrate is made smaller for the mechanical processing. The microbiological mixture and microorganisms (depending on the type of substrate) suitable for the conversion to glucose, are supplied at least to partial flow for the biological preparation. The biological processing contains a bacterial hydrolysis. The prepared substrate is mixed in a mixer with the microbiotic mixture, which contains a portion of cell membrane-protecting or DNA repairing materials or microorganisms releasing such materials. The fermenting auxiliary materials are supplied over a membrane. The fermenting auxiliary materials are added to a carrier liquid that is not evaporating at fermenting temperature and have a portion of fermentation-inhibiting materials degrading microorganisms or aggregates. The carrier liquid is conducted in a circulatory motion. The fermenting auxiliary materials are activated chemically, physically or biologically. The discharge substrate is supplied to an energetic utilization or is used as animal feed after dehumidifying the solid phase. The liquid phase of the discharge substrate is converted to fermentation gas after dehumidifying the organic portion. In the biogas production, resulting loaded waste water is supplied to a sewage processing. The membrane is immersed into the fermenting auxiliary material area. EXAMPLE - No suitable example given.