The use of the equipment and method corresponding with this invention makes it possible to implement biotechnological production from biomass-based raw materials cost-effectively at, or in the vicinity of, raw material sources. Only some sections of the reactor used, such as supporting structures and the component needed for arranging lead-tliroughs, are implemented with a hard material, such as steel. Additionally, plastic, paper, or textile or another material of this type is used to construct the reactor frame.
