Abstract: According to the proposed method for producing biomass, the organisms or cells in a suspension kept in circulation in a photobioreactor are cultivated with introduction of light and of at least CO2 as a nutrient. For the cultivation, the suspension is introduced via at least one introduction organ in an upper region of a culturing space and its downward movement is slowed down by at least one inner element that has a horizontally extending grid, screen or net structure and that is disposed in the culturing space. The suspension is converted into a plurality of drops on this structure. The drops pass through a drop cycle, by means of which the downward movement of the suspension is slowed down and a particularly intensive exposure of the organisms or cells contained in the nutrient solution to nutrients and light introduced into the reactor is assured.

Abstract: A method for the production of extrudates from regenerable raw materials, using biopolymeric and mineral raw materials. The object of the invention is based on providing a method of the generic species, with which it is possible to improve the properties of the biopolymeric carriers, particularly, to prevent their solubility due to the addition of components and to provide bodies, which are resistant to the effects of water and high temperatures, with prerequisites suitable for use in the industries, which process such bodies further.