BIOREACTOR AND METHOD OF CULTURING PHOTOSYNTHESISING MICROORGANISMS USING SAID BIOREACTOR Russian patent published in 2013 - IPC C12M1/04 C12M1/06 C12M1/38 C12M3/00 C12Q3/00 

FIELD: chemistry.

SUBSTANCE: bioreactor has a vessel (1) with a cover (2) and a device for mixing and aerating microorganisms, having pipes (3 and 4) on the cover for inlet of aerating gas and outlet of gaseous medium, respectively. The vessel (1) is fitted with multiple coaxially arranged and spaced apart annular partitions (12 and 13) with floats (14 and 15) which are open at the bottom, on a vertical hollow shaft (11) with possibility of rotation and back-and-forth movement thereon with formation of a gap between the wall of the vessel (1) and the annular partitions (12 and 13). The vessel (1) and the cover (2) of the reactor are made from transparent materials. The bioreactor has a meant (19) of holding the reactor afloat in a liquid medium and sources (20 and 21) of artificial light, which are mounted inside the floats (14 and 15) of the annular partitions (12 and 13). The latter are made from optically transparent material. The vessel is in form of a disposable or reusable dismountable envelope (22) and has means (23 and 24) of fastening it to the cover (2) and the bottom (17) of the vessel, respectively. The method of culturing photosynthesising microorganisms involves creating biochemical and physical conditions for growth of the microorganisms in a culture medium and maintaining culturing temperature conditions. The latter is carried out in the bioreactor, which is immersed and held afloat in a natural or manmade water body at water temperature which is favourable for growth of photosynthesising microorganisms in said water body, wherein the culture medium used is the filtered water from the water body in which the bioreactor is located.

EFFECT: high output of biomass of photosynthesising microorganisms, while reducing power consumption and simplifying maintenance.

6 cl, 1 dwg