MACROPHYTE CULTURE DEVICE Russian patent published in 2015 - IPC A01G33/00 A01H13/00 

FIELD: physics.

SUBSTANCE: macrophyte culture device with a working space providing a height to width relation of at least 1.5 having bottom cross-sections in the form of a fourth to a sixth of the cylinder section adjoining high side walls at a right angle, and lower walls made of a light-proof material, provided with long air duct perforations, nutrient medium feed nozzles and draining slots, gas exchanger, a pH control unit with pH sensors and a kit of signal electrodes, a switch, an actuator mechanism for carbon dioxide feed into the gas exchangers, lighting fixtures with a vertical kit of luminescent lamps, which are surrounded by a group of working spaces, additionally provided with axially rotating rotors with their axes fastened to the end walls with six spring-loaded air-filled rotary blades made of a translucent material, and auxiliary air duct perforations with independent air feed control, in their bottom parts.

EFFECT: with considerably reducing carbon dioxide and compressed air consumption, the device enables using light power effectively and reducing its cost price with maintaining the high specific productivity.