UNIT FOR CLOSED WATER SUPPLY FOR GROWING FISH Russian patent published in 2023 - IPC A01K61/10 A01K63/04 

FIELD: fish farming.

SUBSTANCE: invention relates to devices with a closed water supply system for the industrial cultivation of commercial fish species. The unit includes a basin comprising a pre-sale preparation section communicated with a flow generation section including an airlift. The flow generation section is connected with the breeding sector, which includes fish-breeding channels, which are compartments separated from each other by concrete partitions, the height of which is above the water level. The breeding sector communicates with the fecal matter separation sector, which is a container with V- or W-shaped traps and at least one valve for draining fecal matter into sewer pipes. The breeding sector communicates with the biofilter, which is an aeration unit with a movable bioload, including a floating load with a bacterial film and at least one diffuser. Behind the biofilter there is a mechanical cleaning sector, which is a container with at least one diffuser and a fixed load, which communicates with a return channel, configured for draining water into the flow generation area. The return channel includes at least one diffuser and at least one ozone lamp.

EFFECT: invention provides simplification of unit operation while maintaining a high degree of water purification.

1 cl, 1 dwg