A standardized device for the complete biological treatment of liquid waste produced by smaller communities, hotels, holiday resorts, army barracks, camps, schools, food industry, etc. The degree of disintegration of organic matter is over 95%, also, the procedure to eliminate nitrogen and phosphorus is available on request.

The device is entirely automated, with minimum expenses of running and maintenance. The device is built as an integrated round basin covered by a stepping grid, placed in the direction of the sewage, and there is no need for a pumping station. The device contains no movable parts (the blow-pipe and the electro-cabinet are in a separate room) hence the unlimited duration. All the materials are resistant to the aggressive matter.