The Vertical helicoidal conveyor screen TORNADO is combined equipment for the separation of solids in the waste water and their posterior compacting.
The solid material in suspension in the transporting liquid deposits itself in the screen blocking it and causing a raise in the upwards water level and a drop of the downwards water level.
At that moment the helix starts to work, cleans the screen, brings the material up, it dehy-drates it and it compacts it.