The Helisol® sludge drying process is a technology at the heart of Saur’s drive to find environmental and economical solutions to operational needs. Based on natural evaporation, Helisol® relies on air and sun properties to remove vapour from the sludge, resulting in more efficient storing and evacuation.
The Helisol® process enables sludge spread on a slab to be dried by sunlight in a green-house like structure, where air pushed through the system picks up excess water vapour from the drying sludge. A ventilation system means the air is regularly replaced and as the sludge and air warm up, a natural ‘greenhouse’ effect makes drying quicker and more efficient.
The key to Helisol® is the combination of the channel turner sludge management software, alongside efficient air renewal which is regulated either by weather conditions or the ventilation system.
The channel turner software is designed to:
Safe and easy to operate - The circulation channels along the greenhouse allow maintenance without contact with the sludge and sampling at all points. For an easy access, the channel turner is positioned in the "dry sludge" area, opposite the sludge feeding zone.
Helisol® from Saur offers two main drying cycles: