To ensure efficient drying and to avoid formation of odours, the sludge is turned and ventilated up to 20 times a day. The intensity of processing is adapted to the progress of the drying process and to the weather conditions.
This task is handled by our Electric Mole™, which has fully automatic controls and is made entirely of stainless steel.
Worldwide, there are already more than 200 Electric Moles™ in use around the clock in plants with up to 650,000 PE. That makes our process the most widely used, proven solution for solar drying of sewage sludge.