The Swiss Combi® drum drying process is universally recognised as a long term secure route as an economic solution for the treatment of municipal liquid wastes. The treatment produces a granular product that is suitable for agriculture, arboriculture and energy production.

The unique closed loop drying system produces a high quality granular product from both raw and treated sludges. A complete turnkey operation requiring no additional equipment – this well established process has flexibility and quality at its core.