Recovering phosphorous from sewage sludge — on site
The most promising phosphorus-recycling methods, in terms of sustainability, conservation of resources, effectivity and long-term cost-efficiency, are those processes in which phosphorus is recovered from sewage sludge directly on site. One such process has been developed by this company in cooperation with the CUTEC research center at the Clausthal University of Technology. It can be adapted to different recycling capacities and will be ready for commercial use in 2023. The recycling system can be added to a wastewater treatment plant, eliminating the need for transportation of the sewage sludge. The sludge is dried on-site and the phosphorus recovered — without incineration and ash storage and without using chemicals. The sewage sludge is fully utilized, generating marketable products. Recycled phosphoric acid, for instance, has a wide range of applications in a variety of industries. The process requires very little space and can be scaled to suit different recycling capacities, making it suitable for municipalities of all sizes. Hall B2, Stand 127/226 — Grenzebach BSH GmbH, Bad Hersfeld, Germany