Submitted by: Sonnenerde Gerald Dunst Kluturerden GmbH
Implemented country: Austria
Title: Fabrication of High-Quality Soil from Sewage Sludge
Sewage sludge is transformed into high-quality products with minimal loss of ingredients in order to keep these in the biological cycle. The next step includes the changeover to vegetable oil for all machines, which enables CO2 neutral production from local sources. Sewage sludge contains a high amount of nutrients and organic ingredients and consists of 80% water, but is not ready for use in agriculture; all impurities such as plastic and glass have to be eliminated in order to guarantee best quality. The generated composts of rural areas are competitive with lopping composts, and the high water concentration can be regulated optimally by natural processes without energy usage.