Fertilizer can be made from local resources instead of fossil fuels

The prices of mineral fertilizers are rising. The Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB is working on alternative production methods: Researchers have developed various processes and demonstrated them on a pilot scale to recover nutrients from locally available waste streams. Fertilizers ready for immediate use can be obtained from digestion residues, manure, and wastewater, as the institute will show at IFAT in Munich in early May. This circular approach strengthens supply security and protects water bodies and the climate.