Article from 28.08.2025 | Last changed: 29.08.2025
Compost and sewage sludge
… far as possible in the future and the phosphorus it contains should be recovered. Environmental impact In addition to nutrients, compost and, above all, sewage sludge … substances, are often not available. Fertilizer legislation In order to minimize environmental hazards, only approved fertilizers may be used. Organic residual …