Phosphorus is the most valuable nutrient in waste. It is vital for humans and nature and is becoming increasingly valuable as a raw material today.

The degradable, high-quality deposits of phosphorus are limited worldwide. They will run out in about 100 years. In Switzerland, there are no natural phosphorus deposits.

Today, the most important factor in phosphorus turnover in our country is the return of farmyard manure and crop residues to agriculture. However, large quantities of phosphorus have been imported for decades to supply man and nature.