Increasing the yield in agriculture through the use of fertilizers is common practice. As an essential nutrient, phosphate is an important component of fertilizers. However, the undefined use of agricultural residues such as liquid manure and fermentation residues as fertilizers causes phosphate to accumulate in the soil and groundwater.
A recovery of phosphorus/phosphate from agricultural residues therefore makes sense from an ecological point of view. PhosFarm as an interdisciplinary European project therefore aims at recovering phosphate in inorganic form from agricultural residues and additionally from waste of the food industry.