There is an increasing demand for ecologically responsible nutrients such as renewable phosphate sources. Until now, the industrial and agricultural sector has always focused on allowing waste water and process water to flow back into the environment as cleanly as possible. The substances then filtered from the process water often have a complex composition and are now often landfilled, but this residue still contains valuable nutrients such as nitrogen, potassium and phosphorus. These elements can be recovered in circular processes and then reused in agriculture and horticulture, Laboraad B.V. developed these circular methods that enable recovery of these nutrients from waste streams.