Interesting facts

Water & waste water
The supply of safe drinking water forms the basis of every civilised society. It ensures the health of humans and animals. In order to protect our natural drinking water resources, wastewater must be purified in treatment plants.

Waste water treatment in sewage treatment plants
The aim of wastewater treatment is to remove the pollutants. These are present in dissolved and particulate form. Wastewater treatment plants (WWTPs) in Switzerland purify wastewater in three to five stages. We offer you a complete range of products for the third treatment stage and comprehensive advice on improving the performance of wastewater treatment plants.

Precipitation, flocculation and filtration
The third stage of wastewater treatment serves to eliminate phosphates in wastewater and to improve the performance of the mechanical and/or biological stage. Precipitation, flocculation, sedimentation and filtration play a role in this.

Phosphates and fish mortality
The phosphorus in our waters comes from agricultural soils and wastewater. Eliminating phosphates improves the oxygen supply to lakes and rivers, which is important for fish to thrive and for water quality.