The waste water treatment plant in Herisau cleans the waste water of 94% of the population of Herisau. After a number of investments, the treatment plant can now also remove tiny contaminants (so-called micro-pollutants).
Year of execution: 2014
Characteristics and special features:
- In accordance with the new Water Protection Ordinance in Switzerland, 100 wastewater treatment plants are to be equipped with a fourth purification stage for the elimination of trace substances.
- We had the honour of building the first powdered activated carbon plant at a wastewater treatment plant in Switzerland
- In order to operate three dosing points independently of each other, the PAC suspension is prepared in a tank and dosed accordingly via dosing pumps
- PAC dosing capacity: 0 - 60 kg/h
To visit the Gemeinde Herisau website click here.
