Verstopping Biologische Actieve koolfilters Weesperkarspel

In 1987 Amsterdam Water Supply, Waternet, discovered the presence of pesticides in the drinking water. Because of this the production process at Weesperkarspel has changed in 1992. The coagulation and rapid sand filtration are replaced by activated carbon filtration. At Weesperkarspel the activated carbon filters are pre-oxidised by the use of...