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Advanced filtration system to avoid wastewater

Five to ten percent of groundwater extracted for drinking water supply purposes is wasted due to the periodic rinsing of sand filters. The result is called backwash water and contains iron and manganese in the form of suspended solids. This in turn is difficult to purify as the high particle loads result in fouling problems in current installations.

IWEC will set up a full-scale installation at a drinking water company for the treatment and reuse of backwash water as drinking water. The implementation of this technology should result in the annual reuse of 5.1 million m³ of wastewater in the EU two years after the project’s end (2017). Consumption of energy will also be reduced, by 30%.