Wastewater

We treat wastewater for 1.2 million people in the Copenhagen metropolitan area at our three treatment plants: Lynetten, Avedøre and Damhusåen.

The wastewater is treated for organic and in-organic solids together with nitrogen and phosporous.

The treated wastewater from Lynetten and Damhusåen is channelled out into the Sound via two 1.5 km-long marine outfalls. Treated wastewater from Avedøre is channelled out into Køge Bay via two 1.1 km-long marine outfalls.

Read more about our utilization of the treated wastewater.

Effluent standards 2021

<strong>Treatment plant</strong> Lynetten Avedøre Damhusåen < or =
<strong>BOD, mg/l</strong> 2.50 2.60 2.70 15.0
<strong>COD, mg/l</strong> 30.00 26.00 27.00 75.00
<strong>N, mg/l</strong> 6.60 5.50 5.50 8.00
<strong>P, mg/l</strong> 0.24 0.44 0.35 1.5