Part of old wastewater treatment plant transferred to new treatment plant Gaarkeuken

Well prepared

The switchover was well prepared with contractors ADS and Strukton and the municipality of Westerkwartier.
On the morning of April 29, we temporarily shut down the sewage pumping stations in Niekerk, Grootegast, and Grijpskerk. This meant that no more sewage flowed through the pipes. Residents could continue to flush their toilets as usual, because we temporarily collected the water in the pipes. The new pipes therefore had to be connected to the new treatment plant within eight hours. And we succeeded!
Another exciting moment was the transfer of the 'active sludge'. These are bacteria that clean up dirty substances in the sewage water. These bacteria were successfully transferred from the old system to the new installation. 

Pipe from Marum follows

The new treatment plant is now in use for sewage from Niekerk, Grootegast, and Grijpskerk. The pipeline from Zuidhorn is also connected, and the one from Marum will follow shortly. By the end of this year, all pipelines will be fully operational.