WWTP Houtrust

Air treatment

WWTP Houtrust is equipped with 3 air treatment installations, one for the pre-treatment area, one for the sludge treatment area and one for the sludge loading area. The first one is a gas scrubber, where air is brought into contact with the air, while chemicals are added. The second one is a biological filter and the air treatment of the sludge loading area comprises of 4 active carbon filters.

The cleaned air, in total 80.000 m3 per hour, is finally discharged through a stack, under stringent emission requirements.