Wastewater contains thermal energy, and we can recover some of this energy with heat pumps.

With our HUBER ThermWin®-system for heat recovery from sewage we withdraw sewage from the sewer, screen it, pump it through above-ground Heat Exchangers, and then return it back into the sewer.

Because we screen and pump the sewage, we can use compact and cost-effective heat exchangers, wherein we generate a well-defined and turbulent flow for efficient heat transfer.

For screening we use a vertical screw screen ROTAMAT® Pumping Stations Screen RoK 4 that is compact and lifts the screening through its vertical auger. Returned sewage flushed the lifted screenings over a chute back into the sewer.