Completed Project
HUBER Belt Dryers for Sewage Sludge in Innsbruck, Austria
With a focus on „maximum energy efficiency“ HUBER SE realised a Belt Dryer BT at the Innsbruck Sewage Treatment Plant within a record time of seven months.
The sewage sludge drying in the capitol city of Tyrol allows two-zone drying on different temperature levels. An innovative heat recovery concept of the belt dryer allows more than 400 kWth can be fed to a district heating network.
With its strategy “from sewage works to power plant”, the Innsbruck wastewater treatment plant sustainably produces energy and intelligently integrates it into its existing system. The aim is to further increase the efficiency of the complete sewage treatment works and make it one of the most modern plants in Europe.
Capacity: | 21.176 t/a |
Dryer: | HUBER Belt Dryer BT 16 |
Drying efficiency: | from 22% DR to 90% DR |
Heat sources: | medium temperature source: biogas block heat and power plant with 90 °C high temperature source: biogas block heat and power plant with 140 °C |
In operation: | since October 2017 |

Statistics
Thermal energy extraction
Detailed case study
IKB (Innsbrucker Kommunalbetriebe AG) invests in a HUBER BT 16 belt dryer. With the strategy "From sewage plant to power plant", IKB's wastewater treatment plant (WWTP) generates energy sustainably and integrates it intelligently into its existing system. The aim is to further increase the efficiency of the entire wastewater treatment plant and thus become one of the most advanced wastewater treatment plants in Europe.
Read full article at huber.de:
Energy-efficient sewage sludge drying at Innsbruck with HUBER Belt Dryer BT