Two sewage treatment plants, one reliable partner: HUBER machines on the Nuremberg I and Nuremberg II STP
The city of Nuremberg has two sewage treatment plants in the city centre. One is the Nuremberg I STP on Adolf-Braun-Straße and the other is Nuremberg II on Gertrudstraße. Both plants process the wastewater of the city of Nuremberg and rely on HUBER's sustainable and efficient machine technology, particularly for mechanical pre-treatment of the wastewater. At STP I, the screen and grit chamber are from HUBER, and the screening system at StP II is also from HUBER.
In the past, HUBER had already supplied several of its WAP® wash presses to the two sewage treatment plants. This provided valuable insights into the process requirements of the plants.
Project start at Nuremberg I Sewage Treatment Plant
Consequently, HUBER was involved in the planning for the conversion of the Nuremberg I STP by the engineering firm Arnold from Kissing as early as 2016. After winning the tender in 2018 and being awarded the contract, the 3-line conversion was gradually implemented in 2019 during ongoing operations.
HUBER machines installed in STP I
The following machinery was installed:
- 3 coarse screens – HUBER Multi-Rake Bar Screen RakeMax® 6080x1575, 30 mm bar spacing, 2200 l/s maximum flow, incl. HUBER Safety Vision for contaminant detection each
- 3 fine screens – HUBER Multi-Rake Bar Screen RakeMax® J 7040x1775, 6 mm bar spacing
- 9 HUBER Screw Conveyor Ro8 T units, size 355
- 3 HUBER Screenings Wash Press WAP® 8 S HD units with mechanical high pressure unit each
Optimisation of screenings treatment
To further optimise screenings treatment and enable automatic filling of the on-site screenings collection containers, three HUBER Tipping Troughs, DN 500, were subsequently installed on the discharge pipes of the screenings wash presses.
In addition, HUBER was awarded the contract in 2021 to supply and install two HUBER COANDA Grit Washer RoSF4 size 3-Special, V4A, 40 l/s.
Renovation at the Nuremberg II Sewage Treatment Plant
After completion of the work at STP I, the next phase of the project was the expansion and renovation of the mechanical pre-treatment stage (screens and screenings treatment) at the Nuremberg II STP. Here too, HUBER won the tender and was delighted to be awarded the contract in 2023 for:
- 2 coarse screens – HUBER Multi-Rake Bar Screen RakeMax® 3840x2275, 40 mm bar spacing, 2000 l/s maximum flow, incl. HUBER Safety Vision for contaminant detection each
- 2 fine screens – HUBER Multi-Rake Bar Screen RakeMax® J 3840x2275, 6 mm bar spacing
- 2 HUBER Screw Conveyor Ro8 T units, size 355
- 4 HUBER Screenings Wash Press WAP® 4 S HD units with high pressure unit each
Installation under special conditions
The installation at STP II proved to be particularly challenging. Since the large screens could only be installed via the roof and due to the enormous overhang, the installation could only be carried out with a 100-tonne crane.
We would like to express our sincere thanks to the operating personnel at the plants. HUBER also benefited from the experienced staff through their constructive and intensive cooperation in the project work described. In particular, the in-house electrical engineering team gained a thorough understanding of the HUBER technology through the programming work and optimised some of the processes along the way. Thank you once again for the trust you have placed in us.
