The Saarburg wastewater treatment plant is a mechanical biological wastewater treatment plant with anaerobic sludge stabilisation. It is designed for 38,000 PE and is loaded with 28,000 PE.
In the run-up to the optimisation measure, BITControl carried out an energy efficiency study in accordance with DWA A-216.
The following measures for optimising and modernising the wastewater treatment plant were derived from this:
Energetic and procedural optimisation of biology
- Conversion from upstream to intermittent denitrification
- Flexibilisation of wastewater routing: bypassing primary treatment, load-dependent use of the anerobic tank, bypass pipe
- Removal of the agitators and installation of plate aerators
Measurement and control technology
- Ammonium, nitrate and oxygen measurement
- Fuzzy control for ventilation
- Renewal of the process control and telecontrol technology
Replacement of the existing CHP unit
Results:
- Reduction in energy consumption by approx. 75%
- Improvement of the discharge values
- Permanently efficient operation through data collection and evaluation
