Success stories
Sant Fruitòs de Bages, Navarcles, Sanpedor WWTP (Spain)
No trade-offs, driving process performance and energy efficiency simultaneously
Plant characteristics
- Design flow: 16.000 m3/d
- Biological treatment: 2x plug-flow reactors
- Aeration system:
- 2+2+1Rx blowers with VSDs
- Automatic regulation valves
- Airflow and pressure meters
- Effluent discharge consent:
- BOD5 < 25 mgO2/L
- COD < 125 mgO2/L
- TSS < 35 mg/L
- TN < 15 mgN/L
- TP < 2 mgP/L
Challenge
CREApro® platform fitted with self-customized process intelligence tools and editable control configuration settings : an every day operation control as well as a strategic tool.
Intelligent control loops included and tailored:
Solution implemented
KPIs
50%
Effluent quality compliance
15%
Reduction of kWh / m3
48%
Reduction of kWh / kgTNremoved
100%
Robustness and reliability
Feedback from the user
“The aim of the implementation of the control platform was to overcome the existing limitations with the nitrogen removal and non-compliance events. The results of the platform have gone over and beyond our expectations, allowing us to meet nitrogen discharge limits without the need to make any significant investment in the plant. The combination of aeration and biomass control was also demonstrated, as it improved the overall performance of the biological treatment operation enabling to work under stable and optimal biomass and sludge age conditions. All in all, this not only resulted in increased treatment capacity and energy efficiency, but also in optimal process stability and sludge quality.”
Antoni Ventura, General Manager, Aigües de Manresa
