EDE, THE NETHERLANDS

Increased plant load over several years, leading to non-compliance with EU effluent standards.
20% increase in plant load expected over the next 5 years.
To address this, Waterschap Vallei en Veluwe had to either extend the plant by a third process line or find another way to optimize capacity and increase treatment efficiency.

To avoid or postpone a costly extension of the plant, the WWTP implemented an online control system for optimizing biological treatment capacity.
The system is a holistic and data-driven digital solution called Hubgrade Wastewater Plant Performance.
Hubgrade provides real-time optimization of process efficiency and replaced the former PLC-based online control
The system offers a global overview in a web-browser user interface.
The implementation of Hubgrade Wastewater Performance Plant (HWP) resulted in the following benefits:
- Ensured compliant effluent, below EU’s quality standards
- Reduced environmental impact by reducing total-N and total-P in effluent
- Minimized operational expenses on energy and chemicals
- Significantly reduced capital investment by avoiding the construction of a new line.

Duration: 12 years
Type: BioDenipho design
M³ treated per day: 40,000
40% increase in hydraulic capacity
35% reducing Total-N in effluent (while the plant load increase by 38% in the last 10 years)
> 10M€ CAPEX saved by deferring extra line building