Automated Nitrogen Removal in Wastewater Treatment Plant
Published on by Water Network Research, Official research team of The Water Network in Case Studies
The Stadtlohn WWTP regulates nitrogen reduction using the Liquiline Control. The control system regulates the air supply into the aeration basins depending on the current concentration of nutrients in the wastewater.
The Stadtlohn WWTP is designed to handle wastewater from a population equivalent (PE) of 30,500. At present, a PE of approximately 21,000 is connected to the plant, roughly 15% of which is industrial wastewater. The plant‘s two intermittent basins are activated sequentially (in cascade formation). Commissioned in 1991, the facility has undergone extensive modernization works over recent years.
The Stadtlohn WWTP regulates nitrogen reduction using the Liquiline Control. The control system regulates the air supply into the aeration basins depending on the current concentration of nutrients in the wastewater.
The results:
• Safe compliance with limit values.
• Stable operation.
• Optimized energy usage.
• High level of process transparency combined with ease of use.
• The switching of the basins from parallel to cascade operation during a plant upgrade posed no problem for the control system.
Find the Full Case Study in the Attachment
Source: Endress+Hauser
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Taxonomy
- Reclaimed Wastewater
- Aeration
- Nutrients Recovery
- Technology
- Wastewater Treatment
- Wastewater Collection
- Water Utility
- Infrastructure
- Utility Management
- Aeration
- Water Software
- green infrastructure
- Water Utility
- Nitrogen