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A decade of large scale experience in dissolved air flotation
S Kempeneers1, F Van Menxel, L Gille
1Antwerpse Waterwerken (Departement Waterkwaliteit), Mechelsesteenweg 64, 2018 Antwerpen, Belgium.
Summary
A new dissolved air flotation (DAF) plant at Notmeir-Walem improved water treatment by reducing raw water quality fluctuations from algal blooms. Optimizations over ten years simplified operations and mechanical design.
Area of Science:
- Environmental Engineering
- Water Treatment Technologies
Background:
- Increasing algal blooms caused significant raw water quality fluctuations.
- Existing water treatment lines required enhancements to address these challenges.
Purpose of the Study:
- To integrate dissolved air flotation (DAF) into existing water treatment lines.
- To assess the impact of DAF on dual-layer filtration.
- To document operational experiences and gather data over a decade.
Main Methods:
- Installation of a 200,000 m3/d DAF unit at the Notmeir-Walem production center.
- Conducting optimization studies over ten years.
- Analyzing operational data and performance.
Main Results:
- Successful integration of DAF technology into the water treatment process.
- Observed simplification in operational procedures and mechanical design.
- Mitigation of raw water quality variations due to algal growth.
Conclusions:
- Dissolved air flotation is an effective technology for managing raw water quality fluctuations.
- Long-term operational experience provides valuable insights for optimizing water treatment plants.
- DAF integration positively impacted downstream filtration processes.