Dissolved Air Flotation
Advanced Solid-Liquid Separation
Advanced Solid-Liquid Separation
Dissolved Air Flotation
The Wehemwater Dissolved Air Flotation (DAF) system is a proven, high-efficiency clarification technology using micro-bubbles (20-100 μm) to separate suspended solids, oils, and grease. Our advanced design achieves O&G and SS removal rates exceeding 95%.
O&G and SS removal rates exceeding 95%
Micro-bubble generation with 20-100 μm diameter
Hydraulic loading rate of 5-8 m³/(m²·h)
Handles influent SS up to 3,000 mg/L
ISO 9001 CE Marked 12-Month Warranty
Key Features & Benefits
O&G and SS removal rates exceeding 95%
Micro-bubble generation with 20-100 μm diameter
Hydraulic loading rate of 5-8 m³/(m²·h)
Handles influent SS up to 3,000 mg/L
Automatic surface skimmer and bottom sludge auger
Modular, skid-mounted design
Integrated chemical dosing and pH control
Corrosion-resistant construction
How It Works
Working Principle
DAF works by dissolving air under pressure into water, then releasing it at atmospheric pressure to generate micro-bubbles (20-100 μm). These bubbles attach to suspended particles, oils and grease, reducing their effective density and causing them to float to the surface where they are removed by a mechanical skimmer.
1Chemical coagulation and flocculation in reaction zone
2Micro-bubble generation via pressurized air dissolution
3Bubble-particle attachment and upward flotation
4Surface skimming and clarified water collection
Technical Specifications
| Model | Capacity (m³/h) | L (mm) | W (mm) | H (mm) | Net Weight (T) | Running Weight (T) | Total Power (kW) | Reflux Pump (kW) | Air Compressor (kW) | Skimmer (kW) | Mixer 1 (kW) | Mixer 2 (kW) | Material |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WHM-DAF005 | 5 | 2800 | 1000 | 2100 | 3 | 8 | 4.75 | 3 | 0.55 | 0.1 | 0.55 | 0.55 | Carbon steel |
| WHM-DAF010 | 10 | 3200 | 1200 | 2200 | 4 | 12 | 4.75 | 3 | 0.55 | 0.1 | 0.55 | 0.55 | Carbon steel |
| WHM-DAF025 | 25 | 5000 | 1500 | 1350 | 5.5 | 21 | 5.85 | 3.7 | 0.75 | 0.1 | 0.75 | 0.75 | Carbon steel |
| WHM-DAF050 | 50 | 6500 | 2000 | 2500 | 7 | 36 | 9.05 | 5.5 | 1.5 | 0.2 | 1.1 | 1.1 | Carbon steel |
| WHM-DAF080 | 80 | 7600 | 2600 | 2600 | 9 | 55 | 11.05 | 7.5 | 1.5 | 0.2 | 1.1 | 0.75 | Carbon steel |
| WHM-DAF100 | 100 | 8300 | 3000 | 3000 | 12 | 70 | 16.2 | 7.5 | 2.2 | 0.4 | 1.5 | 1.1 | Carbon steel |
Applications & Industries
Petrochemical wastewater
Food processing plants
Textile & dyeing industry
Pulp & paper mills
Metal finishing & plating
Municipal water treatment
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