High-Performance Dissolved Air Flotation (DAF) Systems
IL Kopay Dissolved Air Flotation (DAF) system is an effective solid-liquid separation solution designed to remove suspended solids (TSS), fats, oils, and grease (FOG) from industrial wastewater. By utilizing microscopic air bubbles, our DAF systems float contaminants to the surface for automatic skimming, leaving behind clear, treated water.
How Our DAF System Works
Our system uses a specialized Dissolved Air Pump to create a pressurized mixture of air and water. When this mixture is released into the flotation tank, it forms millions of micro-bubbles (20–40 microns). These bubbles attach themselves to the chemical flocs (formed by PAM/PAC), lifting them to the surface to form a concentrated sludge blanket.
Key Technical Advantages
Superior Clarification: Capable of removing up to 99% of TSS E 95% of Oil & Grease, significantly reducing downstream COD and BOD loads.
Advanced Micro-Bubble Generator: Our high-efficiency air dissolution system ensures a stable, milky-white cloud of bubbles for consistent performance.
Stainless Steel Construction: Built with Acciaio inossidabile SUS304 o SUS316 for extreme durability and resistance to corrosive chemicals.
Small Footprint: Highly compact design compared to traditional sedimentation tanks, saving valuable factory floor space.
Automatic Scum Removal: Equipped with a heavy-duty chain-plate skimmer that removes surface sludge continuously without disturbing the flotation process.
| Model (KP-DAF) | Flow Rate (m³/h) | Power Consumption (kW) | Material Option | Application |
|---|---|---|---|---|
| DAF-5 | 5m³/h | 1.5kW | SUS304 / Carbon Steel | Small Scale Food Factory |
| DAF-10 | 10m³/h | 2.2kW | SUS304 / Carbon Steel | Dairy / Meat Processing |
| DAF-25 | 25m³/h | 4.5kW | SUS304 / Carbon Steel | Paper Mill / Textile |
| DAF-50 | 50m³/h | 7.5kW | SUS304 / Carbon Steel | Municipal Wastewater |
—Flottazione ad aria disciolta Filtrazione DAF DIAGRAMMA DI FLUSSO DEL PROCESSO | principio di funzionamento:

—Vantaggi della flottazione ad aria disciolta | Caratteristiche principali:
- Velocità di raschiatura estremamente elevata (2-3 volte più veloce rispetto al modello convenzionale) e funzionamento sicuro grazie all'utilizzo del raschiatore chiuso e completamente invertito.
- Carico idraulico elevato e ingombro ridotto grazie alle piastre orizzontali nella zona di separazione, separazione più efficace e ottimizzazione del flusso idraulico nella zona di separazione.
- Migliore qualità dell'acqua in uscita grazie alla tramoggia di sedimentazione dei fanghi a forma di W.
- Ridurre al minimo in modo efficace il consumo di prodotti chimici grazie alle prestazioni di riflocculazione del design a raschiatura inversa
- Nessun angolo cieco nella camera di raccolta schiuma.
—Scheda tecnica per la flottazione dell'aria disciolta nel trattamento delle acque:
| modalità | Capacità (m³/ora) | aria sciogliendosi toilette (%) | Motore energia (kW) | Raschiare energia (kW) | aria compressore energia (kW) | Dissoluzione dell'aria cisterna (mm) | Dimensione (L*L*A) |
| KPDAF-5 | 4-5 | 35 | 3 | 0.37 | 1.5 | 400*1000 | 3300*1800*2200 |
| KPDAF-10 | 8-10 | 35 | 3 | 0.37 | 1.5 | 500*1512 | 4000*2100*2200 |
| KPDAF-15 | 10-15 | 35 | 3 | 0.37 | 1.5 | 500*1512 | 4400*2100*2200 |
| KPDAF-20 | 15-20 | 35 | 7.5 | 0.37 | 1.5 | 500*1512 | 4600*2400*2200 |
| KPDAF-30 | 20-30 | 35 | 7.5 | 0.37 | 1.5 | 500*1512 | 5200*2600*2400 |
| KPDAF-40 | 30-40 | 35 | 7.5 | 0.55 | 1.5 | 600*1880 | 6000*2600*2400 |
| KPDAF-50 | 40-50 | 35 | 7.5 | 0.55 | 1.5 | 600*1880 | 7000*2600*2400 |
| KPDAF-60 | 50-60 | 35 | 7.5 | 0.55 | 1.5 | 600*1880 | 7600*2800*2400 |
| KPDAF-70 | 60-70 | 35 | 7.5 | 0.55 | 1.5 | 650*2034 | 8400*2800*2400 |
| KPDAF-80 | 70-80 | 35 | 7.5 | 0.55 | 1.5 | 650*2034 | 9200*2800*2400 |
| KPDAF-100 | 90-100 | 35 | 7.5 | 0.55 | 3 | 700*1980 | 10000*2800*2600 |
| KPDAF-150 | 125-150 | 40 | 22 | 1.1 | 3 | 700*1980 | 13500*2800*2600 |
| KPDAF-200 | 175-200 | 40 | 22 | 1.1 | 3 | 800*2100 | 15800*2800*2600 |
| KPDAF-300 | 250-300 | 40 | 37 | 1.1 | 5.5 | 800*2100 | 19200*3400*2800 |
Success Case: 95% Oil Removal for a Large Dairy Plant
La sfida: A dairy processing facility was facing heavy fines from the local government because their wastewater contained excessive amounts of milk fats and proteins (TSS). Their traditional settling tank was unable to separate the emulsified fats.
La nostra soluzione: Kopay International designed and installed a KDAF-30 Dissolved Air Flotation System combined with an Automatic Polymer Dosing Unit.
I risultati:
Compliance Achieved: The plant reduced its TSS from 2,500 mg/L to under 50 mg/L.
Oil & Grease Removal: 98% of emulsified fats were removed at the DAF stage.
Cost Savings: By reducing the organic load, the factory saved 30% on downstream biological treatment costs.
Industry Applications
Food Processing: Slaughterhouses, meat packaging, and snacks production.
Dairy Industry: Milk, cheese, and yogurt processing.
Petrochemical: Oil-water separation in refineries.
Tessile e tintura: Removing color and suspended chemical solids.
Carta e cellulosa: Fiber recovery and white water clarification.
Choosing the right DAF depends on your chemical reaction. Send us your wastewater analysis report (COD, TSS, and Oil content), and Kopay’s technical team will provide a recommended DAF model and a chemical dosing scheme to ensure your water meets discharge standards.”
Free DAF Sizing & Jar Test Consultation
















