High-Performance Dissolved Air Flotation (DAF) Systems
O 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 Aço inoxidável SUS304 ou 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 |
—Flotação por Ar Dissolvido Filtração DAF DIAGRAMA DE FLUXO DO PROCESSO | princípio de trabalho:

—Vantagens da flotação por ar dissolvido | Características principais:
- Velocidade de raspagem extremamente alta (2-3 vezes mais rápida que o projeto convencional) e operação segura devido ao uso de raspador totalmente reverso e fechado.
- Alta carga hidráulica e baixa pegada devido às placas horizontais na zona de separação, separação mais eficaz e otimização do fluxo hidráulico na área de separação.
- Melhor qualidade da água de saída devido ao funil de sedimentação de lodo em formato de W.
- Minimizar efetivamente o consumo de produtos químicos devido ao desempenho de refloculação do projeto de raspagem reversa
- Nenhum ângulo cego na câmara de coleta de escória.
—Ficha Técnica para flotação por ar dissolvido em tratamento de água:
| modo | Capacidade (m³/h) | ar dissolvendo banheiro (%) | Motor poder (kW) | Raspar poder (kW) | ar compressor poder (kW) | Dissolução de ar tanque (milímetros) | Dimensão (C*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
O desafio: 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.
Nossa solução: Kopay International designed and installed a KDAF-30 Dissolved Air Flotation System combined with an Automatic Polymer Dosing Unit.
Os resultados:
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.
Têxteis e tingimento: Removing color and suspended chemical solids.
Papel e Celulose: 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
















