Dissolved Air Flotation (DAF) System Manufacturer | Kopay Intl

High-Performance Dissolved Air Flotation (DAF) Systems

The 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 and 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 SUS304 or SUS316 Stainless Steel 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.

—Dissolved Air Flotation DAF Filtration PROCESS FLOW DIAGRAM | working principle:

-विघटित वायु प्लवन के लाभ | प्रमुख विशेषताऐं:

1. Extremely high srcaping speed (2-3 times faster than conventional design) and safty operation because of using fully reverse and closed scraper.
2. पृथक्करण क्षेत्र में क्षैतिज प्लेटों के कारण उच्च हाइड्रोलिक भार और कम पदचिह्न, पृथक्करण क्षेत्र में अधिक प्रभावी पृथक्करण और अनुकूलन हाइड्रोलिक प्रवाह।
3. डब्ल्यू-आकार कीचड़ अवसादन हॉपर के कारण बेहतर आउटलेट पानी की गुणवत्ता।
4. रिवर्स स्क्रैपिंग डिज़ाइन के री-फ्लोक्यूलेशन प्रदर्शन के कारण रासायनिक खपत को प्रभावी ढंग से कम करें
5. मैल संग्रहण कक्ष में कोई अंधा कोण नहीं।

- जल उपचार में घुलित वायु प्रवाह के लिए तकनीकी डेटा शीट:

Success Case: 95% Oil Removal for a Large Dairy Plant

The Challenge: 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.

Our Solution: Kopay International designed and installed a KDAF-30 Dissolved Air Flotation System combined with an Automatic Polymer Dosing Unit.

The Results:

• 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.

• Textile & Dyeing: Removing color and suspended chemical solids.

• Paper & Pulp: 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.”