Dissolved Air Flotation (DAF) Water Treatment

Water is critical to industrial operations, yet managing it efficiently can be a challenge. That’s where Dissolved Air Flotation (DAF) systems come in—practical, reliable equipment designed to clean and recycle wastewater across a range of industries. With years of expertise in water treatment solutions, I’ll walk you through what makes DAF systems effective, their standout features, and why they’re a smart investment for your business.

DAF systems use a straightforward process to remove contaminants from wastewater. A two-stage air compressor pumps high-pressure air into a tank of wastewater, dissolving it into the liquid. When the pressure drops, tiny bubbles—think millions of them—form and rise. These micro-bubbles latch onto suspended solids, oils, or other particles, lifting them to the surface. A skimmer then scrapes off this layer, leaving cleaner water behind.

To boost performance, chemicals like coagulants (PAC) or flocculants (PAM) are often added. These agents clump particles together, making them easier for the bubbles to grab and float away. The result? Water that’s ready for reuse or safe disposal.

DAF systems deliver real advantages for industrial water management:

• High Efficiency: They cut total suspended solids (TSS), oils and grease (FOG), and biochemical oxygen demand (BOD) by up to 90%, per a 2023 Water Technology study.
• Money Savings: Recycling water slashes utility bills and reduces disposal costs—no small deal for high-volume operations.
• Built to Last: With motor powers from 2.2kW to 5.5kW and sturdy construction, these units handle tough workloads without breaking down.

These systems adapt to a variety of wastewater challenges:

• Industrial Use: From paper mills to electroplating shops, DAF handles heavy metals, oils, and grime with ease.
• Food and Chemical Plants: Fats, residues, and chemicals in wastewater? DAF cleans it up, keeping discharge compliant.
• Biological Cleanup: Tackling algae or sludge in surface water is no problem—DAF’s flotation process clears it fast.
• Plastic Recycling: In plants washing plastic scrap, DAF recycles water, cutting usage and supporting eco-friendly goals.

Take a plastic washing operation: A DAF unit like the APW-20 (20 m³/h capacity) can process dirty rinse water and return it clean, saving thousands of gallons daily.

DAF systems come in sizes to fit your needs. Here’s a look at the specs:

Small setups might go for the APW-5, while larger plants benefit from the APW-30’s higher throughput. Pump flow rates ensure steady operation, even with thick or murky wastewater.

Investing in a DAF system pays off in ways that matter:

• Cost-Effective: Lower water and disposal expenses improve your bottom line.
• Green Impact: Reusing water reduces your environmental footprint—a win for sustainability goals.
• Tailored Fit: Whether you’re treating oily runoff or biological sludge, DAF adjusts to the job.

A tannery using the APW-10, for example, reported a 30% drop in water costs within six months, thanks to recycling treated wastewater.

DAF systems are built for the long haul. Motors range from 2.2kW to 5.5kW, paired with pumps that push 10-22 m³/h, ensuring consistent output. The 1-year warranty covers parts and labor, so you’re not left guessing about reliability. Plus, the process is low-maintenance—clean the skimmer and check chemical levels, and you’re good to go.

DAF systems aren’t just equipment—they’re a solution for smarter water use. They deliver clean results, save cash, and keep your operation running smoothly. For the latest pricing and delivery info, hit us up with the form below:

WARRANTY

All recycling machines come with a 1-year limited warranty.

INQUIRIES

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