Eco-Friendly Dissolved Air Flotation System for Waste Management

The Dissolved Air Flotation (DAF) machine is a specialized industrial system mainly used for solid-liquid and liquid-liquid separation. The device generates large amounts of tiny bubbles through a dissolved gas and release system. These microbubbles adhere to solid or liquid particles in the wastewater, reducing their overall density below that of water and causing them to float to the surface for efficient removal.

Working Principle

Air is pressurized by a compressor and sent into a dissolved air tank. Under 0.35Mpa pressure, the air dissolves into the water. When suddenly released into the flotation tank, it forms a vast group of microbubbles (20-50UM). These bubbles contact flocculated suspended matter, reducing their density and causing them to float to the surface, effectively removing SS and CODcr.

Key Features

• Efficient gas-to-liquid dissolving with microbubbles smaller than 30 um.
• High efficiency: Dissolved gas efficiency and release rates up to 99%.
• Adsorption efficiency: Excellent SS removal effect via tiny bubble adsorption.
• Low noise operation and smooth pressure-capacity curves.
• Easy automatic control and maintenance.

Main Structure

1. Air Flotation Machine: The core steel body comprising the releaser, distribution device, sewage pipe, outlet pipe, sludge tank, and scraper system.

2. Dissolved Air System: Includes the dissolved air tank, storage tank, compressor, and high-pressure pump designed for maximum air-water contact.

3. Chemical Dosing System: Equipped with metering pumps, mixing motors, and PE tanks.

Applications

Technical Advantages

• Protective Top Cover: Ensures safety and increases chain service life.
• Pipe Flocculation: Uses pipe flocculation instead of traditional tanks to save cost and space.