Dissolved Air Flotation (DAF) System
Dissolved Air Flotation (DAF) is an advanced and highly efficient wastewater treatment technology used to remove suspended solids, oils, grease, and other floating contaminants from industrial effluent. DAF systems are widely used in industries such as oil & gas, food processing, dairy, pharmaceuticals, chemical plants, and manufacturing units.
This process plays a crucial role in improving water quality, reducing pollution load, and ensuring compliance with environmental discharge standards.
What is a DAF System?
A DAF (Dissolved Air Flotation) system is a water treatment process that clarifies wastewater by removing solid particles through flotation. It works by dissolving air into water under pressure and then releasing it at atmospheric pressure inside a flotation tank. The released air forms microbubbles that attach to contaminants, causing them to float to the surface for easy removal.
How Dissolved Air Flotation Works
The DAF treatment process includes the following key stages:
1. Air Injection
Compressed air is injected into a portion of treated wastewater under high pressure, creating an air-saturated solution.
2. Pressure Release
The pressurized water is released into the flotation tank. As pressure drops, dissolved air forms microscopic bubbles.
3. Flotation Process
Tiny air bubbles attach to suspended solids, oil droplets, and grease particles, reducing their density and lifting them to the surface.
4. Skimming & Removal
A mechanical skimmer collects the floating sludge layer, leaving clarified water at the bottom of the tank.
The treated water can then be discharged safely or reused for industrial purposes.
Benefits of Dissolved Air Flotation (DAF)
High Removal Efficiency
Effectively removes suspended solids (TSS), oil & grease (FOG), and other contaminants.
Compact & Space Saving Design
Requires less installation space compared to traditional sedimentation systems.
Low Sludge Generation
Produces drier sludge, reducing handling and disposal costs.
Energy Efficient Operation
Optimized systems ensure low operational costs.
Improved Water Quality
Delivers high-quality treated effluent suitable for reuse or safe discharge.
Applications of DAF Systems
Oil & Gas Industries
Food & Beverage Processing
Dairy Plants
Textile Industries
Chemical & Pharmaceutical Units
Metal Processing Industries
Why Choose Us for DAF Systems?
We provide custom-designed Dissolved Air Flotation systems tailored to meet your specific wastewater treatment requirements.
Customized Engineering Solutions
Designed based on effluent characteristics and industry type.
Advanced Technology Integration
Modern air saturation and flotation mechanisms for maximum efficiency.
Regulatory Compliance
Systems designed as per CPCB/SPCB pollution control norms.
Complete Installation & Support
From system design and fabrication to commissioning and maintenance.
Cost-Effective & Reliable Performance
Long-lasting equipment with minimal maintenance requirements.
Reliable & Efficient Wastewater Clarification
A Dissolved Air Flotation (DAF) system is an essential component in modern wastewater treatment plants. It enhances overall treatment efficiency, reduces pollutant load, and supports sustainable industrial water management.

Allied Enviro Engineering delivered our Water Treatment Plant on time with excellent quality. Very professional team.