Dissolved Air Flotation (DAF) Domestic Sewage Treatment Equipment

Advanced Solution for Efficient Domestic Wastewater Treatment

Dissolved Air Flotation (DAF) Domestic Sewage Treatment Equipment is an efficient wastewater purification system designed for the treatment of residential, commercial, and municipal sewage. By utilizing advanced dissolved air flotation technology, the equipment effectively removes suspended solids, grease, oil, organic matter, and other pollutants from wastewater, providing a reliable pre-treatment or primary treatment solution for various sewage treatment applications.

The system features a compact structure, stable operation, high treatment efficiency, and low maintenance requirements. It is widely used in residential communities, hotels, schools, hospitals, office buildings, industrial parks, tourist attractions, and municipal wastewater treatment projects.

Working Principle

The Dissolved Air Flotation process works by dissolving compressed air into clean water under pressure. When the pressurized water is released into the flotation tank, millions of microbubbles are generated. These microbubbles attach to suspended particles, grease, oils, and organic contaminants in the wastewater, reducing their density and causing them to float to the water surface.

The floating sludge layer is continuously removed by a skimming system, while the clarified water flows out for further treatment or discharge. The DAF process significantly improves the removal efficiency of suspended solids (SS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), and fats, oils, and grease (FOG).

Key Features

• High removal efficiency for suspended solids, grease, and organic pollutants

• Compact design with minimal installation space requirements

• Fast treatment process and high hydraulic loading capacity

• Stable and reliable operation with automatic control

• Low energy consumption and operating costs

• Durable corrosion-resistant construction

• Easy installation, operation, and maintenance

• Suitable for continuous and intermittent wastewater flow conditions

Main Components

The complete DAF sewage treatment system typically includes:

• Influent collection tank

• Dissolved air generation system

• Air compressor

• Flotation tank

• Skimming mechanism

• Sludge collection system

• Effluent discharge unit

• Electrical control cabinet

• Automatic monitoring and control system

Additional biological treatment, filtration, or disinfection units can be integrated according to project requirements and discharge standards.

Applications

The equipment is suitable for a wide range of domestic sewage treatment projects, including:

• Residential communities and apartment complexes

• Hotels and resorts

• Schools and universities

• Hospitals and healthcare facilities

• Commercial buildings and shopping centers

• Tourist attractions and recreational areas

• Industrial parks and employee dormitories

• Municipal sewage treatment facilities

Advantages of Our DAF Solution

Our Dissolved Air Flotation Domestic Sewage Treatment Equipment is engineered to deliver efficient wastewater treatment performance while reducing operational expenses and environmental impact. The advanced flotation technology ensures rapid separation of pollutants and improves the effectiveness of downstream treatment processes.

With years of experience in wastewater treatment engineering, we provide customized system designs based on wastewater characteristics, treatment capacity, and local discharge requirements. From technical consultation and equipment manufacturing to installation, commissioning, and after-sales service, we offer complete support throughout the project lifecycle.

Whether for small-scale residential projects or large municipal wastewater treatment facilities, our DAF sewage treatment equipment provides a dependable, cost-effective, and environmentally responsible solution for modern wastewater management.