DAF dissolved air floating machine
Air from the air compressor flows into the pressure air tank and is drawn into the dissolved‑air tank via an ejector device. At a working pressure of 0.35 MPa, air is fully dissolved in water to produce saturated dissolved‑air water, which is then delivered to the flotation tank.

When the pressurized water enters the tank and pressure drops sharply, dissolved air escapes and forms dense groups of fine micro‑bubbles. Prior to this step, raw wastewater goes through chemical dosing and flocculation; pumps feed the conditioned water carrying flocculated suspended solids into the unit. Rising micro‑bubbles attach firmly to these flocs, lowering their overall density so pollutants float upward to the water surface. In this way, the system efficiently removes suspended solids (SS), CODcr and other impurities from wastewater.
 

Exterior Structure

The whole‑set DAF system adopts robust carbon‑steel main‑body structure. For anti‑corrosion performance, two protective surface treatments are optional: epoxy anti‑corrosive painting or fiberglass coating. These treatments effectively defend against erosion from various industrial wastewater, extend equipment service life and reduce daily maintenance workload under long‑term wastewater pretreatment working conditions.

Internal Configuration

Equipped with dry‑powder feeding unit and complete automatic control system inside the equipment. The system enables real‑time adjustment of chemical dosing volume and precise control of prepared liquid concentration. Stable and accurate chemical addition guarantees ideal flocculation effect, which lays solid foundation for subsequent micro‑bubble solid‑liquid separation and pollutants removal in dissolved air flotation process.

• Food & beverage processing DAF for food processing wastewater pretreatment：Removes fats, grease and organic contaminants to protect downstream biochemical systems.
• Slaughterhouse & meat‑packing dissolved air flotation unit for slaughterhouse wastewater：Separates animal fat, blood residues and protein flocs for compliant effluent discharge.
• Pulp & paper mill DAF system for papermaking wastewater fiber recovery：Recover usable cellulose fiber while lowering suspended solids in white‑water effluent.
• Mechanical machining workshop DAF machine for oily industrial wastewater pretreatment：Separates emulsified oil and fine metal particles from workshop cleaning wastewater.
• Textile printing‑dyeing plant dissolved air flotation for textile printing‑dyeing wastewater：Removes short fiber and sizing substances to reduce follow‑up treatment burden.
• Dairy factory DAF pretreatment system for dairy wastewater treatment：Separates milk fat and protein and prevents blockage of subsequent treatment facilities.
• Municipal wastewater plant DAF as municipal wastewater primary pretreatment unit：Enhances light‑solid removal and improves overall sewage‑plant performance.
  Fruit & vegetable processing plant dissolved air flotation for fruit vegetable processing wastewater：Treats plant fiber and organic waste generated from food washing workflows.
  
  Technical Data

Product Real Shot Details
Learn More About Structural Performance
It can effectively remove the sus-pended substances that are diffi-cult to precipitate in wastewater,and the purification effect is re-markable
Long Service Life

Selection of excellent quality materials, fine welding made, low noise, durable
Simplicity Of Operator

Automatic control operation, high degree of automation, no need for specialist management, convenient maintenance
Support For Customization

Manufacturers supply, various specifications, support customization, intimate after‑sales, so that customers use more assured

1. How to buy your idea products?
AYou can provide us your water sources, water quality, flow rate and ground area (connect us for
more details).
2. How to pay?
A: TT and L/C are acceptable and TT will be more appreciated. 30% deposit before producing,
70% balance before loading by TT.
3. What is the delivery time?
A: It depends on order quantities. Generally speaking, the delivery time will be within 4 to 6 weeks.
4. How to pack the products?
A: We use standard package. If you have special package requirements, we will pack as required,
but the fees will be paid by customers.
5. How to keep your equipments from corrosion?
A: We use the world-famous paint, like SigmaCoatings,PainBow,etc. What's more, we paint strictly
according to the standard process.
6. How do you manufacture your equipment ?bending
A:Our machining technology includes laser/plasma cutting, automatic welding,CNC cutting and
7. How to install after the equipments arriving destination?A We will provide detailed illustrations to you. If it is necessary, we will send technicians to helpyou. However, the visa fee, air tickets, accommodation, wages will be paid by buyers.