Product Description

Shallow Air Flotation DAF Unit for Waste Water Treatment. Shallow Air Flotation is a water treatment process that clarifies wastewater (or other bodies of water) by removing suspended matter such as oil or solids. This is achieved by dissolving air in water or wastewater under pressure and then releasing the air pressure in the flotation tank basin. The released air forms tiny air bubbles that stick to the suspension, causing the suspension to float to the surface, which can then be removed with a little equipment.

Technical principle

The principle of air flotation: a large number of micro-bubbles are introduced into the sewage to form a three-phase mixture of water, gas and the removed material. After the air bubbles adhere to the removed micro-suspended matter, they float to the water surface because the density of the adhesive is lower than that of water, so that the pollutants in the water are separated and removed.

The principle of shallow pool: YSL E type super-efficient shallow ion air flotation is an air flotation device integrating compaction, air flotation, slag skimming, and mud scraping. The hydraulic retention time is 3-5 minutes, forced water distribution, static separation, micro The adhesion of bubbles and flocs occurs in the entire air flotation separation process including the contact area, the scum is discharged instantaneously, the water disturbance is small, the effluent suspended solids are low, the slag solid content is high, and the suspended solids removal rate can reach up to 99.5% Above, the removal rate of COD can reach more than 90%, and the removal rate of chroma can reach more than 95%.

Zero-speed principle: The raw water to be treated is sent to the central water inlet pipe through the lift pump, and the dissolved air and the liquid medicine are simultaneously pumped into the central water inlet pipe to mix with it, and then the water is evenly distributed into the ion air flotation tank through the water distribution pipe. The moving speed of the water is the same as the flow rate of the effluent, and the direction is opposite, which produces a "zero speed", which minimizes the disturbance of the influent water, and the suspension and sedimentation of the flocs are carried out under static conditions. The suspended matter floats vertically to the water surface in a relatively static environment, the floating distance is minimized, and is not affected by the flow rate of the water, and the floating speed reaches or is close to the theoretical maximum value.

Feature

1. Generate microbubbles

2. Underground capture

3. Automatic groove controlled by liquid level

4. Non-blocking for efficient release

Application

Municipal sewage

slaughterhouse

Metallurgical industry wastewater

spray sewage

Printing and Dyeing Wastewater

Metalworking Wastewater