1、 Characteristics of Horizontal Flow Dissolved Air Flotation Water Purifier

1. The main body of the equipment is a rectangular steel structure, and the main components include a dissolved air pump, a dissolved air tank, an air compressor, a rectangular box body, a dissolved air water mixed flotation system, a mud scraping system, and a clean water discharge distribution pipe.

2. The working principle is: through the joint action of an air compressor and a dissolved air pump, water and air are pressurized and fused into a dissolved air tank to form dissolved water. The dissolved water is released into the water to be treated through a pressure regulator, forming tiny bubbles of 20-40um. The microbubbles adsorb and combine with suspended solids in the sewage, making the suspended solids have a lower specific gravity than water, and quickly float to the water surface to form floating slag, which separates from water.

3. Characteristics of dissolved water: Dissolved water is produced by pressurizing air with an air compressor and dissolving it in water. After the release of dissolved water, several microbubbles with a particle size of 20-40um are generated under negative pressure. These microbubbles have a small diameter and are not easily broken, with strong adhesion. They can quickly capture flocs in sewage and adsorb to the surface of the flocs, playing a supporting role and helping the flocs quickly float to the surface, completing the purification of water quality.

4. Use of coagulants: The dosage of coagulants should be added according to the requirements of water quality and water properties, not the more the better. The function of soda water is to reduce the use of coagulants and lower operating costs.

5. Operation management: The operating procedures are easy to master, and the water quality and quantity can be accurately controlled through electrical automation programs, reducing the labor intensity of workers and making management simple.

6. Scope of application: Suitable for removing solid suspended solids, oils, and various gelatinous substances from wastewater, such as wastewater treatment in industrial enterprises such as petrochemicals, coal mines, papermaking, printing and dyeing, slaughtering, and brewing.

7. Recycling useful substances: Used for recycling useful substances, such as collecting fine fibers in papermaking wastewater.

8. High load water treatment capacity: It has a high load water treatment capacity (hydraulic load of 3-5m3/m2h, SS removal rate of 85%~95%).

Energy saving: Effectively conserving energy.

2、 Advantages of using a laminar air flotation machine:

The PLQF horizontal flow dissolved air flotation water purifier is a physical and chemical core equipment in the industrial wastewater treatment process, which mainly plays two important roles.

The first item: Dissolved air water is a process of rapidly increasing oxygen by dissolving air in water under high pressure. Practical experiments have shown that the solubility of air in water under normal pressure is about 1.8%, and the oxygen uptake is relatively slow. However, at a pressure of 0.3 Mpa, the solubility of air in water can reach 5.4%, which is three times higher than the aerobic rate of ordinary aeration under normal pressure. Therefore, the degradation rate of COD is very obvious after using a dissolved air flotation machine, and COD can be reduced by 50-60% after a single pass.

The second step is to use the microbubbles generated after the release of high-pressure dissolved water to float out semi dissolved and insoluble flocculants in sewage through microbubbles, achieving the goal of clear water quality. After sterilization, odor removal, and filtration purification, it can be directly reused in production (designated reuse water for industries that do not have a significant impact on COD indicators). Save the usage of groundwater, reduce pollution discharge indicators, and lower the cost of sewage treatment.