Pressure dissolved air flotation

（1） Working principle

Under high pressure, water is dissolved into a large amount of gas as the working medium (dissolved gas water), which is suddenly depressurized and released through the release system, forming countless fine bubbles (with a particle size of 20-40um) that adhere to the "alum flowers" in the wastewater after coagulation reaction,

Make the specific gravity of floc smaller than that of water, so as to float up, form foam (combination of gas, liquid and solid) on the liquid surface, quickly remove pollutants in water, and achieve water purification effect.

（2） Scope of application

This device is widely applicable for the removal of heavy metal ions in electroplating wastewater; Pulp recycling and water reuse of papermaking wastewater; The removal of COD, BOD, SS, chromaticity, and other pollutants from wastewater from printing, dyeing, bleaching, and wool spinning; Slaughter wastewater, food wastewater, leather wastewater

The treatment of oily wastewater (including emulsified oil, vegetable oil), refinery wastewater, chemical wastewater, rubber wastewater, etc; Reduce turbidity in various types of wastewater, domestic water, and industrial water.

（3） Process flow

（4） Main advantages

Compared with ordinary precipitation, this device has the following advantages:

Under pressurized conditions, the air solubility is high, and the number of bubbles used for gas flotation is large, which can ensure the effectiveness of air flotation.

2. The dissolved gas is suddenly released under reduced pressure, resulting in bubbles that are not only fine, uniform in size, and dense, but also float stably with minimal disturbance to the liquid. Therefore, it is particularly suitable for solid-liquid separation of loose flocs and small particles.

3. The process and equipment are relatively simple, cost-effective, and easy to manage and maintain.

4. Partial reflux treatment has significant and stable effects, and can significantly save energy consumption.

5. Small footprint, high water production per unit area, and low slag moisture content.

（5） Product specifications and technical parameters

Note: The air flotation device is assembled separately, and the floor area can be adjusted according to the site. The specifications and technical parameters of products without processing capacity will be provided separately.

Jinan Lufa Environmental Protection Technology Co., Ltd

Address: West Exit of Feiyue Avenue, Licheng District, Jinan City

Phone: (Chen)

Website: www.lufahb.com, www.jnlfhb.com

Email: lufahb@163.com

WeChat official account: lufahuanbao