english 1. Dissolved air system
This is the key part of the Dissolved air flotation system, which consists of a dissolved air tank, an air compressor and a water pump. The air compressor presses air into the dissolved air tank, and the water pump also transports the water to be treated into the dissolved air tank. Under a certain pressure, the air is fully dissolved in the water to form dissolved air water, which provides a source of tiny bubbles for the subsequent flotation process.
2. Flotation tank
As the core reaction area of the system, its internal structure design has a significant impact on the flotation effect. The flotation tank is equipped with an inlet area, a reaction area, a separation area and an outlet area. The inlet area allows sewage to enter the flotation tank evenly; in the reaction area, the tiny bubbles released by the dissolved air water fully contact and adhere to the suspended particles in the sewage; in the separation area, since the density of the bubble and particle combination is less than that of water, it floats to the water surface to form a scum layer, and the clean water sinks; the outlet area is responsible for discharging the treated clean water.
3. Release device
Usually installed in the flotation tank, its function is to decompress the dissolved air water and quickly release the supersaturated air in the dissolved air water in the form of tiny bubbles. These tiny bubbles have small particle size and large number, and can efficiently attach to suspended particles.
4. Scraping system
When the scum accumulates to a certain thickness on the surface of the flotation tank, the scraper starts to scrape the scum to the slag discharge tank, thereby realizing the continuous or regular removal of the scum, preventing the scum from re-entering the water body and affecting the treatment effect.
5. Control system
It covers various instruments and automatic control equipment, real-time monitoring and adjustment of system operating parameters, such as dissolved gas tank pressure, water inlet flow, water level, etc., to ensure stable operation of the system, timely alarm when abnormalities occur and automatically take corresponding measures.
