Disposal performance and air flotation effect of dissolved gas system
The dissolved gas system is a key part of the whole air flotation process, and the quality of the microbubbles generated by the dissolved gas system directly affects the air flotation effect. The dissolved gas equipment used in the system is a dissolved gas cylinder, and the air is dissolved in water under a pressure of 2.5 to 4 kg/cm 2 . After the pressurized water passes through the releaser, the dissolved water is released by the energy release, and the water will release excess air, so that small bubbles are naturally formed when passing through the liquid, and the bubbles are very small, and its diameter is about 5-20 microns.
The dissolved gas of the dissolved gas system is thoroughly mixed with the waste water to be treated through the release device, and the small bubbles slowly rise and adhere to the impurity particles to form a floating body having a specific gravity smaller than that of water, floating on the surface, forming scum, and then being scraped by a scraper Scum removal.
The dissolved air flotation system integrates water, flocculation, separation, water collection and water discharge. Similar to the traditional air flotation equipment, it has a steady flow chamber and a dissolved gas release chamber to make the treatment performance more stable and better. The raw water reacted by the folding plate has a high flow rate. If it is directly in contact with the dissolved gas, it will dissipate the tiny bubbles, affecting the effect of the bubbles adhering to the flocs, thereby reducing the efficiency of the air flotation treatment. If the steady flow chamber is added, the turbulent raw water is increased. The kinetic energy is consumed and enters the dissolved gas water release chamber at a constant speed, thereby effectively ensuring the removal effect.http://shallowairfloatation.com/