? Pressurized jet dissolved air flotation produced in industrial environment has the advantages of high dissolved air efficiency (80-90%), large dissolved air volume, moderate bubble size (10-20μm), long stability time of dissolved air water (more than 5min), good flotation separation flow pattern, less scum disturbance, more sufficient gas-solid contact and strong impact load resistance. It can ensure the treatment effect and the stability of actual operation. According to requirements, the dissolved gas pressure and the reflux ratio of dissolved gas to water can be adjusted. It is a dissolved air flotation technology with wide application range, high air flotation separation efficiency and stable effect in the market at present. Gong Yuan's new horizontal pressurized jet gas dissolving device can ensure the efficient and non-blocking operation of the system.
With regard to the applicability of microbubbles with fine particle size (5~7μm) to air flotation equipment, relevant research shows that the rising speed of microbubbles in water is very slow, and the water is filled with smoke with similar fragrance. For example, bubbles of l0μm rise at the speed of 10μ m/s, and it takes about 3h to rise in water, so microbubbles will stay in water for a long time, which is contrary to the principle of air flotation.