Integrated Dissolved Air Flotation Machine for Food Wastewater Treatment and Solid-Liquid Separation

The dissolved air flotation machine is an efficient and stable water treatment equipment that clarifies wastewater by removing oils, greases or other solid suspended matter. Its process design is to dissolve gas into water to the maximum extent under pressure, striving to be in a supersaturated state, and then release air at atmospheric pressure in the flotation tank. The released air forms a large number of tiny bubbles, which adhere to the suspended matter in the water, causing it to float to the water surface with the bubbles, forming scum, which is then removed by a scraping device.

Air flotation separation technology refers to dissolving air into water to the maximum extent under a certain working pressure. The next step is to release the pressure-dissolved air water, thereby generating a large number of fine bubbles, which are fully in contact with the oil and suspended flocs in the wastewater, so that they adhere to the microbubbles and float to the water surface with the bubbles to form scum. The scum is scraped off by the scraping system to achieve the effect of purifying water quality.
Heavy particles flow through the inclined plate settling zone,settling to the bottom of the sediment device,and discharged to the sludge tank through the pipeline,then do subsequent processing,and the Clarified purified water will be discharge by the equipment center tube.

Depending on the quality of sewage, please call us to discuss the actual installation location size and pipeline layout before ordering. In addition to the models in the parameter table, other specifications and models of DAF can be designed and customized according to customer needs. Please call us for detailed information.
Note: The equipment parameter table is for reference only. Our company will continue to improve and upgrade the process. The order equipment parameters are subject to the results of communication and confirmation between the two parties.

 1. The equipment occupies a small area and has low energy consumption;
2. The equipment is easy to operate and maintain;
3. The air dissolution efficiency is high, effectively preventing blockage, and the treatment effect is stable;
4. The dissolved air releaser has a high release rate, and the average particle size of microbubbles is about 15-30um.
5. The equipment adopts a chain plate scraper, which has stable operation and high scraping efficiency.

 1. Pre-treatment and terminal treatment of various industrial wastewaters;
2. Treatment of oily wastewater;
3. Improvement of municipal sewage treatment plants;
4. Recovery of white water pulp and reuse of clean water in papermaking;
5. Removal of heavy metal ions;
6. Separation of oily wastewater and oil pollution in oil refining;
7. Removal of impurities from wastewater in the leather manufacturing industry;
8. Removal of color and impurities from printing and dyeing wastewater;
9. Various biological treatments, biological mud membrane solid-liquid separation;
10. Improvement of sewage standards, purification and phosphorus removal, etc.;