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Introduction
In the water supply and drainage treatment process, solid and liquid separation technology and equipment are one of the key items. Shallow air flotation is one of the effective methods for the removal of small suspended particles whose specific gravity is close to water.
Product Features
※ The effective water depth is relatively shallow, 750~950mm.
※ The hydraulic retention time in the pool is short (5~10min).
※ The purification capacity is large, that is, the surface load is high.
※ The area is small, the unit load is light, all prefabricated components are assembled, no operation room is needed, and the equipment can be installed overhead or combined in multiple layers.
※ The cost of installation and maintenance is low, and it is easy to clean.
※ The degree of purification is high, the removal rate of suspended matter such as algae is more than 90%, and the concentration of sludge after concentration is 35%.
※ The device adopts WFA type dissolved air system, which is ingenious in structure and has a dissolved air efficiency of more than 90%. It has a number of patented technologies and has a super anti-blocking ability that other dissolved air devices do not have.
Structure And Working Process
Air flotation separation technology means that air and water are dissolved into the water to a greater extent under a certain working pressure, and strive to be in a saturated state, and then the formed pressure dissolved gas water is released through decompression to produce a large number of fine bubbles , Full contact with the suspended flocs in the water, so that the suspended flocs in the water adhere to the microbubbles, float to the water surface with the bubbles, form scum and scrape off the scum, thereby purifying the water.
The WQF high-efficiency shallow air flotation device developed by Gongyuan Company is an advanced fast air flotation system. Based on the traditional air flotation theory, it has successfully applied the "shallow layer theory" and the "zero velocity principle". , Through careful design, it integrates flocculation, air flotation, slag skimming, and mud scraping into one, and it is an efficient equipment for water purification treatment.
The WQF High-Efficiency Shallow Air Flotation Machine aims at the shortcomings of traditional air flotation tanks. Its raw water inlet and purified water outlet are designed to be mobile to shorten the floating time of bubbles in the raw water, that is, when the raw water flows to the air flotation tank, The water distribution pipe in the pool moves in the opposite direction of the raw water outflow, so that the raw water entering the pool is basically in a relatively static state, so that the bubbles in the water float to the water surface along the vertical direction, and the floating speed is close to the floating speed of the solids in the raw water. (4~250px/min), so the suspended matter in the raw water can quickly float to the water surface, while the purified water under the scum remains in place.
Application
This high efficiency shallow air flotation equipment is widely used in water supply and drainage treatment projects. First, it is used in water plants that use lakes as water sources to remove algae and reduce turbidity; second, it is used in industrial sewage treatment projects, such as petrochemical, textile, printing and dyeing, electroplating, tanning, food industry and other fields; third, it is used in Recycling of useful substances in sewage, such as: papermaking, fiber recycling in pulp water and other fields.
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