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Operational principleShallow air flotation is an advanced and rapid air flotation system. It successfully applied the "shallow theory" and "zero speed" principles on the basis of traditional air flotation theory. The devices are mainly composed of pool, rotary water distribution mechanism, dissolved air release mechanism, frame mechanism, and water collection mechanism. The water inlet, water outlet, and scum discharge outlet are mainly distributed in the pool water body, where water distribution mechanism, water collection mechanism, dissolved air release mechanism and frame mechanism are closely connected, turning around the pool center.High-efficiency shallow air flotation goes into the mixing reactor in the raw water, coagulant and flocculant are added into the pipe mixing reactor, to form the separable flocculate, and mix it with minimal bubbles (bubble diameter range 5-10um) released by the dissolved air release mechanism. Such minimal bubbles are adhered to the flocs in the sewage, to form the air flotation body with the specific gravity smaller than that of water. Oil spill (or scum) is accumulated on the rising surface of the air flotation body, and is then collected byoil (scum) scraper into the oil (scum) collecting tank.
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Model significance
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Application range
Algae removal and turbidity reduction in the black and odorous water body in the riverway and water for landscape use.
Domestic sewage prefreatment and sludge thickening.
Papermaking white water pulp recovery and clean water reuse.
Printing and dyelng wastewater color and Impurity remowal.
Removal of heavy metal ions from electroplating wastewater.
Separation of refinery wastewater and oll dirt.
Tanning wastewater impurity removal.
Pretreatment for seawater desalination.
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Technological superiority
High purifcation level with suspension removal rate over 98%.
Lightwelght, compact strucure, convenient for transportation and Isalation, reducing the power consumption.
Short retention time, only 3-5 minutes, and high fficiency.
High surface load, and large purilication quantity.
"Zero speed" principle is used, and the forced water distribution and water intake and discharge are static. Since the disturbance to the flocs in the water bodly is minimized, the scum is instantaneously removed, thus achieving higher stability.
"Shallow pool theory" is used, and the efective pool length is only 730mm, indicating small floor space.
High-efficiency block-free releasing mechanism is used to improve the utilization eflcdency of the dissolved-air water, and guarantee the working stbility of the alir fotaton devices.
With stable handling effect, the electromechanical instruments have realized the integrated control.