How to use air flotation and matters needing attention

In order to make the air flotation machine run smoothly, first of all, pay attention to adjusting the coagulant dosage and other data based on the flocculation of the reaction tank, the scum in the air flotation area and the quality of the effluent water, especially to avoid clogging of the dosing pipe. And regularly check the water level indicator tube of the dissolved gas tank to control it within a certain range to ensure the dissolved gas effect and avoid the emptying of the water level in the dissolved gas tank, which will cause a large amount of gas to escape into the floating tank and damage the water purification performance and scum layer. .
For those that are equipped with an automatic control device for the liquid level of the dissolved air tank, attention should be paid to the maintenance of the equipment; the filling and air intake systems of the air compressor and water pump of the air flotation machine should be maintained regularly and oiled frequently. When the water temperature is too low in winter, because the flocculation effect is poor, in addition to increasing the dosage, sometimes it is necessary to increase the amount of dissolved air water or the pressure of dissolved air accordingly to allow more microbubbles to adhere to the flocs to compensate for the increase in water viscosity. Affects the up-regulation characteristics of air-laden flocs, thereby ensuring normal effluent water quality.
Frequently observe the condition of the air flotation pool surface. Once you find that the scum surface in the contact area is uneven, large bubbles appear in some areas, or the water flow is unstable, you should select a release device to clear the blockage; if the scum surface in the separation area is uneven, there are often large bubbles and cracks on the pool surface. If it is on, it means that the bubbles and floc are not adhered well, and the coagulation system must be checked and adjusted or appropriate measures must be taken.
There is a component in the air flotation device called the air flotation tank. It is constructed of circular steel, which is the heart and core of the sewage treatment machine. It consists of a releaser, a distributor, a sewage pipe, a water outlet, a sludge tank, and a scraper. Mudboard system and other components. The releaser is placed in the center of the air flotation machine and is a key component of microbubbles.
The solution air and water from the dissolved air tank in the dissolved air flotation machine are fully mixed with the sewage here, and are suddenly released, causing violent stirring and vortex, producing microbubbles with a diameter of about 20-80um, which then adhere to the flocculation in the water. The body rises and clear water separates. The distributor has a conical structure and is connected to the release device. The function of the air flotation tank of the dissolved air flotation machine is to distribute the separated clean water and sludge in the tank.
The water outlet is distributed under the tank body and is connected to the upper overflow of the tank through an upright main pipe. The overflow outlet is equipped with a water level adjustment rocker to facilitate adjustment of the water level in the tank. The sludge pipe is installed at the bottom of the tank to discharge the sediment deposited at the bottom of the tank. The upper end of the tank is equipped with a sludge tank. There is a scraper on the tank. The scraper rotates continuously to scrape the floating sludge to the sludge tank. Inside, it flows to the sludge tank.