Soluble gas system is mainly used for solid-liquid or liquid-separation when it is used. It mainly produces a large number of micro-bubbles in water through the dissolved gas and release system, which makes it adhere to solid or liquid particles with similar density and water.

Before starting the dissolved air system, the dispensing device and the dissolved air device should be started. When entering the normal operation state, the raw water pump should be started directly (in order to reduce the processing load, raw water can be used as dissolved air water). At the same time, when entering the tank, the constant pressure of dissolved air must be maintained at 0.3-05 Mpa, so as to ensure the maximum absolute amount of suspended particles floating per unit volume of dissolved air water.

Dissolved gas system must be discharged regularly when operating, and sediments should be discharged every 2-3 hours, so that too much can not be accumulated. Before the shutdown of the whole equipment, it is necessary to discharge mud thoroughly once, so as to avoid the influence of floating layer on the next start-up treatment. The function of the dissolved gas tank is to ensure that air can be fully dissolved in wastewater and that water and air can be well mixed under certain pressure. The mixing time is generally 1-3 minutes. The mixing time is related to the intake mode. That is to say, the mixing time before the pump is shorter and the mixing time after the pump is longer.

The top of the dissolved air tank in the dissolved air system is equipped with an exhaust valve, so that the air accumulated at the end of the top can be discharged regularly, which can avoid reducing the tank capacity. If the excess air is not discharged, the floating effect of the floating pool will be affected by the agitation of free bubbles. A vent valve is arranged at the bottom of the tank to empty the dissolved gas tank during cleaning. In order to prevent short flow in the dissolved gas tank, increase turbulence degree, promote full contact between water and gas, and accelerate gas diffusion, separators, baffles or fillers are often installed in the tank.www.khnwatertreatment.com