Process flow and characteristics of dissolved air flotation machine

working principle:
Part of the treated wastewater circulates into the dissolved air tank. Under the pressurized air state, the air is supersaturated and dissolved, and then mixed with the raw water with flocculant added at the entrance of the flotation tank. Due to the reduction in pressure, the supersaturated air is released. Tiny bubbles are formed that quickly attach to the suspended material, lifting it to the surface of the flotation tank. This forms a sludge floating layer that is easily removed, and heavier solid matter settles to the bottom of the tank and is also removed.
Scope of application:
It is suitable for purifying sewage with high color, low dissolved oxygen and many organic impurities. It is especially effective for purifying sewage with low water temperature and unsuitable for gravity sedimentation. This process is suitable for industrial wastewater treatment and production water treatment after printing and dyeing, electroplating, tanning, papermaking, chemical industry, textile, meat processing, oil refining, canned food, etc. It is also suitable for the separation of biological mud film and water in biological treatment. .