In the sewage treatment process, the use of certain methods and equipment, forced to add air to the sewage, so that the pool of sewage and air contact oxygenation, and stirring the liquid, to accelerate the transfer of oxygen in the air to the liquid, to prevent the pool of suspended solids sinking, to strengthen the pool of organic matter and microorganisms and the contact of dissolved oxygen, the sewage in the oxidative decomposition of organic matter, this equipment is called aeration equipment to forced oxygenation in the sewage, this equipment is called aeration equipment. This kind of sewage to the forced oxygenation of the equipment is called aeration equipment.
Equipment classification: surface aeration equipment, aeration equipment, underwater aeration equipment, oxygen aeration equipment and deep well aeration equipment.
Role: (1) Oxygenation, the oxygen in the air to transfer to the mixture of activated sludge flocs to supply the microbial respiration needs. Diaphragm type aeration disk
(2) mixing, mixing, is the mixture in the aeration tank is in a state of intense mixing, is the organic pollutants in the activated sludge in the three full contact. At the same time, it also plays a role in preventing the precipitation of activated sludge in the aeration basin.