The main functions and advantages and disadvantages of aerators in the aeration tank

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Advantages: Oxygenation, transfer the oxygen in the air to the mixed liquid, to supply the needs of the microorganisms in the activated sludge to breathe. Stir and mix. The mixed liquid in the aeration tank is in a violent mixing state, so that the activated sludge, dissolved oxygen, and organic matter in the sewage are fully contacted, and at the same time, the sludge is prevented from settling.

As the sludge concentration and water depth become higher and higher, the aeration tank is required to be covered, and the requirements for non-clogging, long life, and maintenance-free aerators are becoming higher, and the use of swirling will become more and more trending. The disadvantage of the swirling flow is: because it is usually hoisted on the top of the pool and connected by metal pipes, the cost of the pipes far exceeds that of the plastic pipes with microporous aeration, and the initial investment is relatively high. Although the service life is several times that of micropores, it is free of maintenance, but it needs long-term comprehensive measurement to be cost-effective.

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