What should I do if the aeration tank is bubbling? Quickly treat the defoamer with water to solve it!

19-09-2022

The sewage aeration tank generally uses the activated sludge method for sewage treatment, which is mainly composed of three parts: the tank body, the aeration system and the water inlet and outlet. It can strengthen the contact between the organic matter in the pool, microorganisms and dissolved oxygen, oxidatively decompose the organic matter in the sewage, prevent the precipitation of activated sludge, and achieve the purpose of purifying the sewage. However, in this process, a large amount of foam will appear in the sewage aeration tank. These foams have high viscosity and a large number, and will gather on the surface of the sewage, affecting the progress of water treatment. Therefore, many people will use aeration tank defoamers to solve the foam problem.

sewage treatment defoamer

In the initial stage of the sewage aeration tank, the sludge is relatively small and the sludge load is high, which is not suitable for the water quality and growth environment of the sewage, so a large number of foams will be generated; because the sewage contains a large amount of surface active substances and organic pollutants It has the characteristics of foaming, which will also lead to the generation of foam in the sewage aeration tank; the low-load operation of the activated sludge treatment system, denitrification occurs in the sedimentation tank or where the aeration is insufficient to generate nitrogen, and the release of nitrogen will reduce pollution. The density of the sludge increases and some of the sludge floats up, resulting in foaming.


Excessive foam will affect the treatment progress and normal procedures of the sewage aeration tank, resulting in reduced sewage treatment efficiency and excessive water treatment costs; a large amount of foam will overflow the sewage aeration system, which not only leads to the normal maintenance of the sewage aeration system, It also pollutes the surrounding environment; if too much foam is not eliminated in time, it will accumulate on the surface of the sewage aeration tank, which will have a certain impact on the activated sludge and dissolved oxygen in the water, resulting in poor sewage aeration effect.


The aeration tank has high concentration of sewage treatment defoamer, less addition, rapid defoaming, and long foam suppression time. The defoamer for wastwater treatment can effectively eliminate all kinds of foam in the sewage aeration tank and prevent the foam from being generated again in the subsequent operation. The chemical stability of the antifoam is good, it can be well matched with other water treatment agents, does not affect the function of other agents, and the silicone defoamer for wastwater treatment will not chemically react with it, so it has a wide range of applications.


If you need the defoamer to eliminate foam problems, please feel free to contact us.


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