Application of defoamer in sewage treatment

In the process of modern sewage treatment, defoamer, as an important auxiliary agent, plays a role that cannot be ignored. It effectively inhibits the generation and expansion of foam, helps the sewage treatment system to maintain efficient and stable operation, and optimizes the overall treatment effect. Whether in industrial wastewater treatment, or in the field of municipal sewage treatment, defoamer has a wide range of applications.
The action principle of defoamer


In wastewater treatment, especially in the process of biodegradation and gas flotation separation, it is easy to produce a lot of foam. Foam will not only affect the normal operation of the equipment, resulting in unstable operation, but also may lead to insufficient contact between gas and liquid in the sewage treatment process, reducing the treatment efficiency. Through its unique surface activity, the defoamer can rapidly reduce the surface tension of the foam and make the foam burst, thus effectively reducing the generation and expansion of the foam.


Specific application of defoamer in sewage treatment




1. Biological treatment system
In biological treatment processes such as activated sludge process and biofilm process, foam generation is a common problem, especially in the high load treatment process. The antifoam agent can control the foam, maintain the stable operation of the biological reaction tank, avoid foam overflow, ensure the normal metabolism of microorganisms and the effective treatment of wastewater.


2. Air flotation separation
Air flotation separation is one of the common sewage treatment methods, where the production of a large number of bubbles can lead to unstable operation. Defoamer can effectively eliminate foam in the air flotation system, improve the efficiency of air flotation, reduce equipment maintenance needs, and ensure smooth separation of water.


3. Chemical precipitation method
In the precipitation process of heavy metals or pollutants in sewage, defoamer can effectively avoid the formation of foam, improve the reaction efficiency, and reduce the waste of chemical agents.


4. Sludge treatment
In sludge dewatering, concentration and other treatment processes, foam will affect the treatment efficiency and increase energy consumption. The use of defoamer can effectively eliminate the foam in the sludge treatment process, reduce the equipment resistance, and improve the dehydration effect.




Advantages of defoamer




5. Efficient defoaming: immediately eliminate the foam in the treatment process to improve work efficiency.


6. Safety and environmental protection: The defoaming agent is generally prepared with non-toxic and harmless raw materials, which will not cause secondary pollution to the water environment.


7. Economical and practical: a small amount of use can achieve significant results, reducing energy consumption and chemical use in sewage treatment.


8. Strong compatibility: compatible with various sewage treatment processes, suitable for different sewage treatment systems.






The application of defoamer in sewage treatment, with its high efficiency, safety and economic characteristics, has become an indispensable product to improve the efficiency of sewage treatment. With the continuous enhancement of environmental awareness and the continuous progress of sewage treatment technology, defoamer will play an increasingly important role in the future sewage treatment process. Choosing high-quality defoamer can not only improve the effect of sewage treatment, but also contribute to environmental protection.