Defoamer for water treatment is a chemical additive specially used to eliminate or inhibit foam in water. According to their different chemical compositions and mechanisms of action, water treatment defoamers can be divided into various types such as organosilicon type, polyether type, mineral oil type, fatty acid type, and composite type. Each type of defoamer has its own characteristics and is suitable for different water treatment scenarios.

The mechanism of water treatment defoamer mainly includes destroying foam surface tension, accelerating foam drainage, inhibiting foam regeneration, etc. They can quickly penetrate into the liquid membrane of foam, reduce its surface tension, cause the foam to burst and release the wrapped gas. At the same time, some defoamers can also form a film on the foam surface to prevent the formation of new foam.

Water treatment defoamers are widely used in various fields such as sewage treatment, industrial wastewater treatment, tap water treatment, papermaking, textile printing and dyeing, and oilfield development. In sewage treatment, defoamer can effectively solve the foam problem caused by organic matter, surfactant, etc., and improve the treatment efficiency; In industrial wastewater treatment, it can prevent foam overflow and protect equipment from corrosion.

When choosing water treatment defoamers, factors such as water quality characteristics, treatment processes, cost-effectiveness, and environmental requirements should be considered. Specifically, priority should be given to selecting defoamers that are environmentally compatible, harmless to microorganisms, and do not affect water quality indicators; At the same time, it is also necessary to consider its defoaming speed, durability, and ease of recycling and disposal.

With the increasing awareness of environmental protection, the environmental performance of water treatment defoamers is receiving more and more attention. During the selection and use process, it should be ensured that the defoamer does not contain harmful substances and will not cause secondary pollution to the water body; At the same time, attention should be paid to its biodegradability and toxicity indicators to ensure its safe discharge in the natural environment.