In modern society, water treatment is a key link in ensuring the safety and sustainable use of water resources, and its efficiency and quality are directly related to multiple aspects such as public health, industrial production, and ecological environment. However, in the process of water treatment, the formation of foam often becomes a major problem, which not only affects the treatment efficiency, but also may cause damage to equipment and lower the water quality standard. Therefore, the application of defoamers in water treatment is particularly important.

The formation of foam in the water treatment process is mainly due to the interaction between surfactants, organics, microbial metabolites and chemicals added in the treatment process. These substances are easy to form a stable bubble layer under physical operations such as stirring, aeration or filtration, and then aggregate into foam.

Defoamers for water treatment mainly destroy the stability of foam. Defoamer molecules can quickly penetrate into the interior of foam, reduce the surface tension of bubble membrane, and make bubbles easy to break. Some defoamers can form a film in water to inhibit the regeneration of foam and prevent the formation of new bubbles. High quality defoamers need to have good water solubility and chemical stability, be able to work effectively over a wide range of pH and temperature, and be not easily degraded by microorganisms in water.

Defoamers for water treatment are widely used in various fields such as municipal water supply, industrial wastewater treatment, swimming pool water treatment, papermaking, and petrochemicals. When selecting defoamers, the most suitable type should be chosen based on the specific water quality characteristics and treatment process. Ensure that defoamers are non-toxic and harmless, and will not cause secondary pollution to the environment and human health. On the premise of ensuring effectiveness, consider cost-effectiveness and choose products with high cost-effectiveness.