In modern water treatment process, whether it is industrial wastewater treatment, drinking water purification or swimming pool maintenance, foam problem often becomes one of the key factors affecting treatment efficiency and effect. The production of foam will not only increase the difficulty of treatment, but also may carry untreated pollutants, causing secondary pollution to the water quality. Therefore, the application of defoamers in water treatment is particularly important.

In the process of water treatment, foam is mainly formed by surfactant, microbial activities and some physical agitation activities, such as detergent, grease, etc. They can reduce the surface tension of water and promote the formation of foam. Some bacterial and algal metabolic activities will produce gas, which will combine with suspended solids in the water to form foam. Operations such as aeration, agitation, etc. will increase the gas content in the water and promote the production of foam.

Defoamer can rapidly penetrate into the foam wall, reduce its surface tension and cause foam to burst mainly by destroying the stability of foam. Some defoamers can form a thin film in water, preventing the formation of new bubbles. To inhibit the regeneration of foam, excellent defoamers should have good water solubility and dispersibility, and can be evenly distributed in water and continue to play a role.

Choosing the appropriate defoamer requires consideration of factors such as water quality characteristics, treatment processes, cost-effectiveness, etc. Common types of defoamers include organosilicon defoamers, polyether defoamers, mineral oil defoamers, etc. In practical application, tests should be carried out according to the specific conditions of foam to determine the optimal addition amount and method, so as to ensure that foam can be effectively eliminated without affecting water quality safety.

As an important means to improve water treatment efficiency and water quality safety, the rational selection and application of water treatment defoamers are of great significance for ensuring the recycling of water resources and maintaining the ecological environment. In the future, with the continuous improvement of environmental protection requirements and technological advancements, more efficient and environmentally friendly defoamer products will continue to emerge, bringing greener and more sustainable solutions to the water treatment industry.