In the context of increasingly scarce water resources and severe environmental problems, efficient and safe water treatment technologies are particularly important. In the process of water treatment, foam problem often becomes one of the key factors affecting the treatment efficiency and effluent quality. Therefore, the application of defoamers in water treatment is particularly important.

In the process of water treatment, the formation of foam often comes from a variety of reasons, including but not limited to surfactants contained in water, gases generated by microbial activities, and chemicals used in the treatment process. Foam will not only reduce the treatment capacity of water treatment equipment, but also may carry pollutants, affect the effluent quality, and even interfere with subsequent processes.

Defoamers used in water treatment mainly function through the following ways:

1、 To destroy the surface tension of foam, defoamer molecules can quickly diffuse to the surface of foam, reduce its surface tension, and make foam easy to break.

2、 Inhibit the formation of foam. Some defoamers have the ability to inhibit the formation of foam again. By changing the properties of surfactants in water, reduce the conditions for the formation of foam.

3、 Rapid response and lasting effect. Excellent defoamers should have the characteristics of rapid defoaming and long-term inhibition of foam recurrence to ensure the smooth progress of the whole water treatment process.

The selection of suitable defoamer needs to consider many factors, including the specific process of water treatment, water quality characteristics, foam type and environmental friendliness. Common types of defoamers include organosilicon defoamers, polyether defoamers, mineral oil defoamers, etc. Each type has its specific application scenarios and advantages.

In practical applications, the amount of defoamer added needs to be determined based on experiments, as too much or too little may affect the effectiveness. At the same time, regular monitoring of foam and timely adjustment of the use strategy of defoamer are the key to ensuring water treatment efficiency and water quality safety.

In summary, defoamers used in water treatment play an irreplaceable role in improving treatment efficiency and ensuring effluent quality. With the advancement of technology and the increasing demand for environmental protection, developing more efficient and environmentally friendly defoamers will be an important research direction in the field of water treatment in the future.