The working principle and actual effect of alkali-resistant water treatment defoamer

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The working principle and actual effect of alkali-resistant water treatment defoamer
By : Zilibon Chemical

2025/3/19
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In many industrial production processes, such as papermaking, printing and dyeing, and chemical industry, a large amount of alkaline wastewater will be generated. The alkalinity in these wastewaters is high, and foam is easily generated during the treatment process, affecting the treatment effect and equipment operation. Therefore, it is necessary to use alkali-resistant water treatment defoamers to eliminate foam and improve water treatment efficiency and quality.

Alkali-resistant water treatment defoamers mainly achieve defoaming function by reducing the surface tension of the foam liquid film. When the defoamer is added to the system containing foam, it can quickly disperse on the foam surface, destroy the elastic film of the foam, and cause the foam to break and disappear.

In the process of papermaking cooking black liquor treatment, alkali-resistant water treatment defoamers can effectively eliminate the foam in the black liquor, improve the treatment efficiency and quality of the black liquor, and reduce pollution to the environment. In the strong alkaline refining agent and cleaning agent under strong alkaline conditions in the textile printing and dyeing industry, alkali-resistant water treatment defoamers can be used to solve the foam problem caused by the strong alkaline environment and ensure the smooth progress of the production process.

During the black liquor treatment process of a paper mill, the foam problem was serious because the black liquor contained a large amount of alkali and lignin. After adding the alkali-resistant water treatment defoamer, the foam problem was effectively solved, the black liquor treatment effect was significantly improved, and the defoamer had no negative impact on the subsequent black liquor reuse and discharge treatment.

Alkali-resistant water treatment defoamer plays an important role in the treatment of alkaline wastewater. It can effectively eliminate foam, improve water treatment efficiency and quality, and meet environmental protection requirements. With the continuous advancement of science and technology and the increase in market demand, the performance of alkali-resistant water treatment defoamers will continue to improve, and the application field will continue to expand.
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