Faced with the dual challenges of global water resource protection and environmental protection, the development of environmentally friendly water treatment defoamers has become a hot topic in the industry. This type of defoamer not only needs to have efficient defoaming performance, but also needs to meet the requirements of low toxicity, good biodegradability, and minimal environmental impact.

Environmentally friendly water treatment defoamers use natural plant extracts, animal fats and oils as raw materials, with good biocompatibility and degradability, and are also an important development direction for environmentally friendly defoamers in the future. Biobased and biodegradable polymer defoamers are obtained through microbial fermentation or chemical synthesis, and have the characteristics of low toxicity and high efficiency. They can naturally degrade after use, reducing environmental pollution. Inorganic defoamers, such as silicates and aluminates, are widely used in specific water treatment applications due to their non toxicity, harmlessness, and good stability.

The development of environmentally friendly water treatment defoamers faces many challenges, such as how to improve product stability and applicability while ensuring defoaming performance; How to reduce costs and achieve large-scale industrial production, etc. To this end, researchers are constantly exploring new technologies and materials, such as improving the dispersibility and activity of defoamers through nanotechnology, and optimizing the preparation process of natural product based defoamers using biotechnology.

With the increasing awareness of environmental protection and the promotion of regulatory policies, the market demand for environmentally friendly water treatment defoamers will continue to grow. Especially in the fields of drinking water treatment, industrial wastewater treatment, and agricultural irrigation water purification, the application of environmentally friendly defoamers will be more widespread. In the future, through continuous technological innovation and industry university research cooperation, it is expected to develop more environmentally friendly defoamers with excellent performance and reasonable cost, contributing to the sustainable utilization of water resources.