Foam is a frequent challenge in water treatment systems, especially in aeration tanks, biological treatment units, sludge handling, and industrial effluent processes. Excessive foam not only disrupts oxygen transfer and microbial activity but also leads to equipment overflow, pump cavitation, and reduced treatment efficiency. To maintain smooth operation and meet discharge standards, the use of effective defoamers is essential.

In biological wastewater treatment, foaming often results from surfactants, organic compounds, and filamentous bacteria. A suitable defoamer helps rapidly break surface bubbles, suppress second-generation foam, and keep aeration systems stable. In sludge dewatering and chemical dosing stages, defoamers improve separation efficiency and help prevent foam-induced delays or equipment contamination. For high-COD industrial wastewater—such as textile, pulp & paper, and chemical plants—defoamers support continuous, safe, and compliant operation.

Click on the related products links：RK-500P（Polyether Defoamer For Paper Industry）/RK-1215A（Water-based Silicone Antifoam Agent）