In the wastewater treatment process, excessive foam is a common and stubborn problem troubling many operators. This foam not only hinders aeration and reduces oxygen transfer efficiency, but can also cause equipment overflow, dirty the environment, and even affect the normal operation of downstream process units. Traditional physical defoaming methods often treat the symptoms rather than the root cause, while casually adding ordinary additives may interfere with microbial activity or introduce new contamination.
In response to these pain points, Chemi Tech has developed a series of high-efficiency, dedicated defoamers based on in-depth research into water treatment systems. Our solution does not simply mask the problem, but targets the very sources of foam, including surface-active substances, colloidal particles, and specific process conditions.
The specific solution steps are as follows:
Step one: problem diagnosis and sample analysis. Our technical support team will help you analyze the foam composition and the stage at which it forms, whether it is start-up foam in the aeration tank, surfactant foam, or biological foam.
Step two: product selection and matching. Based on the analysis results, we recommend the most suitable defoamer from our silicone, polyether, and non-silicone series, ensuring efficient defoaming without affecting the biochemical activity of the system.
Step three: optimization of dosing point and dosing method. We guide you to apply the most economical and effective dosing methods, such as dripping or spraying, at key points including the aeration tank, aerobic section, or effluent channel.
Step four: performance monitoring and fine-tuning. We continuously track foam suppression and water quality parameters, adjusting the dosage as needed to achieve stable, long-term control.
We once assisted a wastewater treatment facility in an industrial park in East China whose biochemical system frequently produced stubborn white foam due to fluctuating influent composition, causing unstable online monitoring data. By applying Chemi Tech's customized composite defoamer and precisely dosing it with a metering pump at the head of the plug-flow aeration tank, foam was significantly suppressed within three days, and the system returned to stable operation within two weeks, without any negative impact on COD or ammonia nitrogen removal rates, achieving a balance between cleaner production and cost control.
Choosing Chemi Tech means choosing a reliable technical partner. We are committed to helping you completely eliminate foam problems with precise products and professional service, ensuring smooth and efficient operation of your wastewater treatment system.