Wastewater Foam Control Solution: Chemi Tech Defoamer Expertise

Excessive foam is a persistent challenge in wastewater treatment processes, plaguing numerous operating facilities. This foam not only hinders aeration efficiency and reduces oxygen transfer but can also cause equipment overflow, environmental mess, and disrupt downstream unit operations. Traditional physical foam removal methods often address symptoms, not the root cause, while haphazard addition of general-purpose agents may interfere with microbial activity or introduce new contaminants.

Addressing these pain points, Chemi Tech, through in-depth research into water treatment systems, has developed a series of high-efficiency specialty defoamers. Our solution does not merely mask the problem but targets the root causes of foam generation – surfactants, colloidal particles, and specific process conditions.

The specific solution steps are as follows:

Step 1: Problem Diagnosis and Sample Analysis. Our technical support team assists in analyzing foam composition and generation stage, whether it's start-up foam in the aeration tank, surfactant foam, or biological foam.

Step 2: Product Selection and Compatibility. Based on the analysis, we recommend the most compatible defoamer from our silicone, polyether, and non-silicone series, ensuring effective defoaming without impacting system bioactivity.

Step 3: Dosing Point and Method Optimization. Guidance is provided for optimal dosing points like the aeration basin, aerobic zone, or effluent launder, using the most cost-effective methods such as drip feed or injection.

Step 4: Performance Monitoring and Program Adjustment. Continuous tracking of foam suppression and water quality parameters allows for fine-tuning of dosage to achieve stable, long-term control.

We assisted a wastewater treatment facility in an industrial park in Eastern China. Its biological system frequently generated persistent white foam due to fluctuating influent composition, leading to unstable online monitoring data. By applying a customized composite defoamer from Chemi Tech and implementing precise dosing via a metering pump at the head of the plug-flow aeration tank, foam was significantly suppressed within three days. The system returned to stable operation within two weeks, with no negative impact on COD or ammonia nitrogen removal rates, achieving a balance between clean operation and cost control.

Choosing Chemi Tech means choosing a reliable technical partner. We are committed to helping you completely overcome foam challenges and ensuring smooth, efficient wastewater system operation with precise products and professional service.