Among many industrial water treatment processes, vacuum evaporation technology is favored for its relatively low energy consumption. However, this process is often accompanied by serious foaming problems. Excessive foam occupies the effective space of the evaporator, reducing heat exchange efficiency and causing evaporation capacity to decline. More seriously, foam may carry materials into the vacuum system, causing equipment corrosion, reduced pump efficiency or even process interruption, directly affecting production efficiency and cost control.
The market urgently needs a solution that can quickly eliminate foam and suppress its regeneration over the long term. An ideal defoamer must adapt to the high-temperature, negative-pressure and complex water quality environment unique to vacuum evaporation, possess excellent dispersibility and stability, and not affect subsequent process stages.
To address this series of pain points, Chemi Tech has developed a defoamer series dedicated to vacuum evaporation water treatment systems. Our solution is based on an in-depth analysis of the foaming system, and the steps are as follows: first, conduct on-site diagnosis of water quality and operating conditions to precisely analyze the causes of foam; second, match the corresponding model of Chemi Tech defoamer according to water quality characteristics (such as pH, temperature, salinity and types of organic matter); then, determine the optimal dosing point and dosage through small-scale tests, usually choosing a location at the feed inlet or in the circulation pipeline that is easy to mix; finally, formulate an automated dosing plan to achieve precise and stable process control and ensure lasting defoaming.
We once served a project that used vacuum evaporation to concentrate process water. The system had long been troubled by foam, with evaporation efficiency only 70% of the design value and frequent vacuum pump maintenance. After applying a Chemi Tech custom defoamer, the foam was rapidly eliminated within minutes of addition, the system's evaporation efficiency recovered to above 95%, the operating stability of the vacuum system improved markedly, the equipment maintenance cycle was extended, and considerable economic benefits were realized for the customer.
Chemi Tech defoamers, with outstanding performance and professional service, safeguard the stable and efficient operation of your vacuum evaporation water treatment system.