What is one of the causes of white billowing foam during plant operations?

One cause of white billowing foam during wastewater treatment plant operations is the presence of toxic conditions. When there are toxic substances in the wastewater, they can disrupt the normal biological processes occurring in the treatment system, particularly affecting the microorganisms that play a critical role in breaking down organic matter. This disruption can lead to the production of foam as the improper balance of biological activity creates conditions that favor the formation of bubbles.

In a foaming scenario, toxins may inhibit the growth or activity of certain microbes while allowing others, often less desirable, to proliferate. These factors can lead to the accumulation of solids in the aeration basin, where mixing and aeration should typically help maintain a stable environment conducive to effective treatment. As a result, foam formation can become pronounced and problematic, signaling underlying issues that need to be addressed to maintain proper plant operations.