What is the main function of zoogleal mass on a trickling filter?

The main function of zoogleal mass on a trickling filter is to reduce the organic content in wastewater. Zoogleal mass is a slimy, gelatinous substance made up of microorganisms, including bacteria, algae, and fungi, which forms on the surface of the filter media within the trickling filter system. As wastewater passes over this mass, microorganisms metabolize organic pollutants present in the water, effectively breaking them down. This biological process leads to the reduction of organic content, as the microorganisms utilize the organic compounds as a food source for growth and reproduction.

The presence of zoogleal mass is essential for maintaining a stable and effective trickling filter operation, as it directly contributes to the biological treatment of the wastewater. Therefore, the function of reducing organic content is crucial for achieving the desired effluent quality and compliance with environmental regulations.