What type of media filter is a Glendon biofilter?

A Glendon biofilter is classified as an up-flow media filter. This type of media filter operates by allowing wastewater to flow upward through the filter medium, which is typically a material that supports microbial growth, such as sand or gravel. As the wastewater passes through the filter, solids are removed, and biological processes take place, helping to break down organic material.

The up-flow design is effective because it encourages the retention of solids and maximizes contact time between the wastewater and the microbial biofilm on the media. This leads to improved treatment efficiency. The upward movement of water also helps to prevent clogging at the filter surface, allowing for better filtration and overall performance.

Recognizing the distinction between types of media filters is important. Suspended growth media filters do not rely on a fixed substrate for microorganisms and instead maintain them in suspension. Attached media filters allow microorganisms to attach to a surface but do not necessarily incorporate an up-flow mechanism. Aerobic media could refer to any system promoting aerobic digestion but does not specifically identify the flow direction or structure as in the case of a Glendon biofilter. Hence, the classification as an up-flow media filter accurately describes the Glendon biofilter's operational principles.