What causes air binding in filtration systems?

Air binding in filtration systems is caused primarily by a reduction of pressure from negative head operation. When a filter operates under negative pressure conditions, it can create a situation where dissolved gases, particularly air, are released from the water and can subsequently become trapped within the filter media. This trapping of air can hinder the flow of water through the filter, leading to reduced filtration efficiency and potentially requiring maintenance to relieve the air binding.

In the context of filtration systems, it is crucial to maintain appropriate pressure levels to ensure that air does not accumulate. While excessive water pressure might lead to other issues, it does not directly cause air binding as negative pressure does. Similarly, while overuse of coagulant aids can affect the filter operation, it does not inherently create an environment for air binding. High temperatures may influence the treatment process and affect the water's characteristics, yet they do not directly relate to the air binding phenomenon as much as the pressure dynamics do.