Tennessee Wastewater Operator Practice Exam

What problem can arise from blower inlet air filters allowing too many particles to pass through?

1. Blower malfunction

2. Air side diffuser fouling

3. Water quality degradation

4. Increased power consumption

The correct answer is: Air side diffuser fouling

Allowing too many particles to pass through blower inlet air filters can lead to air side diffuser fouling, which is a significant issue in wastewater treatment systems. The air side diffuser is designed to evenly distribute air into the system, aiding in the aeration process. When contaminants and particulates accumulate on the diffuser surfaces, they can create blockages or uneven flow paths. This fouling can reduce the efficiency of gas exchange, impairing the system's overall performance. Over time, fouled diffusers can lead to decreased biological activity due to insufficient oxygen levels being delivered to microorganisms. This ultimately affects the treatment process and can lead to issues related to water quality and system operational efficiency. Therefore, maintaining proper air filtration is crucial to prevent such problems and ensure optimal aeration performance in wastewater treatment facilities.