Wastewater Treatment Plant Maintenance: A Practical Guide
Why wastewater treatment plants need planned maintenance
Small and large wastewater treatment systems rely on several pieces of equipment working together. Pumps move wastewater, blowers provide air for biological treatment, diffusers or aeration equipment transfer oxygen, and controls manage the process. A fault in one part can affect the rest of the plant.
Key equipment to inspect
Pumps
Check that pumps start and stop correctly, are free from unusual vibration or noise and are delivering the expected duty. Electrical readings and control operation can help identify developing faults.
Blowers and aeration
Blowers should be checked for correct operation, ventilation, noise, vibration and signs of overheating. Aeration pipework and diffusers should also be inspected because restricted air flow can affect treatment performance.
Media and treatment zones
Where a plant uses fixed or moving media, the condition and movement of the media should be checked in accordance with the manufacturer's requirements. Excessive solids, poor aeration or hydraulic problems can affect the biological process.
Controls and alarms
Level controls, timers, alarms, contactors, overloads and other control equipment should be tested as appropriate. A treatment plant can appear to be running while an alarm or control fault is preventing the process from operating correctly.
Why preventative maintenance is worthwhile
Planned inspections provide an opportunity to identify issues before they become a complete failure. Maintenance records can also help operators understand recurring problems and plan replacement work.
Midland Pumps provides planned and reactive support for wastewater and pumping equipment across Weymouth, Dorset and surrounding areas. Get in touch to discuss a site.