A wet scrubber requires regular inspection, servicing and monitoring to maintain reliable pollutant removal and ensure the system continues operating at its intended airflow and treatment efficiency.
Routine maintenance typically involves checking the circulating pumps, chemical dosing equipment, fans, spray systems, sensors and controls. The packing media and mist eliminator should also be inspected for scale, blockages or deposits that could restrict airflow or reduce contact between the contaminated air and scrubbing liquid.
Exeon’s scrubX™ wet scrubber system has a packaged design intended to make routine servicing straightforward, with the main treatment and control components integrated into the system.
What Parts of a Wet Scrubber Need Regular Checking?
A typical wet scrubber maintenance programme may include inspection of:
- Circulating pumps and pipework
- Chemical dosing pumps and reagent supply
- Liquid levels
- pH sensors and other instrumentation
- Fans and extraction equipment
- Packing media
- Mist eliminators
- Spray nozzles and liquid distribution
- Ductwork and connections
- Controls and alarms
- Chemical storage
- Drainage and blowdown arrangements
Each component contributes to treatment performance. A blocked nozzle, poorly distributed liquid or failing pump, for example, can reduce contact between the gas and liquid and affect contaminant removal.
Why Does the Packing Media Need Inspecting?
Packed wet scrubbers rely on the media inside the treatment tower to create a large contact area between the polluted air and scrubbing liquid.
Over time, deposits, scale or accumulated solids may affect the media depending on the contaminants being treated and the quality of the circulating liquid. Excessive build-up can restrict airflow or interfere with liquid distribution.
Routine inspection therefore helps identify whether the packing requires cleaning or other maintenance before performance is affected.
Exeon’s wider industrial odour and emission control systems are designed around both treatment performance and the practical requirements of long-term industrial operation.
How Often Should a Wet Scrubber Be Serviced?
There is no universal maintenance interval for every wet scrubber. Service frequency depends on factors including:
- Operating hours
- Contaminant concentration
- Chemical consumption
- Dust and particulate loading
- Water quality
- Process variability
- Required emission performance
A system operating continuously in a demanding waste or chemical environment may require different inspection intervals from one treating a relatively stable, lower-load process.
Monitoring airflow, pressure, pH, chemical use and treatment performance can help identify changes before they result in a loss of emission control.
Wet scrubbers may also form part of a larger industrial air filtration system incorporating technologies such as hi-flo™ activated carbon filtration. In these installations, maintenance should consider the complete extraction and treatment process rather than the scrubber alone.
Regular servicing, correct chemical management and straightforward access to components can help maintain removal efficiency, avoid unnecessary chemical consumption and reduce the risk of unexpected system downtime over the working life of the wet scrubber.
Contact Exeon today to arrange a site consultation or request a tailored proposal. Our technical team will assess your airflow volumes and contaminant profile to design a system that delivers consistent emission control.