How to maintain DAF in wastewater treatment

• Visual & Operational Monitoring

  Observe system during operation to ensure uniform bubble generation - uneven or sparse bubbles often indicate issues with the dissolved air system. Monitor clarity of treated water and consistency of sludge/scum removal.

• Scraper & Sludge Systems

  Frequently inspect scraper and sludge discharge systems for smooth movement. Remove accumulated debris or sludge that may jam chains or belts to prevent disruption of separation process.

• Air Tank & Release Valves

  Periodically check dissolved air tank for leaks and clean release valves to prevent clogging by fine solids. Clogged valves reduce air dissolution, weakening contaminant removal capability.

• DAF Tank Cleaning

  Drain tank periodically to scrub inner walls, removing settled sludge or mineral deposits. Buildup reduces tank capacity and interferes with water flow and bubble distribution.

• Air Compressor Maintenance

  Check oil levels and filter conditions regularly. Dirty filters restrict airflow while low oil levels cause compressor overheating.

• Chemical Delivery Systems

  Inspect hoses and pumps for leaks. Ensure chemical storage containers are sealed to prevent contamination or evaporation. Regularly check coagulant/flocculant quality.

• Corrosion Protection

  Apply corrosion-resistant coatings to metal components as needed, especially those in contact with wastewater, to extend system lifespan.