What are the operational control requirements for a pressurized DAF

Solid Liquid Separator August 20, 2025 Dissolved Air Flotation

Adjust the dosage of coagulant based on the flocculation condition in the reaction tank and the effluent quality of the DAF unit, taking care to prevent clogging of the dosing tank.
Observe the water surface in the DAF tank. If large bubbles appear in the contact zone, check the release device.
Monitor the pattern of scum formation and determine an appropriate scraping cycle.
Observe and maintain an appropriate water level in the dissolved air tank.
Adjust the air supply from the compressor to ensure stable working pressure in the dissolved air tank.
Adjust the effluent level controller of the DAF tank to ensure stable treated water output.
During winter, when water temperature is too low, increase the recycle water flow or the dissolved air pressure to ensure effluent quality.
Keep daily operational records, including treated water volume, influent quality, chemical dosage, dissolved air water volume, dissolved air tank pressure, water temperature, power consumption, scum scraping cycle, scum moisture content, and effluent quality.