Membrane diffusers

Submerged aerator associated to a suppressor for the oxygenation of urban or industrial wastewater.


The fine bubbles diffusion systems can be either fixed or liftable. They are associated to EPDM or silicone diffusers:

  • Length of the tube: 1,000 mm / 750 mm / 500 mm
  • Discs with a diameter of: 9 or 12 inches
  • Plates
  • Perforated membranes

    BIOTRADE also provides a wide range of connectors for the replacement of fine bubbles diffusers.

    Technical features

    Those aeration devices are constituted of:

  • An inlet with a custom-made flange
  • A round or squared feed pipe
  • A purge valve
  • A nozzle for the formic acid injection
  • A lifting device


  • A control command for the purge valve
  • A nozzle for the manometer
  • A wall support for the lifting device


    Biotrade can also provide turnkey solutions of diffusers replacement:

  • Disassembling of the diffusers
  • Assembly of the new diffusers
  • Waste treatment
  • Lifting
  • Divers