Anaerobic filters ‘biofan’

The anaerobic filter is an autonomous biological wastewater treatment unit consisting of two compartments:

  • The first compartment operates as a grease collector (skimming tank).
  • In the second compartment (anaerobic biological reactor), organic matter (soluble and particulate substrate) is removed from the wastewater.

The unit is made of:

  • stainless steel (AISI 304).
  • or high density polyethylene (HDPE).


  • Replaces the septic tank.
  • Without electricity.
  • No odors.
  • Without maintenance.
  • Soundless operation.
  • Flexibility in periodic operation (weekends, etc.).


  • Residences
  • Bars
  • Vacation homes
  • Restaurants
  • Rental rooms
  • Catering

Infiltration tunnels

‘biofan’, with the Infiltration tunnels, are a complete solution for wastewater treatment and disposal. The tunnels are recommended for the disposal of treated wastewater due to:

  • Shorter tunnel length compared to perforated pipes.
  • More disposal time due to water storage.
Tunnel dimensions
Length (m)Width (m)Height (m)