EFLOSAF Submerged Aerated Filter

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The Corodex EFLOSAF is a high rate biological treatment process based on submerged aerated biofilter using a fixed film, with an attached biological growth process. It is designed to achieve a final effluent of 10/10/2 in terms of BOD5/TSS/N-NH3. The high rate biological oxidation process is performed using an extremely efficient Submerged Aerated Filter with a very high specific surface area.

The EFLOSAF process flow entails the following:

  • Incoming sewage is lifted by a pump at average flow rate and delivered to the Biozone Submerged Aerated Filter
  • Biologically treated liquor discharges from the Biozone to a secondary settlement tank
  • Biologically treated liquor gravitates through the final settlement tank
  • Final effluent discharges from the settlement tank to a chlorine contact tank
  • Treated sewage effluent is filtered via pressure sand filters prior to final discharge or reuse

Advantages of EFLOSAF Submerged Aerated Filter:

  • Small foot print
  • Low sludge production
  • No moving parts
  • High efficiency
  • Stable high quality effluent of 10 BOD and 10 TSS