EFLO SAF is a biological treatment process based on submerged aerated biofilter using a fixed film, 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.
|EFLO SAF - Submerged Aerated Filter Technical Data|
The heart of the system is a structured matrix of welded and rigid Polypropylene PP media with a very high specific surface area. This allows for high concentrations of attached biomass to be maintained in the Biozone. The unique flow pattern within the media ensure high rates of biological oxidation with relatively low retention time. The media ensures air bubble retention is prolonged and allows for exceptionally high oxygen transfer rates with low energy consumption.
The flow of raw sewage through to treated final effluent is as follows: