Submerged Aerobic Fixed Film (SAFF) is a combination of attached and suspended growth. SAFF reactor (bioreactor) works on the principle of attached growth treatment. The Submerged Aerobic Fixed Film (SAFF) process uses support media to retain an active biomass to reduce the influent BOD Levels. Tubular diffusers are used with the SAFF media giving a good air dispersal and low level of blockage due to growth of biological film.
This technology utilizes an aerobic fixed film process that is a combination submerged attached growth and activated sludge processes. Utilizing proven submerged aerated filtration technology is design each SAFF waste water system to meet waste water treatment and land application requirement. SAFF systems are modular and can be sized for any application.
Using reliable, cost effective and energy efficient blower for aeration are with an integral flow management system and enter the biological treatment stage where it is aerated with fine bubble membrane diffuser. The continuous supply of oxygen together with the incoming food source encourage microorganism to grow on the surface of the submerged media, convening the waste water in to CO2 and water in the process.
Media of SAFF is providing more surface area for microorganism to grow. Excess micro-organism (known as humus solids) that flows out of the biological treatment stage is separated from the final effluent in another settlement stage.