In the waste water treatment plants Idrobiologiki applies the method of extended aeration, which has standardized the dimensions of the tanks, depending on the capacity of the units.
Extended aeration is one of the most widespread methods and it is based on the simple principal of the microorganisms’ survival, supplying them with oxygen from the air through the blowers and the air diffusers, as well as food and the recycling of the active sludge collected in the settling tank.
Thereby, it comes on the 2 following ways depending on the case: