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Waste water supply<\/b><\/p>\n
The waste water enters the first compartment where the solid matter gravitational decanting takes place, and due to the density difference between fats and water, the separation of fats takes place, rising to the upper part of the decanter compartment.<\/p>\n
Aeration<\/b><\/p>\n
From the half of the decanter compartment, with the help of an airlift, the reactor compartment is fed, where, through a sequence of aeration processes with different time-stages, the decomposition of the organic parts of the active sludge takes place in the presence of nutrients: nitrogen and phosphorus, nitrification and denitrification and others processes of decomposition and demineralization of organic matter.<\/p>\n
Settling (Clearing)<\/b><\/p>\n
In this phase, the light sediment in suspension is allowed to be deposited on the bottom of the aeration compartment, and the clear water remains in the upper part, from where it will be taken over by the evacuation air-lift.<\/p>\n
Evacuation<\/b><\/p>\n
The evacuation of clear water takes place from the upper part of the clearing compartment and is sent to a secondary settling compartment, from which samples can also be taken. The evacuation of the water can be into natural receivers, in the area, in an absorbent well or it can be stored in a container for later use, according to European regulations.<\/p>\n
Recirculation<\/b><\/p>\n
Recirculation of sludge or separation of the active sludge from the emulsion, and the return of part of the sludge to the aeration basin is done after the clear water has been drained. The sludge is transferred back to the primary treatment compartment, where the process resumes, thus ensuring a complete treatment cycle.<\/p>\n<\/div><\/div><\/div>