Biological reactor in which the processes of denitrification, nitrification and sedimentation take place in a programmed cycle in one tank.
The sequential biological reactor (SBR) is a wastewater treatment system that operates in cycles consisting of several stages. The process begins with filling the reactor with wastewater. This is followed by an aeration phase, in which oxygen is supplied to microorganisms so that they can break down organic pollutants. The next stage is sedimentation, during which clean water is separated from the biological sludge. This is followed by a phase of draining the purified water from the reactor. In the last phase, the reactor is prepared for the next cycle by removing excess sludge. This cycle repeats, allowing continuous wastewater treatment. The SBR is characterized by operational flexibility, which allows the process to be adapted to changing conditions and wastewater loads.