Sequencing batch reactor (SBR) is a system which works with activated
sludge principle and where aeration and sedimentation processes are
occurred in the same tank as distinct from continuous systems.
Wastewater is fed to reactor tank, purified and discharged. SBR systems
consist of 5 steps;

1-filling, 2- aeration, 3- sedimentation, 4-discharge, 5- discharge of excessive sludge (if needed).

SBR systems function as a balance tank and comply with fluctuating pollution load and quantity of raw water.

It occupies less area than classic continuous systems.

If necessary, duration and application frequency of 5 steps mentioned above can easily
be set for removal of nitrogen and phosphorus.

This system does not require a secondary settling sedimentation tank, which classic systems
require, since sedimentation is carried out in the same tank.

Therefore, it is economic.

A reactor can be produced not only as modular type but also from reinforced concrete and so it can be applied in all required capacities.