SBR is another compact way of treating wastewater. It basically breaks down the process into five parts:
When the wastewater is allowed to fill the tank. This in turn can be done in three different modes:
When the wastewater is allowed to react with the bacteria so that it may biologically degrade.
When the mixing and aeration is stopped so that the sludge may settle down to the bottom.
When the clean water on the top is removed without disturbing the sludge that settles on the bottom.
When all of the clean water has been drawn off, some of the sludge in the tank is wasted to maintain a required MLSS concentration.