The sequencing batch reactor (SBR) is a fill-and draw activated sludge system for wastewater treatment. In this system, wastewater is added to a single “batch” reactor, treated to remove undesirable components, and then discharged. Equalization, aeration, and clarification can all be achieved using a single batch reactor.
Advantages :
Produce high quality effluent due to a high degree in operational flexibility. Simple modification of the process via PLC.
Very stable process as compared to hydraulic shock loads and underload.
User friendly due to automatic operating mode.
No extra sedimentation tank. Settling is performed in the reactor tank.
Stable clarification performance.
Stable bacteria concentration in the reactor a sludge measurement by operator is not needed
Very low OPEX due to micro-bubble aeration and airlift system (no moving parts in the reactor).
Low sludge disposal cost, since only the sludge tank and not the complete plant must be emptied periodically.