Sequencing batch reactors (SBR) is a type of activated sludge process for the treatment of wastewater. SBR reactors treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the mixture of wastewater and activated sludge to reduce the organic matter (measured as biochemical oxygen demand (BOD) and chemical oxygen demand (COD)). The treated effluent may be suitable for discharge to surface waters or possibly for use on land.


Sequencing batch reactors (SBR) is a type of activated sludge process for the treatment of wastewater. SBR reactors treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the mixture of wastewater and activated sludge to reduce the organic matter (measured as biochemical oxygen demand (BOD) and chemical oxygen demand (COD)). The treated effluent may be suitable for discharge to surface waters or possibly for use on land.

* A higher degree of operational flexibility with respect to effluent quality and dissolved oxygen (DO) controlled aeration system

* Complete quickest settling for improved total suspended solids (TSS) removal
* Effluent quality meets current and anticipated future nitrogen requirements for surface discharge
* No seperate clarifiers
* Proven treatment process capacity upgrades and phasing do not require modification or interruption of current treatment process
* Significantly smaller footprint requires less site work on yard plumbing
* Lower initial capital cost
* Power consumption is typically less than that of a conventional plant with substantial pwer savings at lower flows.
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