Transcription of Wastewater Technology Fact Sheet: Sequencing Batch Reactors
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Wastewater Technology Fact Sheet: Sequencing Batch Reactors
United StatesEnvironmental ProtectionAgencyOffice of WaterWashington, 932-F-99-073 September 1999 WastewaterTechnology Fact SheetSequencing Batch ReactorsDESCRIPTIONThe Sequencing Batch reactor (SBR) is a fill-and-draw activated sludge system for wastewatertreatment. In this system, Wastewater is added to asingle Batch reactor, treated to removeundesirable components, and then , aeration, and clarification can all beachieved using a single Batch reactor. To optimizethe performance of the system, two or more batchreactors are used in a predetermined sequence ofoperations. SBR systems have been successfullyused to treat both municipal and industrialwastewater. They are uniquely suited forwastewater treatment applications characterized bylow or intermittent flow Batch processes similar to the SBRare not a recent development as commonly 1914 and 1920, several full-scale fill-and-draw systems were in operation.
is the biological conversion of nitrate-nitrogen to nitrogen gas. An anoxic condition is defined as an environment in which oxygen is not present and nitrate-nitrogen is used by the microorganisms as the electron acceptor. In a conventional biological nutrient removal (BNR) activated sludge system, mixed fill is comparable to the anoxic zone ...
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