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.
prior to an SBR for municipal and industrial applications. Equalization may be required after the SBR, depending on the downstream process. If equalization is not used prior to filtration, the filters need to be sized in order to receive the batch of wastewater from the SBR, resulting in a large surface area required for filtration.
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