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.
may consist of a thickener and an aerobic digester. With SBRs there is no need for return activated sludge (RAS) pumps and primary sludge (PS) pumps like those associated with conventional activa ted sludge systems. With the SBR, there is typically only one sludge to handle. The need for gravity thickeners prior to digestion is determined
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