Sequencing Batch Reactors

Abstract

A sequencing batch reactor (SBR) can be either a biological SBR (BIO-SBR) or a physicochemical SBR (PC-SBR). BIO-SBR includes traditional sedimentation biological SBR, innovative flotation biological SBR (BIO-DAF-SBR), innovative membrane biologi- cal SBR (MBR-SBR), aerobic digestion SBR (AD-SBR), etc. All PC-SBR are innovative processes including at least sedimentation PC-SBR (PC-SED-SBR), flotation PC-SBR (PC- DAF-SBR), membrane PC-SBR (PC-membrance-SBR), granular activated carbon PC-SBR (PC-GAC-SBR), powdered activated carbon PC-SBR (PC-PAC-SBR), and ion exchange PC- SBR (PC-IX-SBR). Although all BIO-SBR and PC-SBR processes are introduced, special emphasis of this chapter is placed on traditional BIO-SBR which can be used for wastewater treatment aerobically (bio-oxidation and nitrification), or anoxically/anaerobically (denitrifi- cation). The advantages, disadvantages, applications, performance, theory, operation, mainte- nance, design of traditional biological SBR are presented in detail. Eleven design examples and case studies for both BIO-SBR and PC-SBR are reported.