Abstract

With the increasing deterioration of world water resources, configuring a technical and economic viable wastewater treatment and recycle technology to satisfying the increasing complexity of wastewater and stringent environmental regulation has been a great challenge over the past decades. Developing reliable technologies for wastewater treatment is of urgent importance. In recent years, anaerobic baffled reactor (ABR) treating wastewaters effectively, have received considerable attention in the literature. This paper reviews the development and application, performance and characteristics, modeling of the ABR for wastewater treatment and the combination of ABR with other processes during the last decade. This paper provides a critical review on the ABR for treatment of refractory wastewaters. It was indicated that ABR had become a promising alternative for wastewaters treatment with great further development potential.

Key words: Anaerobic baffled reactor, anaerobic process, reactor development,performance, solids retention, full-scale.

Abbreviation

ABR, anaerobic baffled reactor; CABR, carrier anaerobic baffled reactor; COD, chemical oxygen demand; CSTR, completely stirred tank reactor;GRABBER, granular-bed anaerobic baffled reactor; HMABR, hybrid aerating membrane-anaerobic baffled reactor; HRT, hydraulic retention time; MABR,modified anaerobic baffled reactor, NB, nitrobenzene; PABR, periodic anaerobic baffled reactor; PNP, p-nitrophenol; RTD, residence time distribution; SFABR, split-feed anaerobic baffled reactor; SRT, solid retention time; TCOD, total chemical oxygen demand; UASBs, anaerobic sludge blanket reactors; VFA, volatile fatty acid