Keywords: ABR, anaerobic baffled reactors, anaerobic digestion, granulation, OLR, organic loading rate, biomass, synthetic wastewater, wastewater treatment, biogas, sludge washout
The performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater
In the present study the overall performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater was first described. The reactor differs from the original ABR as follow: a modified internal lamella separator was positioned at top of each up-flow sections to separate the biogas and liquid to reduce the sludge wash out. The initial organic loading rate was 3.04 kg COD/m³ d, and gradually increased to 19.2 kg COD/m³ d within two month while soluble COD removals attained were in excess of 90%. Granulation of biomass was also observed in the reactor at the end of experiments.