The effect of shock loads on the performance of an anaerobic baffled reactor (ABR). 1. Step changes in feed concentration at constant retention time

Fundamentals of the static granular bed reactor

“…After the shock load in the SGBR, the shorter HRT was maintained. Unlike shock studies with other systems (Chua et al, 1997;Nachaiyasit and Stukey, 1997;, COD and TSS removal in the SGBR remained high throughout the entire transition.…”

“…An anaerobic baffled reactor of a plug flow type system, observations were made as the feed changed from 4 to 8 g COD/L for 8 days and as the feed changed from 4 to 15 g COD/L for 13 days (Nachaiyasit and Stukey, 1997). During the study, the system was maintained at a 20 h HRT during different loading conditions.…”

Anaerobic Digestion

“…Construction is relatively simple, there is no requirement for mechanical mixing and there is high stability to shock loading [109]. Furthermore the design of the reactor allows some separation of acidogenic and methanogenic phases longitudinally and can thereby operate as a two-phase system [110,111]. …”

The Anaerobic Baffled Reactor (Abr): Performance and Microbial Population at Various Cod Loading Rates

“…ABR has a higher resistance of both hydraulic and organic shock loads than some anaerobic processes. ABR can be designed to improve biomass retention in reactor, resulting in a longer SRT [2], [3] without need of packing media or a solid-settling chamber or sludge granulation. The compartmentalized structure in ABR is an important key of retaining biomass within the reactor.…”