Automation of an anaerobic-aerobic wastewater treatment process

In this paper the treatment capacity and effluent quality of an anaerobic-aerobic sewage treatment system composed of a UASB (upflow anaerobic sludge blanket) unit in series with a SBR (sequencing batch reactor) is evaluated. The aerobic part of the system (the SBR) is automated and the concentration of OD (dissolved oxygen) is used as a control parameter for the aeration period.