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 upflow anaerobic sludge blanket unit in series with a sequencing batch reactor (SBR) is evaluated. The aerobic part of the system (the SBR) is automated and the concentration of dissolved oxygen is used as a control parameter for the aeration period.