Model predictive control of an activated sludge process: A case study

This paper details a case study application of model predictive control for a wastewater treatment process in Lancaster, North England. The control system was implemented in real time, together with a plant monitoring system for the purposes of process supervision. Following implementation, the model predictive control system provided significant benefits compared with the previously applied control system. These benefits included a reduction of over 25% in power usage and a similar increase in plant efficiency. The system therefore represents a useful tool in helping the water industry to reach its goal of significantly reducing its carbon footprint.

Research Highlights
► Case study application demonstrating benefits of advanced process control.
► Advanced control of dissolved oxygen produced 25% reduction in energy usage.
► Monitoring 'quality' of data used provided robust control and operational savings.