This Paper Summarises The State of The Art in Automatic Control Systems for Submerged MBRs

This review paper summarises the state of the art in automatic control systems for submerged membrane bioreactors (MBRs). It classifies the available knowledge as a function of the manipulated and controlled variables used. Membrane bioreactor (MBR) technology has become relatively widespread as an advanced treatment for both industrial and municipal wastewater, especially in areas that are prone to water scarcity. Although operational cost is a key issue in MBRs, currently only a few key papers and inventions have been published that aim to optimise and enhance MBR efficiency. This review by Spanish researchers summarises the available solutions in the area of automatic control systems, and represents a starting point for future research on automation and control for MBRs. In this review of the state of the art, different control systems are evaluated comparatively, distinguishing between control systems used for the filtration process and those used for the biological process of MBRs. The challenge faced by integrated control systems is also described. The existing knowledge is classified according to the manipulated variables, the operational mode (open-loop or closed-loop), and the controlled variables used. Source: workingwithwater.filtsep.com