The problem of regulating intermediate metabolites (acetate, propionate and hydrogen) in anaerobic digestion processes is considered. The problem is solved by using a feedback linearising technique applied to a reduced order model obtained from pseudo-steady-state approximations. It is illustrated with an experimental application to an anaerobic digestion pilot plant.
Bastin, G., Dochain, D., Van Breusegem, V., Naveau, H., Nyns, E.-J., & Renard, P. (1992). Design of reduced order adaptive controllers for anaerobic digestion processes. Journal “A, 33(3), 81-85. https://hdl.handle.net/2078.5/148818 (Original work published 1992)