Design and real-time implementation of a TS fuzzy observer for anaerobic wastewater treatment plants

A new methodology to design fuzzy observers for anaerobic wastewater treatment plants is introduced in this article. First, a general explanation of the anaerobic digestion in a completely stirred tank reactor is presented. A model of the system is explained and studied using the principal components analysis in view to choose variables and local models which characterize the bioprocess. These variables and local models will be used to design the fuzzy observer. The observer performances are validated via realistic simulations and experimentally.