A robust fuzzy-logic-based controller for bio-methane production in anaerobic fixed-film reactors
2015
Robles Martinez, Angel | Latrille, Eric | Ruano, M.V. | Steyer, Jean-Philippe
The main objective of this work was to develop a robust controller for bio-methane production in continuous anaerobic fixed-bed reactors. To this aim, a fuzzy-logic-based control system was developed, tuned and validated in an anaerobic fixed-bed reactor at pilot scale that treated raw winery wastewater. The proposed controller regulated the flow-rate of wastewater entering the system as a function of the gaseous outflow rate of methane and the effluent Volatile Fatty Acids (VFA) concentration. Simulation results show that the proposed controller allowed achieving process stability even when operating at high VFA concentrations. Pilot results showed the potential of this control approach to maintain the process working properly under similar conditions to the ones expected at full-scale plants.
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