Performance optimization and validation of ADM1 simulations under anaerobic thermophilic conditions

N.M. Atallah, M. El-Fadel, S. Ghanimeh, P.E. Saikaly, M. Abou-Najm
Bioresource Technology, volume 174, p. 243255, (2014)

Performance optimization and validation of ADM1 simulations under anaerobic thermophilic conditions

Keywords

Thermophilic anaerobic digestion, Food waste, ADM1

Abstract

​In this study, two experimental sets of data each involving two thermophilic anaerobic digesters treating food waste, were simulated using the Anaerobic Digestion Model No. 1 (ADM1). A sensitivity analysis was conducted, using both data sets of one digester, for parameter optimization based on five measured performance indicators: methane generation, pH, acetate, total COD, ammonia, and an equally weighted combination of the five indicators. The simulation results revealed that while optimization with respect to methane alone, a commonly adopted approach, succeeded in simulating methane experimental results, it predicted other intermediary outputs less accurately. On the other hand, the multi-objective optimization has the advantage of providing better results than methane optimization despite not capturing the intermediary output. The results from the parameter optimization were validated upon their independent application on the data sets of the second digester.

Code

DOI: 10.1016/j.biortech.2014.09.143

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