Performance optimization and validation of ADM1 simulations under anaerobic thermophilic conditions

Nabil M. Atallah, Mutasem El-Fadel, Sophia Ghanimeh, Pascal Saikaly, Majdi Abou-Najm

    Research output: Contribution to journalArticlepeer-review

    19 Scopus citations

    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.

    Original languageBritish English
    Pages (from-to)243-255
    Number of pages13
    JournalBioresource Technology
    Volume174
    DOIs
    StatePublished - 1 Dec 2014

    Keywords

    • ADM1
    • Food waste
    • Thermophilic anaerobic digestion

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