Linguistic modeling of biogas generation in simulated anaerobic bioreactor landfills

نویسندگان

  • Mohamed S. Abdallah
  • Mostafa A. Warith
چکیده

A fuzzy linguistic model was developed to simulate the effect of leachate recirculation and sludge addition on the biogas generation in anaerobic bioreactor landfills. The model was designed using a fuzzy logic system which incorporated 3 input variables (time, leachate recirculation, and sludge addition) and a single manipulated output (biogas generation rate). The experimental work involved the operation of simulated lab-scale bioreactors for over a year with various operating schemes. The model was verified and validated against measured data which was compiled from the present experiment as well as earlier published studies. RÉSUMÉ Un modèle de logique floue a été développé pour simuler les effets de la recirculation du lixiviat et de l’ajout de boues activées sur la génération de biogaz dans les bioréacteurs anaérobie enfouis. Le modèle comporte trois variables d’entrées (le temps, la recirculation du lixiviat, et l’addition de boues) et une variable de sortie calculée (le taux de génération de biogaz). Le travail expérimental a consisté en l’opération pendant plus d’un an de modèles réduits de bioréacteurs à l’échelle du laboratoire avec divers modes opératoires. Le modèle a été vérifié et validé avec les données mesurées au cours de l’expérience ainsi que de données compilées à partir de la littérature.

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تاریخ انتشار 2008