ADM1 performance using SS-OFMSW with non-acclimated inoculums

M. El-Fadel, R. Maroun, R. Bou Fakher Eldeen, S. Ghanimeh

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    3 Scopus citations


    This paper assesses the anaerobic digestion (AD) of the source-sorted organic fraction of municipal solid waste (SS-OFMSW). For this purpose, an experimental programme was implemented involving the operation and monitoring of two bench-scale anaerobic digesters, continuously fed with SSOFMSW. The mathematical model (ADM1) was then applied to simulate the process of AD of SSOFMSW. While start-up of the digesters was relatively slow, re-inoculation with cattle manure with effluent dilution reduced the acclimation period and achieved better stability, accommodating a feeding rate at an OLR = 2.39 kg TVS m-3 day-1. The high recorded methane gas production rate, reaching (0.1-2.5 m3 CH4/m3 reactor day), confirms the excellent biodegradability of the type of waste used (SS-OFMSW) and its suitability for AD. Satisfactory simulations of soluble chemical oxygen demand (COD), pH, and methane composition of biogas were obtained, whereas volatile fatty acid (VFA) concentrations in both reactors were over-predicted albeit capturing its general trend.

    Original languageBritish English
    Pages (from-to)1885-1892
    Number of pages8
    JournalWater Science and Technology
    Issue number9
    StatePublished - 2012


    • ADM1
    • Anaerobic digestion
    • Municipal solid waste


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