A new model for anaerobic processes of up-flow anaerobic sludge blanket reactors based on cellular automata

Ioannis V. Skiadas, Birgitte Kiær Ahring

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The advantageous performance of the UASB reactors is due to the immobilisation of the active biomass, since bacteria coagulate forming aggregates usually called granules. Changes in organic loading rate, hydraulic loading rate or influent substrate composition usually result in changes in granule characteristics and lead to different reactor behaviour. A dynamic mathematical model has been developed for the anaerobic digestion of a glucose based synthetic wastewater in UASB reactors. Cellular automata (CA) theory has been applied to simulate the granule development process. The model takes into consideration that granule diameter and granule microbial composition are functions of the reactor operational parameters and is capable of predicting the UASB performance and the layer structure of the granules.
    Original languageEnglish
    JournalWater Science and Technology
    Volume45
    Issue number10
    Pages (from-to)87-92
    ISSN0273-1223
    Publication statusPublished - 2002

    Keywords

    • anaerobic digestion
    • cellular automata
    • granules
    • model
    • UASB

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