Aerobic cometabolic degradation of chlorinated ethenes in a two step system

EM Sipkema*, J Mocoroa, W de Koning, JETV Vlieg, KJ Ganzeveld, A A C M Beenackers, D B Janssen

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


    Many of the chlorinated ethenes (CEs) can aerobically only be converted by cometabolism, a process in which the organism converts the contaminant that it cannot use for growth as a result of the nonspecificity of one of its enzymes. For bioremediation systems, the methanotroph Methylosinus trichosporium OB3b seems to be the best choice. Based on both experimental data on the toxicity of the cometabolic conversion products and engineering considerations, it is concluded that a two step system in which growth is separated from CE conversion is practically the most feasible. Reactor choice is considered and modelling studies are performed. If for the main design parameters (influent biomass concentration, residence time, temperature and mixing properties of the conversion reactor) optimal values are chosen, good performance is obtainable.

    Original languageEnglish
    Title of host publicationIN SITU AND ON-SITE BIOREMEDIATION, VOL 3
    Place of PublicationCOLUMBUS
    Number of pages6
    ISBN (Print)1-57477-031-4
    Publication statusPublished - 1997
    Event4th International In Situ and On-Site Bioremediation Symposium - , Lao People's Democratic Republic
    Duration: 28-Apr-19971-May-1997

    Publication series



    Other4th International In Situ and On-Site Bioremediation Symposium
    Country/TerritoryLao People's Democratic Republic

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