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Related Experiment Videos

A self-regulated fed-batch reactor part I--the principle.

F J P Santana1, A S P Sequeira

  • 1Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Caparica, Portugal.

Environmental Technology
|October 4, 2002
PubMed
Summary

A novel fed-batch reactor self-regulates feed addition for aerobic biodegradation studies. This innovation enables precise biokinetic parameter evaluation, especially for toxic compounds.

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A self-regulated fed-batch reactor. Part II--Results obtained with a ready biodegradable substrate and an acclimatized mixed culture.

Environmental technologyยท2002
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Area of Science:

  • Environmental Microbiology
  • Biochemical Engineering
  • Bioprocess Engineering

Background:

  • Aerobic biodegradation studies require precise control over substrate feeding.
  • Evaluating biokinetic parameters is crucial for understanding microbial degradation processes.
  • Existing methods may struggle with toxic or inhibitory compounds due to uncontrolled feeding.

Purpose of the Study:

  • To develop and present a novel fed-batch reactor for aerobic biodegradation.
  • To demonstrate the reactor's self-regulating capability for feed addition.
  • To highlight its suitability for evaluating intrinsic biokinetic parameters and toxic compound degradation.

Main Methods:

  • Development of a fed-batch reactor with self-regulating feed addition.

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  • Monitoring gaseous product formation (CO2) to control feed rate.
  • Achieving equilibrium states between substrate and biomass.
  • Application to kinetic studies of biodegradation processes.

    • Main Results:

    • The reactor successfully self-regulates feed addition based on biodegradation progress.
    • Equilibrium states (substrate-biomass) were attainable, facilitating parameter evaluation.
    • The system shows promise for studying the biodegradation kinetics of inhibitory or toxic compounds.

    Conclusions:

    • The developed fed-batch reactor offers an advanced approach to aerobic biodegradation studies.
    • Its self-regulating feature enhances the accuracy of biokinetic parameter determination.
    • The reactor is a promising tool for assessing the degradation of challenging compounds.