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Modelling of a recirculating granular medium filter's processes.

C Boutin1, R Parouty, C Ménoret

  • 1Cemagref, Water Quality and Pollution Prevention, 3bis, quai Chauveau, CP 220, 69336 Lyon, France. catherine.boutin@cemagref.fr

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|August 31, 2002
PubMed
Summary

French small farm factories face new effluent regulations. A new attached growth culture model aids in treating high-concentration, low-volume wastewater affordably and efficiently.

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Area of Science:

  • Environmental Engineering
  • Biotechnology
  • Wastewater Treatment

Background:

  • French small farm factories require effective effluent treatment due to upcoming regulations.
  • Limited treatment options exist for high-concentration, small-volume industrial wastewater.
  • Existing methods may not be economically viable for small food processing industries.

Purpose of the Study:

  • To adapt and model an attached growth culture treatment system for small-scale agro-food industry effluents.
  • To develop a predictive model for optimizing treatment performance and system design.
  • To present the model's structure, parameter values, and validation against experimental data.

Main Methods:

  • Development of a comprehensive model integrating hydrodynamic, oxygen, and solute transport, and bacterial evolution sub-models.

Related Experiment Videos

  • Simulation of treatment processes based on wastewater characteristics, hydraulic and organic loads, and operational cycles.
  • Parameter calibration through comparison of model simulations with experimental data from pilot and full-scale plants.

    • Main Results:

    • The model accurately predicts eliminated organic loads and discharge concentrations over time.
    • Simulations provide insights into oxygen and biomass distribution within the treatment system.
    • Model validation confirms its utility for sizing full-scale treatment filters.

    Conclusions:

    • The developed attached growth culture model is a valuable tool for designing and operating wastewater treatment systems in small agro-food industries.
    • The model offers a cost-effective and efficient solution for managing challenging industrial effluents.
    • This approach supports regulatory compliance and sustainable practices in the food processing sector.