A NEW APPROACH TO THE BIOLOGICAL FILTRATION .1. THE MATHEMATICAL-MODEL


MUSLU Y.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, vol.14, no.2, pp.173-190, 1993 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 2
  • Publication Date: 1993
  • Doi Number: 10.1080/01932699308943397
  • Title of Journal : JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
  • Page Numbers: pp.173-190

Abstract

In this paper an attempt has been made to set up a relationship between the removal efficiency and the hydraulic regimes of biological filters. For granular-media trickling filters effluent concentrations have been calculated with the equation of complete mixing at low flow rates and by means of dispersed plug-flow model for large hydraulic loadings. Between the mixed flow and the dispersed flow regimes there is a transition zone. For coarse media with a specific surface area of 40 to 70 m2m-3 the mixed flow zone disappears and the substrate removal is obtained using the equation of dispersed plug flow. The above mentioned flow limits have been given as a function of the specific surface area of the media and the application of this theory to the practical problems has also been demonstrated.