سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۸

نویسنده(ها):

M Karrabi – Laboratoire des Ecoulements Géophysiques et Industriels, UMR 5519 CNRS-UJF-G-INP, BP 53X, Cedex 09 Grenoble, France
P Séchet – Laboratoire des Transferts en Hydrologie et Environnement, UMR 5564 CNRS-UJF-G-INP, BP 53X, Cedex 09 Grenoble, France.
Ch Morra – Laboratoire des Transferts en Hydrologie et Environnement, UMR 5564 CNRS-UJF-G-INP, BP 53X, Cedex 09 Grenoble, France & Laboratoire des Transferts en Hydrologie et Environnement, UMR 5564 CNRS-UJF-G-INP, BP 53X, Cedex 09 Grenoble, France.
Ch Geindreau –

چکیده:

The effect of biofilm growth on the clogging of a biofilter is studied on a laboratory scale pilot. At the steady state, pressure, porosity and biomass concentration profiles are used to study the evolution of the permeability with the biomass content: it is seen that the EPS and biomass micro structuration have a strong effect on the permeability reduction. That explains why Kozeny-like models found in literature fail to predict the actual permeability values. This finding is of primary importance to derive correlations or theoretical permeability laws which can be implemented in simple, operational engineering models for the design of biofilters.