CitationNicolas, J. and J.L. Vasel (1990). Model of thermal exchanges and of airflow in a trickling filter. Rev. Sci. Eau, 3 (3) : 303-324. [article in french] Original title : Modélisation des échanges thermiques et de la circulation d'air dans un lit bactérien. |
Abstracts
The temperature is one of the main parameters governing the
biological reactions in a trickling filter.
The present model proposes a set of equations applicable for the determination
of a temperature profile, and therefore of an average temperature, inside the
trickling filter, when the flowrate and the temperature at entry of the liquid,
the ambient air conditions (temperature and humidity) and the thermal exchange
coefficients of the tower are known. Moreover, the airflow induced by natural
draft is also computed when the head loss coefficients in the media and at
entry are known.
Beside this formulation, the first results of modal fitting on pilot plants are discussed. With few further developments, the method could be useful for the optimization of the operating temperature in a trickling filter which guarantees a sufficient airflow rate in the tower.
Keywords
Trickling filter, thermal model, airflow, aeration.
Corresponding author
Nicolas, J., Fondation Universitaire Luxembourgeoise, rue des Déportés, 140, B-6700 Arlon, Belgique