Modelling and Experiments on Fluidized-Bed Biofilm Reactors

Autor:	R. Ramadori, L. Bignami, B. Eramo, E. Rolle, R Gavasci
Rok vydání:	1991
Předmět:	Environmental Engineering Fixed bed business.industry Biofilm Experimental data Fluidized bed Liquid velocity Environmental science Experimental work Fluidization Porosity Process engineering business Water Science and Technology
Zdroj:	Scopus-Elsevier
ISSN:	1996-9732 0273-1223
Popis:	Over the last few years considerable attention has been devoted to biological fluidized-bed technology which seems to be potentially more advantageous than both dispersed biomass processes and fixed bed systems. An obstacle to the spreading of this technology is the lack of rigorous criteria in designing reactors, due to the poor knowledge of interconnections of fluid-dynamic aspects with kinetic ones. This paper reviews the rational basis for reactor design and reports on the experimental tests carried out in order to gain a better understanding in the areas of biofilm modelling and fluidization mechanics. In particular a biofilm model, in the general case of the Michaelis and Menten equation, was developed and its validity was verified utilizing experimental data obtained in nitrifying batch tests. As to fluidization mechanics the experimental work confirms the Wen and Yu(1966) approach to correlate the bed porosity with the superficial liquid velocity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7437e68cf51bbc3a3d0f3e31cbab9e69 https://doi.org/10.2166/wst.1991.0184 Zobrazit plný text záznamu