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Kinetics of an anaerobic fluidized bed system used for the purification of fruit processing waste water

Borja, R. and Banks, C.J. (1994) Kinetics of an anaerobic fluidized bed system used for the purification of fruit processing waste water Chemical Engineering Journal, 54, (2), b25-b32. (doi:10.1016/0923-0467(94)06053-3).

Record type: Article


A study of the kinetics of the anaerobic digestion of fruit processing waste-water was carried out. A 1.25 1, fluidized bed bioreactor operating at 35 °C and containing a saponite-immobilized biomass at a concentration of 8.95 g volatile suspended solids (VSS) per litre was used. The bioreactor worked satisfactorily in a range of hydraulic retention times from 2.5 to 12.5 days and eliminated more than 97% of the initial chemical oxygen demand (COD) in all instances. Guiot's kinetic model was used to determine the macroenergetic parameters of the system, and showed it to have a yield coefficient for the biomass Y of 0.090 g VSS per g COD and a specific rate of substrate uptake for cell maintenance m of 0.035 (g COD per g VSS) day?1. The experimental results also showed the rate of substrate uptake (Rs, g (COD per g VSS) day?1) correlated with the concentration of biodegradable substrate (Sb, g COD 1?1) through an equation of the Michaelis-Menten type.

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Published date: June 1994


Local EPrints ID: 74756
ISSN: 1385-8947
PURE UUID: ce1d7841-15cb-4c33-898c-ad0d498e673d

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:45

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