Grasas y Aceites, Vol 42, No 6 (1991)

Kinetic study of biomethanation of condensed water from the thermal concentration process of olive mill wastewater


https://doi.org/10.3989/gya.1991.v42.i6.1207

R. Borja Padilla
Instituto de la Grasa y sus Derivados (CSIC), Spain

A. Martín Martín
Depart, de Ingeniería Química. Facultad de Ciencias (Córdoba), Spain

María M. Durán Barrantes
Instituto de la Grasa y sus Derivados (CSIC), Spain

Abstract


A kinetic study of biomethanation has been carried out by using condensed water from the thermal concentration process of olive mill wastewater, which contained an organic load (6 g/l COD) that prevented it from reusing or spillage.
Two fluidized-bed bioreactors were used, one of them containing suspend biomass for reference, and the other with biomass supported on Sepiolite for the immobilization of microorganisms effecting anaerobic digestion.
The Chen-Hashimoto model of methane production has been applied, obtaining the values of the kinetic parameters μmax and K for each case studied.
The results showed an increase in the kinetic constants for the reactor with Sepiolite in relation to the one used as reference, and the value for K kinetic constant was duplicated.

Keywords


Biomethanation; Condensation water; Kinetics; Olive mill wastewater; Support

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Copyright (c) 1991 Consejo Superior de Investigaciones Científicas (CSIC)

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