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A simplified method for determination of kinetic parameters to describe the aerobic biodegradation of two important phenolic constituents of olive mill wastewater by a heterogeneous microbial culture

A simplified method for determination of kinetic parameters to describe the aerobic biodegradation of two important phenolic constituents of olive mill wastewater by a heterogeneous microbial culture
A simplified method for determination of kinetic parameters to describe the aerobic biodegradation of two important phenolic constituents of olive mill wastewater by a heterogeneous microbial culture
Determination of biokinetic parameters for tyrosol (4-hydroxyphenethyl alcohol) and caffeic acid (3,4 dihydroxy cynammic acid) (the two most representative phenolic compounds present in Olive Mill Wastewater, OMW) was achieved using a simplified Monod kinetic model. The experimental procedure utilized acclimated microbial cultures to which substrate was added at low concentration relative to the microbial mass. Nonlinear regression analysis confirmed the application of this approach by being able to accurately predict substrate utilization rates. Values for the maximum specific growth rate, ?max, and the half-saturation coefficient, Ks, for tyrosol ranged from 0.4 to 3.5 days-1 and from 6.2 to 18.5 mg/1 respectively. The corresponding values for caffeic acid were 0.9 to 2.3 days-1 and 9.5 to 39.7 mg/1. The biomass yield coefficients for tyrosol and caffeic acid were 0.55 and 0.62 mg VSS/mg substrate and the corresponding decay rates were 0.15 and 0.12 days-1. The simplified approach yielded results that were comparable to values reported for other phenolic compounds determined using more sophisticated experimental and mathematical techniques.
kinetics, aerobic degradation, phenolic compounds, tyrosol, caffeic acid, heterogeneous cultures
1093-4529
607-626
Borja, R.
ed513484-04ff-4424-ab79-dc715ca63146
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Alba, J.
0d5b56ef-a2d6-44dd-8564-320a5482108e
Borja, R.
ed513484-04ff-4424-ab79-dc715ca63146
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Alba, J.
0d5b56ef-a2d6-44dd-8564-320a5482108e

Borja, R., Banks, C.J. and Alba, J. (1995) A simplified method for determination of kinetic parameters to describe the aerobic biodegradation of two important phenolic constituents of olive mill wastewater by a heterogeneous microbial culture. Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering, 30 (3), 607-626. (doi:10.1080/10934529509376220).

Record type: Article

Abstract

Determination of biokinetic parameters for tyrosol (4-hydroxyphenethyl alcohol) and caffeic acid (3,4 dihydroxy cynammic acid) (the two most representative phenolic compounds present in Olive Mill Wastewater, OMW) was achieved using a simplified Monod kinetic model. The experimental procedure utilized acclimated microbial cultures to which substrate was added at low concentration relative to the microbial mass. Nonlinear regression analysis confirmed the application of this approach by being able to accurately predict substrate utilization rates. Values for the maximum specific growth rate, ?max, and the half-saturation coefficient, Ks, for tyrosol ranged from 0.4 to 3.5 days-1 and from 6.2 to 18.5 mg/1 respectively. The corresponding values for caffeic acid were 0.9 to 2.3 days-1 and 9.5 to 39.7 mg/1. The biomass yield coefficients for tyrosol and caffeic acid were 0.55 and 0.62 mg VSS/mg substrate and the corresponding decay rates were 0.15 and 0.12 days-1. The simplified approach yielded results that were comparable to values reported for other phenolic compounds determined using more sophisticated experimental and mathematical techniques.

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More information

Published date: March 1995
Keywords: kinetics, aerobic degradation, phenolic compounds, tyrosol, caffeic acid, heterogeneous cultures

Identifiers

Local EPrints ID: 75316
URI: http://eprints.soton.ac.uk/id/eprint/75316
ISSN: 1093-4529
PURE UUID: 234a9efd-9653-49a7-9f6f-7aa8f6128bde
ORCID for C.J. Banks: ORCID iD orcid.org/0000-0001-6795-814X

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:39

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Contributors

Author: R. Borja
Author: C.J. Banks ORCID iD
Author: J. Alba

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