Heterogeneous modeling of an anaerobic sequencing batch biofilm reactor (ASBBR)

The objective of this study was to estimate the first-order intrinsic kinetic constant (k 1 ) and the liquid-phase mass transfer coefficient (k c ) in a bench-scale anaerobic sequencing batch biofilm reactor (ASBBR) fed with glucose. A dynamic heterogeneous mathematical model, considering two phases...

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Veröffentlicht in:Journal of environmental engineering and science 2008-07, Vol.7 (4), p.319-325
Hauptverfasser: Cabrera Padilla, Rebeca Yndira, Miqueleto, Ana Paula, Zaiat, Marcelo, Kwong, Wu Hong
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container_end_page 325
container_issue 4
container_start_page 319
container_title Journal of environmental engineering and science
container_volume 7
creator Cabrera Padilla, Rebeca Yndira
Miqueleto, Ana Paula
Zaiat, Marcelo
Kwong, Wu Hong
description The objective of this study was to estimate the first-order intrinsic kinetic constant (k 1 ) and the liquid-phase mass transfer coefficient (k c ) in a bench-scale anaerobic sequencing batch biofilm reactor (ASBBR) fed with glucose. A dynamic heterogeneous mathematical model, considering two phases (liquid and solid), was developed through mass balances in the liquid and solid phases. The model was adjusted to experimental data obtained from the ASBBR applied for the treatment of glucose-based synthetic wastewater with approximately 500 mg L -1 of glucose, operating in 8 h batch cycles, at 30 °C and 300 rpm. The values of the parameters obtained were 0.8911 min -1 for k 1 and 0.7644 cm min -1 for k c . The model was validated utilizing the estimated parameters with data obtained from the ASBBR operating in 3 h batch cycles, with a good representation of the experimental behavior. The solid-phase mass transfer flux was found to be the limiting step of the overall glucose conversion rate.
doi_str_mv 10.1139/S08-003
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subjects ASBBR
ASBBR (anaerobic sequencing batch biofilm reactor)
Biofilms
Bioreactors
Design and construction
Dextrose
Environmental science
Glucose
Indexing in process
Mass transfer
mathematical model
Mathematical models
Methods
Microbial mats
modèle mathématique
Properties
Purification
Q1
Reactors
réacteur anaérobie séquentiel discontinu à biofilm
Sewage
simulation
Slurry reactors
traitement des eaux usées
wastewater treatment
Water treatment
title Heterogeneous modeling of an anaerobic sequencing batch biofilm reactor (ASBBR)
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