Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/14896
Title: The use of an oil absorber as a strategy to overcome starvation periods in degrading 1,2-dichloroethane in waste gas
Authors: Koutinas, Michalis 
Baptista, Inês I.R. 
Peeva, Ludmila G. 
Ferreira Jorge, Ruben M 
Livingston, Andrew G 
Major Field of Science: Natural Sciences
Field Category: Biological Sciences
Λέξεις-κλειδιά: 1,2-dichloroethane;Absorber;Bioscrubber;Fluorescence in situ hybridisation;Mathematical model;Starvation period
Ημερομηνία Έκδοσης: 1-Μαρ-2007
Πηγή: Biotechnology & Bioengineering, 2007, Volume 96, Issue 4, Pages 673-686
Περιοδικό: Biotechnology & Bioengineering 
Περίληψη: This work investigates the use of an oil absorber as an operational strategy in vapor phase bioreactors exposed to starvation periods, during the treatment of inhibitory pollutants. After being exposed to 1,2-dichloroethane (DCE) starvation periods, the response and stability of a combined oil-absorber-bioscrubber (OAB) system was compared to that of a bioscrubber only (BO) system. In the BO system, after a 5.2 days starvation period, the DCE removal efficiency was reduced to 12%, and 6 days were needed to recover the initial removal efficiency when the DCE feed resumed. The total organic discharged (TOD(DCE)) was 16,500 g(DCE) m(bioscrubber) (-3) after the DCE starvation. Biomass analysis performed using fluorescence in situ hybridisation (FISH) showed that the microbial activity was significantly reduced during the starvation period and that 5 days were needed to recover the initial activity, after the re-introduction of DCE. In contrast, the performance of the OAB system was stable during 5.2 days of DCE starvation. The DCE removal efficiency was not affected when the DCE feed resumed and the TOD(DCE) was significantly reduced to 2,850 g(DCE) m(bioscrubber) (-3). During starvation, the activity of the microbial culture in the OAB system showed a substantially lower decrease than in the BO system and recovered almost immediately the initial activity after the re-introduction of DCE. Additionally, a mathematical model describing the performance of the OAB system was developed. The results of this study show that the OAB system can effectively sustain the biological treatment of waste gas during starvation periods of inhibitory pollutants.
URI: https://hdl.handle.net/20.500.14279/14896
ISSN: 10970290
DOI: 10.1002/bit.21133
Rights: © 2006 Wiley Periodicals, Inc.
Type: Article
Affiliation : Imperial College London 
Universidade Católica Portuguesa 
Publication Type: Peer Reviewed
Εμφανίζεται στις συλλογές:Άρθρα/Articles

CORE Recommender
Sorry the service is unavailable at the moment. Please try again later.
Δείξε την πλήρη περιγραφή του τεκμηρίου

SCOPUSTM   
Citations

10
checked on 6 Νοε 2023

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
0
checked on 29 Οκτ 2023

Page view(s)

377
Last Week
9
Last month
7
checked on 22 Φεβ 2025

Google ScholarTM

Check

Altmetric


Όλα τα τεκμήρια του δικτυακού τόπου προστατεύονται από πνευματικά δικαιώματα