Dynamic responses of biofilters to changes in the operating conditions in the process of removing toluene and xylene from air

Hdl Handle:
http://hdl.handle.net/10149/98214
Title:
Dynamic responses of biofilters to changes in the operating conditions in the process of removing toluene and xylene from air
Authors:
Marek, J. (Jiri); Páca, J. (Jan); Gerrard, A. M. (Mark)
Affiliation:
University of Teesside. School of Science and Technology.
Citation:
Marek, J., Pacá. J. and Gerrard, A. M. (2000) 'Dynamic responses of biofilters to changes in the operating conditions in the process of removing toluene and xylene from air', Acta Biotechnologica, 20 (1), pp.17-29.
Publisher:
Wiley - VCH Verlag
Journal:
Acta Biotechnologica
Issue Date:
2000
URI:
http://hdl.handle.net/10149/98214
DOI:
10.1002/abio.370200104
Abstract:
The dynamic behaviour of biofilters intended to remove toluene and xylene from air was studied during transient states. Laboratory scale biofilters were filled with a mixture of peat, bark and wood and inoculated with a mixed microbial population. Toluene and xylene were applied both as single pollutants and as mixtures. Attention was focused on the evaluation of the following transients: the response of biofilters to step changes and peaks in pollutant concentrations, the effect of changes between single and multiple pollutant loadings and the response to shutdown periods. The biofilters demonstrated a good dynamic stability during transient states induced by changes in inlet pollutant concentrations. Their time periods did not exceed three hours. No interaction between xylene and toluene degradation was observed during changes in loading with single pollutants or their mixture. The performance interruptions lasting less than 24 hours were found to have no significant influence on the removal efficiency of biofilters. When the biofilters were reacclimated after longer starvation periods, a short temporary decrease in efficiency whose minimum and duration were proportional to the length of a preceding shutdown period was observed. The longest starvation period (7 days) resulted in a reacclimation lasting 7 hours only. Adaptations of a microbial population to new operating conditions as well as sorption/desorption processes were suggested as the main factors influencing the dynamic response characteristics.
Type:
Article
Language:
en
Keywords:
biofilter; response; air pollution; degradation; desorption; time; wood
ISSN:
0138-4988; 1521-3846
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/ [Accessed 07/05/2010]
Citation Count:
15 [Scopus, 07/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorMarek, J. (Jiri)en
dc.contributor.authorPáca, J. (Jan)en
dc.contributor.authorGerrard, A. M. (Mark)en
dc.date.accessioned2010-05-07T15:05:00Z-
dc.date.available2010-05-07T15:05:00Z-
dc.date.issued2000-
dc.identifier.citationActa Biotechnologica; 20(1):17-29en
dc.identifier.issn0138-4988-
dc.identifier.issn1521-3846-
dc.identifier.doi10.1002/abio.370200104-
dc.identifier.urihttp://hdl.handle.net/10149/98214-
dc.description.abstractThe dynamic behaviour of biofilters intended to remove toluene and xylene from air was studied during transient states. Laboratory scale biofilters were filled with a mixture of peat, bark and wood and inoculated with a mixed microbial population. Toluene and xylene were applied both as single pollutants and as mixtures. Attention was focused on the evaluation of the following transients: the response of biofilters to step changes and peaks in pollutant concentrations, the effect of changes between single and multiple pollutant loadings and the response to shutdown periods. The biofilters demonstrated a good dynamic stability during transient states induced by changes in inlet pollutant concentrations. Their time periods did not exceed three hours. No interaction between xylene and toluene degradation was observed during changes in loading with single pollutants or their mixture. The performance interruptions lasting less than 24 hours were found to have no significant influence on the removal efficiency of biofilters. When the biofilters were reacclimated after longer starvation periods, a short temporary decrease in efficiency whose minimum and duration were proportional to the length of a preceding shutdown period was observed. The longest starvation period (7 days) resulted in a reacclimation lasting 7 hours only. Adaptations of a microbial population to new operating conditions as well as sorption/desorption processes were suggested as the main factors influencing the dynamic response characteristics.en
dc.language.isoenen
dc.publisherWiley - VCH Verlagen
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/ [Accessed 07/05/2010]en
dc.subjectbiofilteren
dc.subjectresponseen
dc.subjectair pollutionen
dc.subjectdegradationen
dc.subjectdesorptionen
dc.subjecttimeen
dc.subjectwooden
dc.titleDynamic responses of biofilters to changes in the operating conditions in the process of removing toluene and xylene from airen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. School of Science and Technology.en
dc.identifier.journalActa Biotechnologicaen
ref.citationcount15 [Scopus, 07/05/2010]en
or.citation.harvardMarek, J., Pacá. J. and Gerrard, A. M. (2000) 'Dynamic responses of biofilters to changes in the operating conditions in the process of removing toluene and xylene from air', Acta Biotechnologica, 20 (1), pp.17-29.-
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