UNIVERSI
TÄ
TS-
BIBLIOTHEK
P
ADERBORN
Anmelden
Menü
Menü
Start
Hilfe
Blog
Weitere Dienste
Neuerwerbungslisten
Fachsystematik Bücher
Erwerbungsvorschlag
Bestellung aus dem Magazin
Fernleihe
Einstellungen
Sprache
Deutsch
Deutsch
Englisch
Farbschema
Hell
Dunkel
Automatisch
Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist
gegebenenfalls
nur via VPN oder Shibboleth (DFN-AAI) möglich.
mehr Informationen...
Universitätsbibliothek
Katalog
Suche
Details
Zur Ergebnisliste
Ergebnis 2 von 3
Datensatz exportieren als...
BibTeX
Mesophilic and thermophilic biotreatment of BTEX-polluted air in reactors
Biotechnology and bioengineering, 2007-08, Vol.97 (6), p.1423-1438
Mohammad, Balsam T.
Veiga, María C.
Kennes, Christian
2007
Details
Autor(en) / Beteiligte
Mohammad, Balsam T.
Veiga, María C.
Kennes, Christian
Titel
Mesophilic and thermophilic biotreatment of BTEX-polluted air in reactors
Ist Teil von
Biotechnology and bioengineering, 2007-08, Vol.97 (6), p.1423-1438
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2007
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
This study compares the removal of a mixture of benzene, toluene, ethylbenzene, and all three xylene isomers (BTEX) in mesophilic and thermophilic (50°C) bioreactors. In the mesophilic reactor fungi became dominant after long‐term operation, while bacteria dominated in the thermophilic unit. Microbial acclimation was achieved by exposing the biofilters to initial BTEX loads of 2–15 g m−3 h−1, at an empty bed residence time of 96 s. After adaptation, the elimination capacities ranged from 3 to 188 g m−3 h−1, depending on the inlet load, for the mesophilic biofilter with removal efficiencies reaching 96%. On the other hand, in the thermophilic reactor the average removal efficiency was 83% with a maximum elimination capacity of 218 g m−3 h−1. There was a clear positive relationship between temperature gradients as well as CO2 production and elimination capacities across the biofilters. The gas phase was sampled at different depths along the reactors observing that the percentage pollutant removal in each section was strongly dependant on the load applied. The fate of individual alkylbenzene compounds was checked, showing the unusually high biodegradation rate of benzene at high loads under thermophilic conditions (100%) compared to its very low removal in the mesophilic reactor at such load (<10%). Such difference was less pronounced for the other pollutants. After 210 days of operation, the dry biomass content for the mesophilic and thermophilic reactors were 0.300 and 0.114 g g−1support, respectively, reaching higher removals under thermophilic conditions with a lower biomass accumulation, that is, lower pressure drop. Biotechnol. Bioeng. 2007;97:1423–1438. © 2007 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0006-3592
eISSN: 1097-0290
DOI: 10.1002/bit.21350
Titel-ID: cdi_proquest_miscellaneous_30063567
Format
–
Schlagworte
Air Pollutants - metabolism
,
alkylbenzene
,
Benzene - metabolism
,
Benzene Derivatives - metabolism
,
Biodegradation, Environmental
,
Biofiltration
,
Biological and medical sciences
,
Bioreactors - microbiology
,
Biotechnology
,
Fundamental and applied biological sciences. Psychology
,
fungi
,
Hydrocarbons
,
Membrane reactors
,
Microorganisms
,
Nutrient removal
,
Organic Chemicals - metabolism
,
perlite
,
thermophilic
,
Toluene - metabolism
,
Volatilization
,
waste gases
,
Xylenes - metabolism
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von
bX