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Removal of 2-butoxyethanol gaseous emissions by biotrickling filtration packed with polyurethane foam

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Removal of 2-butoxyethanol gaseous emissions by biotrickling filtration packed with polyurethane foam

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dc.contributor.author	Pérez Gil, María del Carmen
dc.contributor.author	Álvarez Hornos, Francisco Javier
dc.contributor.author	Engesser, Karl H.
dc.contributor.author	Dobslaw, Daniel
dc.contributor.author	Gabaldón García, Carmen
dc.date.accessioned	2017-04-28T14:30:15Z
dc.date.available	2017-04-28T14:30:15Z
dc.date.issued	2016
dc.identifier.citation	Pérez Gil, María del Carmen Alvarez Hornos, Francisco Javier Engesser, Karl H. Dobslaw, Daniel Gabaldón García, Carmen 2016 Removal of 2-butoxyethanol gaseous emissions by biotrickling filtration packed with polyurethane foam New Biotechnology 33 2 263 272
dc.identifier.uri	http://hdl.handle.net/10550/58326
dc.description.abstract	The removal of 2-butoxyethanol from gaseous emissions was studied using two biotrickling filters (BTF1 and BTF2) packed with polyurethane foam. Two different inoculum sources were used: a pure culture of Pseudomonas sp. BOE200 (BTF1) and activated sludge from a municipal wastewater treatment plant (BTF2). The bioreactors were operated at inlet loads (ILs) of 130 and 195 g m−3 hour−1 and at an empty bed residence time (EBRT) of 12.5 s. Under an IL of ∼130 g m−3 hour−1, BTF1 presented higher elimination capacities (ECs) than BTF2, with average values of 106 ± 7 and 68 ± 8 g m−3 hour−1, respectively. However, differences in ECs between BTFs were decreased by reducing the irrigation intervals from 1 min every 12 min to 1 min every 2 hours in BTF2. Average values of EC were 111 ± 25 and 90 ± 7 g m−3 hour−1 for BTF1 and BTF2, respectively, when working at an IL of ∼195 g m−3 hour−1. Microbial analysis revealed a significant shift in the microbial community of BTF1 inoculated with Pseudomonas sp. BOE200. At the end of the experiment, the species Microbacterium sp., Chryseobacterium sp., Acinetobacter sp., Pseudomonas sp. and Mycobacterium sp. were detected. In BTF2 inoculated with activated sludge, the denaturing gradient gel electrophoresis (DGGE) technique showed a diverse microbial community including species that was able to use 2-butoxyethanol as its carbon source, such as Pseudomonas aeruginosa and Pseudomonas putida as representative species. Although BTF1 inoculated with Pseudomonas sp. BOE200 and higher gas velocity (probably greater gas/liquid mass transfer rate) showed a slight improvement in performance, the use of activated sludge as inoculum seems to be a more feasible option for the industrial application of this technology.
dc.language.iso	eng
dc.relation.ispartof	New Biotechnology, 2016, vol. 33, num. 2, p. 263-272
dc.subject	Biotecnologia
dc.subject	Aire Contaminació
dc.title	Removal of 2-butoxyethanol gaseous emissions by biotrickling filtration packed with polyurethane foam
dc.type	journal article	es_ES
dc.date.updated	2017-04-28T14:30:15Z
dc.identifier.doi	10.1016/j.nbt.2015.11.006
dc.identifier.idgrec	111926
dc.rights.accessRights	open access	es_ES