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Assessment of the mechanisms involved in the removal of emerging contaminants by microalgae from wastewater: a laboratory scale study
dc.contributor.author | Matamoros, Victor |
dc.contributor.author | Uggetti, Enrica |
dc.contributor.author | García Serrano, Joan |
dc.contributor.author | Bayona i Termens, Josep Maria |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2016-05-27T18:13:40Z |
dc.date.available | 2018-02-01T01:30:53Z |
dc.date.issued | 2016-01 |
dc.identifier.citation | Matamoros, V., Uggetti, E., Garcia, J., Bayona, J.M. Assessment of the mechanisms involved in the removal of emerging contaminants by microalgae from wastewater: a laboratory scale study. "Journal of hazardous materials", Gener 2016, vol. 301, p. 197-205. |
dc.identifier.issn | 0304-3894 |
dc.identifier.uri | http://hdl.handle.net/2117/87474 |
dc.description.abstract | Aerated batch reactors (2.5 L) fed either with urban or synthetic wastewater were inoculated with microalgae (dominated by Chlorella sp. and Scenedesmus sp.) to remove caffeine, ibuprofen, galaxolide, tributyl phosphate, 4-octylphenol, tris(2-chloroethyl) phosphate and carbamazepine for 10 incubation days. Non-aerated and darkness reactors were used as controls. Microalgae grew at a rate of 0.25 d-1 with the complete removal of N-NH4 during the course of the experiment. After 10 incubation days, up to 99% of the microcontaminants with a Henry’s law constant higher than 3 10-1 Pa m3 mol-1 (i.e., 4-octylphenol, galaxolide, and tributyl phosphate) were removed by volatilization due to the effect of air stripping. Whereas biodegradation was effective for removing ibuprofen and caffeine, carbamazepine and tris(2-chloroethyl) phosphate behaved as recalcitrant compounds. The use of microalgae was proved to be relevant for increasing the biodegradation removal efficiency of ibuprofen by 40% and reducing the lag phase of caffeine by 3 days. Moreover, the enantioselective biodegradation of S-ibuprofen suggested a biotic prevalent removal process, which was supported by the identification of carboxy-ibuprofen and hydroxy-ibuprofen. The results from microalgae reactors fed with synthetic wastewater showed no clear evidences of microalgae uptake of any of the studied microcontaminants. |
dc.format.extent | 9 p. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
dc.subject.lcsh | Bioreactors |
dc.subject.other | Emerging organic contaminants |
dc.subject.other | Wastewater |
dc.subject.other | Removal |
dc.subject.other | Microalgae |
dc.subject.other | Biodegradation |
dc.subject.other | Volatilization |
dc.title | Assessment of the mechanisms involved in the removal of emerging contaminants by microalgae from wastewater: a laboratory scale study |
dc.type | Article |
dc.subject.lemac | Bioreactors |
dc.contributor.group | Universitat Politècnica de Catalunya. GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient |
dc.identifier.doi | 10.1016/j.jhazmat.2015.08.050 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S030438941530042X |
dc.rights.access | Open Access |
local.identifier.drac | 17521504 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Matamoros, V.; Uggetti, E.; Garcia, J.; Bayona, J.M |
local.citation.publicationName | Journal of hazardous materials |
local.citation.volume | 301 |
local.citation.startingPage | 197 |
local.citation.endingPage | 205 |
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