Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents

Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents

9 pages, 6 figures, 3 tables.-- PMID: 16808959 [PubMed].-- Online version available on Jun 30, 2006.

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Main Authors: Petrovic, Mira, Gehringer, P., Eschweiler, H., Barceló, Damià
Format: artículo biblioteca
Language:English
Published: Elsevier 2007-01
Subjects:Alkylphenol ethoxylates, Advanced oxidation processes, Electron beam irradiation, Surfactants, Wastewater treatment,
Online Access:http://hdl.handle.net/10261/10830
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spelling dig-idaea-es-10261-108302009-02-20T12:13:57Z Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents Petrovic, Mira Gehringer, P. Eschweiler, H. Barceló, Damià Alkylphenol ethoxylates Advanced oxidation processes Electron beam irradiation Surfactants Wastewater treatment 9 pages, 6 figures, 3 tables.-- PMID: 16808959 [PubMed].-- Online version available on Jun 30, 2006. Electron beam irradiation (EBI), as one of the most efficient advanced oxidation processes, was applied to the treatment of sewage treatment plant (STP) effluent, with the objective of evaluating the effectiveness of radiolytic decomposition of multi-class surfactants. Target compounds, included several high-volume surfactant groups, such as alkylphenol ethoxylates (APEOs) and their biotransformation products, linear alkylbenzene sulfonates (LAS), alkyl sulfates (AS), alkylether sulfates (AES), coconut diethanol amides (CDEA), alcohol ethoxylates (AEO) and polyethylene glycols (PEGs). EBI treatment of STP effluent (total concentration of APEO-derived compounds 265 μg l-1 being APE(2)C the most abundant by-degradation products) resulted in efficient decomposition of all alkylphenolic compounds; elimination of 94% longer ethoxy chain nonylphenol ethoxylates (NPEO, n(EO) = 3–15) was obtained when 3 kGy were applied. Slightly less efficient decomposition of short ethoxy chain oligomers (NPEO1 and NPEO2) was observed, resulting in disappearance of about 80% of the initially present compounds. LC-MS analysis of treated wastewater suggested that the mechanism of EBI degradation of APEOs is a combination of two parallel pathways: a progressive shortening and oxidation of the ethoxy chain, which resulted in a formation of short ethoxy chain oligomers and APECs and central fission that resulted in formation of PEGs. Decomposition of APECs at 1 kGy initially yielded APs, which were subsequently eliminated applying higher radiation doses. With a radiation dose of 2 kGy about 95% of NPE(1)C and 97% of NPE(2)C were decomposed. Similar elimination rates were obtained for octylphenolic compounds. Radiolytic treatment applied was also very effective in removing PEGs formed as by-products from APEO degradation, as well as in decomposing other surfactants, such as linear LAS, AS and AES. The work has been supported by the EU Project PTHREE (EVK1-2001-00283) and by the Spanish Ministerio de Ciencia y Tecnologia (PPQ2002-10945-E). IST (UK) is gratefully acknowledged for providing the SPE cartridges and Merck (Germany) for providing the HPLC columns. Peer reviewed 2009-02-19T11:47:10Z 2009-02-19T11:47:10Z 2007-01 artículo http://purl.org/coar/resource_type/c_6501 Chemosphere 66(1): 114-122 (2007) 0045-6535 http://hdl.handle.net/10261/10830 10.1016/j.chemosphere.2006.05.008 en http://dx.doi.org/10.1016/j.chemosphere.2006.05.008 none 162 bytes application/msword Elsevier
institution IDAEA ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-idaea-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IDAEA España
language English
topic Alkylphenol ethoxylates
Advanced oxidation processes
Electron beam irradiation
Surfactants
Wastewater treatment
Alkylphenol ethoxylates
Advanced oxidation processes
Electron beam irradiation
Surfactants
Wastewater treatment
spellingShingle Alkylphenol ethoxylates
Advanced oxidation processes
Electron beam irradiation
Surfactants
Wastewater treatment
Alkylphenol ethoxylates
Advanced oxidation processes
Electron beam irradiation
Surfactants
Wastewater treatment
Petrovic, Mira
Gehringer, P.
Eschweiler, H.
Barceló, Damià
Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
description 9 pages, 6 figures, 3 tables.-- PMID: 16808959 [PubMed].-- Online version available on Jun 30, 2006.
format artículo
topic_facet Alkylphenol ethoxylates
Advanced oxidation processes
Electron beam irradiation
Surfactants
Wastewater treatment
author Petrovic, Mira
Gehringer, P.
Eschweiler, H.
Barceló, Damià
author_facet Petrovic, Mira
Gehringer, P.
Eschweiler, H.
Barceló, Damià
author_sort Petrovic, Mira
title Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
title_short Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
title_full Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
title_fullStr Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
title_full_unstemmed Radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
title_sort radiolytic decomposition of multi-class surfactants and their biotransformation products in sewage treatment plant effluents
publisher Elsevier
publishDate 2007-01
url http://hdl.handle.net/10261/10830
work_keys_str_mv AT petrovicmira radiolyticdecompositionofmulticlasssurfactantsandtheirbiotransformationproductsinsewagetreatmentplanteffluents
AT gehringerp radiolyticdecompositionofmulticlasssurfactantsandtheirbiotransformationproductsinsewagetreatmentplanteffluents
AT eschweilerh radiolyticdecompositionofmulticlasssurfactantsandtheirbiotransformationproductsinsewagetreatmentplanteffluents
AT barcelodamia radiolyticdecompositionofmulticlasssurfactantsandtheirbiotransformationproductsinsewagetreatmentplanteffluents
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