Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation

Biodegradation of lower chlorinated benzenes (tri-, di- and monochlorobenzene) was assessed at a coastal aquifer contaminated with multiple chlorinated aromatic hydrocarbons. Field-derived microcosms, established with groundwater from the source zone and amended with a mixture of lower chlorinated b...

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Autores: Trueba-Santiso, Alba|||0000-0001-9730-7321, Palau, Jordi|||0000-0001-9492-7306, Soder-Walz, Jesica M.|||0000-0002-5253-9898, Vicent i Huguet, Teresa|||0000-0002-6547-7358, Marco Urrea, Ernest|||0000-0002-8033-6553
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:250753
Acceso en línea:https://ddd.uab.cat/record/250753
https://dx.doi.org/urn:doi:10.1016/j.jes.2021.12.025
Access Level:acceso abierto
Palabra clave:Groundwater
Isotope fractionation
Chlorobenzenes
Aerobic biodegradation
Anaerobic reductive dehalogenation
Natural attenuation
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spelling Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionationTrueba-Santiso, Alba|||0000-0001-9730-7321Palau, Jordi|||0000-0001-9492-7306Soder-Walz, Jesica M.|||0000-0002-5253-9898Vicent i Huguet, Teresa|||0000-0002-6547-7358Marco Urrea, Ernest|||0000-0002-8033-6553GroundwaterIsotope fractionationChlorobenzenesAerobic biodegradationAnaerobic reductive dehalogenationNatural attenuationBiodegradation of lower chlorinated benzenes (tri-, di- and monochlorobenzene) was assessed at a coastal aquifer contaminated with multiple chlorinated aromatic hydrocarbons. Field-derived microcosms, established with groundwater from the source zone and amended with a mixture of lower chlorinated benzenes, evidenced biodegradation of monochlorobenzene (MCB) and 1,4-dichlorobenzene (1,4-DCB) in aerobic microcosms, whereas the addition of lactate in anaerobic microcosms did not enhance anaerobic reductive dechlorination. Aerobic microcosms established with groundwater from the plume consumed several doses of MCB and concomitantly degraded the three isomers of dichlorobenzene with no observable inhibitory effect. In the light of these results, we assessed the applicability of compound stable isotope analysis to monitor a potential aerobic remediation treatment of MCB and 1,4-DCB in this site. The carbon isotopic fractionation factors (ε) obtained from field-derived microcosms were -0.7 ± 0.1 ‰ and -1.0 ± 0.2 ‰ for MCB and 1,4-DCB, respectively. For 1,4-DCB, the carbon isotope fractionation during aerobic biodegradation was reported for the first time. The weak carbon isotope fractionation values for the aerobic pathway would only allow tracing of in situ degradation in aquifer parts with high extent of biodegradation. However, based on the carbon isotope effects measured in this and previous studies, relatively high carbon isotope shifts (i.e., ∆δ13C. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/250753https://dx.doi.org/urn:doi:10.1016/j.jes.2021.12.025reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 CGL2017-82331-RAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1733open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2507532026-06-06T12:50:31Z
dc.title.none.fl_str_mv Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
title Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
spellingShingle Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
Trueba-Santiso, Alba|||0000-0001-9730-7321
Groundwater
Isotope fractionation
Chlorobenzenes
Aerobic biodegradation
Anaerobic reductive dehalogenation
Natural attenuation
title_short Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
title_full Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
title_fullStr Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
title_full_unstemmed Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
title_sort Assessment of aerobic biodegradation of lower-chlorinated benzenes in contaminated groundwater using field-derived microcosms and compound-specific carbon isotope fractionation
dc.creator.none.fl_str_mv Trueba-Santiso, Alba|||0000-0001-9730-7321
Palau, Jordi|||0000-0001-9492-7306
Soder-Walz, Jesica M.|||0000-0002-5253-9898
Vicent i Huguet, Teresa|||0000-0002-6547-7358
Marco Urrea, Ernest|||0000-0002-8033-6553
author Trueba-Santiso, Alba|||0000-0001-9730-7321
author_facet Trueba-Santiso, Alba|||0000-0001-9730-7321
Palau, Jordi|||0000-0001-9492-7306
Soder-Walz, Jesica M.|||0000-0002-5253-9898
Vicent i Huguet, Teresa|||0000-0002-6547-7358
Marco Urrea, Ernest|||0000-0002-8033-6553
author_role author
author2 Palau, Jordi|||0000-0001-9492-7306
Soder-Walz, Jesica M.|||0000-0002-5253-9898
Vicent i Huguet, Teresa|||0000-0002-6547-7358
Marco Urrea, Ernest|||0000-0002-8033-6553
author2_role author
author
author
author
dc.subject.none.fl_str_mv Groundwater
Isotope fractionation
Chlorobenzenes
Aerobic biodegradation
Anaerobic reductive dehalogenation
Natural attenuation
topic Groundwater
Isotope fractionation
Chlorobenzenes
Aerobic biodegradation
Anaerobic reductive dehalogenation
Natural attenuation
description Biodegradation of lower chlorinated benzenes (tri-, di- and monochlorobenzene) was assessed at a coastal aquifer contaminated with multiple chlorinated aromatic hydrocarbons. Field-derived microcosms, established with groundwater from the source zone and amended with a mixture of lower chlorinated benzenes, evidenced biodegradation of monochlorobenzene (MCB) and 1,4-dichlorobenzene (1,4-DCB) in aerobic microcosms, whereas the addition of lactate in anaerobic microcosms did not enhance anaerobic reductive dechlorination. Aerobic microcosms established with groundwater from the plume consumed several doses of MCB and concomitantly degraded the three isomers of dichlorobenzene with no observable inhibitory effect. In the light of these results, we assessed the applicability of compound stable isotope analysis to monitor a potential aerobic remediation treatment of MCB and 1,4-DCB in this site. The carbon isotopic fractionation factors (ε) obtained from field-derived microcosms were -0.7 ± 0.1 ‰ and -1.0 ± 0.2 ‰ for MCB and 1,4-DCB, respectively. For 1,4-DCB, the carbon isotope fractionation during aerobic biodegradation was reported for the first time. The weak carbon isotope fractionation values for the aerobic pathway would only allow tracing of in situ degradation in aquifer parts with high extent of biodegradation. However, based on the carbon isotope effects measured in this and previous studies, relatively high carbon isotope shifts (i.e., ∆δ13C.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/250753
https://dx.doi.org/urn:doi:10.1016/j.jes.2021.12.025
url https://ddd.uab.cat/record/250753
https://dx.doi.org/urn:doi:10.1016/j.jes.2021.12.025
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 CGL2017-82331-R
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1733
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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repository.mail.fl_str_mv
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