Effects of organic matter addition on chronically hydrocarbon‐contaminated soil

Autores
Medina, Rocío; David Gara, Pedro Maximiliano; Rosso, Janina Alejandra; Del Panno, María Teresa
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Soil is the recipient of organic pollutants as a consequence of anthropogenic activities. Hydrocarbons are contaminants that pose a risk to human and environmental health. Bioremediation of aging contaminated soils is a challenge due to the low biodegradability of contaminants as a result of their interaction with the soil matrix. The aim of this work was to evaluate the effect of both composting and the addition of mature compost on a soil chronically contaminated with hydrocarbons, focusing mainly on the recovery of soil functions and transformations of the soil matrix as well as microbial community shifts. The initial pollution level was 214 ppm of polycyclic aromatic hydrocarbons (PAHs) and 2500 ppm of aliphatic hydrocarbons (AHs). Composting and compost addition produced changes on soil matrix that promoted the release of PAHs (5.7 and 15 % respectively) but not the net PAH elimination. Interestingly, composting stimulated AHs elimination (about 24 %). The lack of PAHs elimination could be attributed to the insufficient PAHs content to stimulate the microbial degrading capacity, and the preferential consumption of easily absorbed C sources by the bacterial community. Despite the low PAH catabolic potential of the aging soil, metabolic shift was driven by the addition of organic matter, which could be monitored by the ratio of Proteobacteria to Actinobacteria combined with E4/E6 ratio. Regarding the quality of the soil, the nutrients provided by the exogenous organic matter contributed to the recovery of the global functions and species diversity of the soil along with the reduction of phytotoxicity.
Centro de Investigación y Desarrollo en Fermentaciones Industriales
Centro de Investigaciones en Fitopatología
Centro de Investigaciones Ópticas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Física
Química
Ciencias Exactas
Bioremediation
Chronically hydrocarbon-polluted soil
Composting
Microbial community
Phytotoxicity assays
Stimulation with compost
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/138092
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/138092
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Effects of organic matter addition on chronically hydrocarbon‐contaminated soilMedina, RocíoDavid Gara, Pedro MaximilianoRosso, Janina AlejandraDel Panno, María TeresaFísicaQuímicaCiencias ExactasBioremediationChronically hydrocarbon-polluted soilCompostingMicrobial communityPhytotoxicity assaysStimulation with compostSoil is the recipient of organic pollutants as a consequence of anthropogenic activities. Hydrocarbons are contaminants that pose a risk to human and environmental health. Bioremediation of aging contaminated soils is a challenge due to the low biodegradability of contaminants as a result of their interaction with the soil matrix. The aim of this work was to evaluate the effect of both composting and the addition of mature compost on a soil chronically contaminated with hydrocarbons, focusing mainly on the recovery of soil functions and transformations of the soil matrix as well as microbial community shifts. The initial pollution level was 214 ppm of polycyclic aromatic hydrocarbons (PAHs) and 2500 ppm of aliphatic hydrocarbons (AHs). Composting and compost addition produced changes on soil matrix that promoted the release of PAHs (5.7 and 15 % respectively) but not the net PAH elimination. Interestingly, composting stimulated AHs elimination (about 24 %). The lack of PAHs elimination could be attributed to the insufficient PAHs content to stimulate the microbial degrading capacity, and the preferential consumption of easily absorbed C sources by the bacterial community. Despite the low PAH catabolic potential of the aging soil, metabolic shift was driven by the addition of organic matter, which could be monitored by the ratio of Proteobacteria to Actinobacteria combined with E4/E6 ratio. Regarding the quality of the soil, the nutrients provided by the exogenous organic matter contributed to the recovery of the global functions and species diversity of the soil along with the reduction of phytotoxicity.Centro de Investigación y Desarrollo en Fermentaciones IndustrialesCentro de Investigaciones en FitopatologíaCentro de Investigaciones ÓpticasInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2021-02-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf145-163http://sedici.unlp.edu.ar/handle/10915/138092enginfo:eu-repo/semantics/altIdentifier/issn/1572-9729info:eu-repo/semantics/altIdentifier/issn/0923-9820info:eu-repo/semantics/altIdentifier/doi/10.1007/s10532-021-09929-yinfo:eu-repo/semantics/altIdentifier/pmid/33586077info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:07Zoai:sedici.unlp.edu.ar:10915/138092Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:07.401SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
title Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
spellingShingle Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
Medina, Rocío
Física
Química
Ciencias Exactas
Bioremediation
Chronically hydrocarbon-polluted soil
Composting
Microbial community
Phytotoxicity assays
Stimulation with compost
title_short Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
title_full Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
title_fullStr Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
title_full_unstemmed Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
title_sort Effects of organic matter addition on chronically hydrocarbon‐contaminated soil
dc.creator.none.fl_str_mv Medina, Rocío
David Gara, Pedro Maximiliano
Rosso, Janina Alejandra
Del Panno, María Teresa
author Medina, Rocío
author_facet Medina, Rocío
David Gara, Pedro Maximiliano
Rosso, Janina Alejandra
Del Panno, María Teresa
author_role author
author2 David Gara, Pedro Maximiliano
Rosso, Janina Alejandra
Del Panno, María Teresa
author2_role author
author
author
dc.subject.none.fl_str_mv Física
Química
Ciencias Exactas
Bioremediation
Chronically hydrocarbon-polluted soil
Composting
Microbial community
Phytotoxicity assays
Stimulation with compost
topic Física
Química
Ciencias Exactas
Bioremediation
Chronically hydrocarbon-polluted soil
Composting
Microbial community
Phytotoxicity assays
Stimulation with compost
dc.description.none.fl_txt_mv Soil is the recipient of organic pollutants as a consequence of anthropogenic activities. Hydrocarbons are contaminants that pose a risk to human and environmental health. Bioremediation of aging contaminated soils is a challenge due to the low biodegradability of contaminants as a result of their interaction with the soil matrix. The aim of this work was to evaluate the effect of both composting and the addition of mature compost on a soil chronically contaminated with hydrocarbons, focusing mainly on the recovery of soil functions and transformations of the soil matrix as well as microbial community shifts. The initial pollution level was 214 ppm of polycyclic aromatic hydrocarbons (PAHs) and 2500 ppm of aliphatic hydrocarbons (AHs). Composting and compost addition produced changes on soil matrix that promoted the release of PAHs (5.7 and 15 % respectively) but not the net PAH elimination. Interestingly, composting stimulated AHs elimination (about 24 %). The lack of PAHs elimination could be attributed to the insufficient PAHs content to stimulate the microbial degrading capacity, and the preferential consumption of easily absorbed C sources by the bacterial community. Despite the low PAH catabolic potential of the aging soil, metabolic shift was driven by the addition of organic matter, which could be monitored by the ratio of Proteobacteria to Actinobacteria combined with E4/E6 ratio. Regarding the quality of the soil, the nutrients provided by the exogenous organic matter contributed to the recovery of the global functions and species diversity of the soil along with the reduction of phytotoxicity.
Centro de Investigación y Desarrollo en Fermentaciones Industriales
Centro de Investigaciones en Fitopatología
Centro de Investigaciones Ópticas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Soil is the recipient of organic pollutants as a consequence of anthropogenic activities. Hydrocarbons are contaminants that pose a risk to human and environmental health. Bioremediation of aging contaminated soils is a challenge due to the low biodegradability of contaminants as a result of their interaction with the soil matrix. The aim of this work was to evaluate the effect of both composting and the addition of mature compost on a soil chronically contaminated with hydrocarbons, focusing mainly on the recovery of soil functions and transformations of the soil matrix as well as microbial community shifts. The initial pollution level was 214 ppm of polycyclic aromatic hydrocarbons (PAHs) and 2500 ppm of aliphatic hydrocarbons (AHs). Composting and compost addition produced changes on soil matrix that promoted the release of PAHs (5.7 and 15 % respectively) but not the net PAH elimination. Interestingly, composting stimulated AHs elimination (about 24 %). The lack of PAHs elimination could be attributed to the insufficient PAHs content to stimulate the microbial degrading capacity, and the preferential consumption of easily absorbed C sources by the bacterial community. Despite the low PAH catabolic potential of the aging soil, metabolic shift was driven by the addition of organic matter, which could be monitored by the ratio of Proteobacteria to Actinobacteria combined with E4/E6 ratio. Regarding the quality of the soil, the nutrients provided by the exogenous organic matter contributed to the recovery of the global functions and species diversity of the soil along with the reduction of phytotoxicity.
publishDate 2021
dc.date.none.fl_str_mv 2021-02-13
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/138092
url http://sedici.unlp.edu.ar/handle/10915/138092
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1572-9729
info:eu-repo/semantics/altIdentifier/issn/0923-9820
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10532-021-09929-y
info:eu-repo/semantics/altIdentifier/pmid/33586077
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
145-163
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instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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