Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil

In this manuscript we studied in the laboratory the bioremediation effects of a biostimulant obtained from okara by enzymatic hydrolysis processes in a soil polluted with used motor-car oil at a rate of 1 % (w/w) over an 89-day period. The biostimulant was added to the soil 6 times during the incuba...

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Authors: Paneque Macías, Patricia Isabel, Caballero, Pablo, Parrado, Juan, Gómez Parrales, Isidoro Ángel, Tejada, Manuel
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2020
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/155039
Online Access:https://hdl.handle.net/11441/155039
https://doi.org/10.1016/j.jhazmat.2019.121820
Access Level:Open access
Keyword:okara biostimulant
used motor-car oil
polycyclic aromatic hydrocarbons
total heavy metals
soil dehydrogenase activity
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spelling Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oilPaneque Macías, Patricia IsabelCaballero, PabloParrado, JuanGómez Parrales, Isidoro ÁngelTejada, Manuelokara biostimulantused motor-car oilpolycyclic aromatic hydrocarbonstotal heavy metalssoil dehydrogenase activityIn this manuscript we studied in the laboratory the bioremediation effects of a biostimulant obtained from okara by enzymatic hydrolysis processes in a soil polluted with used motor-car oil at a rate of 1 % (w/w) over an 89-day period. The biostimulant was added to the soil 6 times during the incubation period at a rate of 2 %. Dehydrogenase activity and the evolution of polycyclic aromatic hydrocarbons (PAHs) and pseudo total heavy metals in soil were studied. The successive applications of the biostimulant to the polluted soil gradually increased PAHs degradation during the experimental period. Thus, at the end of the experiment, the application of the biostimulant decreased the concentration of naphthalene in soil by 74 %, while PAHs with 3, 4, 5 and 6 aromatic rings had been reduced by around 58 %, 44 %, 30 % and 23 %, respectively. This degradation is possibly due to the high number of low molecular weight peptides (<300 Da) in the biostimulant which are readily available for PAHs-tolerant soil microorganisms that accelerate the degradation of the said toxins. The concentration of heavy metals in the oil used was not very high and consequently the dehydrogenase activity was not negatively affected.Cristalografía, Mineralogía y Química Agrícola2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/155039https://doi.org/10.1016/j.jhazmat.2019.121820reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésJournal of Hazardous Materials, 389, 121820.info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1550392026-06-17T12:51:07Z
dc.title.none.fl_str_mv Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
title Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
spellingShingle Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
Paneque Macías, Patricia Isabel
okara biostimulant
used motor-car oil
polycyclic aromatic hydrocarbons
total heavy metals
soil dehydrogenase activity
title_short Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
title_full Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
title_fullStr Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
title_full_unstemmed Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
title_sort Use of a biostimulant obtained from okara in the bioremediation of a soil polluted by used motor car oil
dc.creator.none.fl_str_mv Paneque Macías, Patricia Isabel
Caballero, Pablo
Parrado, Juan
Gómez Parrales, Isidoro Ángel
Tejada, Manuel
author Paneque Macías, Patricia Isabel
author_facet Paneque Macías, Patricia Isabel
Caballero, Pablo
Parrado, Juan
Gómez Parrales, Isidoro Ángel
Tejada, Manuel
author_role author
author2 Caballero, Pablo
Parrado, Juan
Gómez Parrales, Isidoro Ángel
Tejada, Manuel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Cristalografía, Mineralogía y Química Agrícola
dc.subject.none.fl_str_mv okara biostimulant
used motor-car oil
polycyclic aromatic hydrocarbons
total heavy metals
soil dehydrogenase activity
topic okara biostimulant
used motor-car oil
polycyclic aromatic hydrocarbons
total heavy metals
soil dehydrogenase activity
description In this manuscript we studied in the laboratory the bioremediation effects of a biostimulant obtained from okara by enzymatic hydrolysis processes in a soil polluted with used motor-car oil at a rate of 1 % (w/w) over an 89-day period. The biostimulant was added to the soil 6 times during the incubation period at a rate of 2 %. Dehydrogenase activity and the evolution of polycyclic aromatic hydrocarbons (PAHs) and pseudo total heavy metals in soil were studied. The successive applications of the biostimulant to the polluted soil gradually increased PAHs degradation during the experimental period. Thus, at the end of the experiment, the application of the biostimulant decreased the concentration of naphthalene in soil by 74 %, while PAHs with 3, 4, 5 and 6 aromatic rings had been reduced by around 58 %, 44 %, 30 % and 23 %, respectively. This degradation is possibly due to the high number of low molecular weight peptides (<300 Da) in the biostimulant which are readily available for PAHs-tolerant soil microorganisms that accelerate the degradation of the said toxins. The concentration of heavy metals in the oil used was not very high and consequently the dehydrogenase activity was not negatively affected.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/155039
https://doi.org/10.1016/j.jhazmat.2019.121820
url https://hdl.handle.net/11441/155039
https://doi.org/10.1016/j.jhazmat.2019.121820
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Hazardous Materials, 389, 121820.
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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