How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels
The increasing use of biofuels as additives to gasoline may have potential indirect effects on the efficiency of soil remediation technologies used to remediate fuel spills. This problem has not yet been studied. Sorption is one of the controlling processes in soil remediation. The effect of biofue...
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| Format: | Article |
| Language: | English |
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Federation of Eurasian Soil Science Societies
2015-04-01
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| Series: | Eurasian Journal of Soil Science |
| Subjects: | |
| Online Access: | http://dergipark.ulakbim.gov.tr/ejss/article/view/5000107295/5000100215 |
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| author | Maria Manuela Carvalho Maria Cristina Vila Fernanda Rohden Mónica Rosas Joana Dias Teresa Oliva-Teles Anthony Danko Cristina Delerue-Matos António Fiuza |
| author_facet | Maria Manuela Carvalho Maria Cristina Vila Fernanda Rohden Mónica Rosas Joana Dias Teresa Oliva-Teles Anthony Danko Cristina Delerue-Matos António Fiuza |
| author_sort | Maria Manuela Carvalho |
| collection | DOAJ |
| description | The increasing use of biofuels as additives to gasoline may have potential indirect effects on the efficiency of soil remediation technologies used to remediate fuel spills. This problem has not yet been studied. Sorption is one of the controlling processes in soil remediation. The effect of biofuels on sorption and phase distribution of contaminants by different natural soils has not been reported on the literature. The present work examines how two different biofuels, n-butanol and soybean biodiesel, affect benzene sorption in two naturally occurring subsoils (granite and limestone). Sorption isotherms were made with soils deliberately contaminated with benzene, benzene and n-butanol and benzene plus biodiesel, using lab-scale reactors operated at constant temperature, each one loaded with 700 grams of wet sterilized soil. For each type of soil, five isotherms were determined corresponding to different contamination profiles. It was concluded that sorption was strongly affected by the nature of the soil. The partition of benzene into the different phases of the soil was significantly affected by the presence of biofuels. The experimental data was fitted to conventional sorption models, Freundlich, Langmuir and a second order polynomial. Model parameters were determined using a non-linear least squares (NLLS) optimization algorithm and showed a good agreement between experimental and fitted data. |
| first_indexed | 2024-03-12T10:05:56Z |
| format | Article |
| id | doaj.art-f98f5cd65bf3414b9d260bddeafffa29 |
| institution | Directory Open Access Journal |
| issn | 2147-4249 |
| language | English |
| last_indexed | 2024-03-12T10:05:56Z |
| publishDate | 2015-04-01 |
| publisher | Federation of Eurasian Soil Science Societies |
| record_format | Article |
| series | Eurasian Journal of Soil Science |
| spelling | doaj.art-f98f5cd65bf3414b9d260bddeafffa292023-09-02T11:20:59ZengFederation of Eurasian Soil Science SocietiesEurasian Journal of Soil Science2147-42492015-04-0142111117http://dx.doi.org/10.18393/ejss.42200How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuelsMaria Manuela Carvalho0Maria Cristina Vila1Fernanda Rohden2Mónica Rosas3Joana Dias4Teresa Oliva-Teles5Anthony Danko6Cristina Delerue-Matos7António Fiuza8CIGAR, Faculty of Engineering, University of Porto, PortugalCIGAR, Faculty of Engineering, University of Porto, PortugalCIGAR, Faculty of Engineering, University of Porto, PortugalCIGAR, Faculty of Engineering, University of Porto, PortugalLEPABE, Faculty of Engineering, University of Porto, PortugalREQUIMTE, Institute of Engineering of Porto, Polytechnic Institute of Porto, PortugalCIGAR, Faculty of Engineering, University of Porto, PortugalREQUIMTE, Institute of Engineering of Porto, Polytechnic Institute of Porto, PortugalCIGAR, Faculty of Engineering, University of Porto, PortugalThe increasing use of biofuels as additives to gasoline may have potential indirect effects on the efficiency of soil remediation technologies used to remediate fuel spills. This problem has not yet been studied. Sorption is one of the controlling processes in soil remediation. The effect of biofuels on sorption and phase distribution of contaminants by different natural soils has not been reported on the literature. The present work examines how two different biofuels, n-butanol and soybean biodiesel, affect benzene sorption in two naturally occurring subsoils (granite and limestone). Sorption isotherms were made with soils deliberately contaminated with benzene, benzene and n-butanol and benzene plus biodiesel, using lab-scale reactors operated at constant temperature, each one loaded with 700 grams of wet sterilized soil. For each type of soil, five isotherms were determined corresponding to different contamination profiles. It was concluded that sorption was strongly affected by the nature of the soil. The partition of benzene into the different phases of the soil was significantly affected by the presence of biofuels. The experimental data was fitted to conventional sorption models, Freundlich, Langmuir and a second order polynomial. Model parameters were determined using a non-linear least squares (NLLS) optimization algorithm and showed a good agreement between experimental and fitted data.http://dergipark.ulakbim.gov.tr/ejss/article/view/5000107295/5000100215Sorptionsoilsbenzenebiofuels |
| spellingShingle | Maria Manuela Carvalho Maria Cristina Vila Fernanda Rohden Mónica Rosas Joana Dias Teresa Oliva-Teles Anthony Danko Cristina Delerue-Matos António Fiuza How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels Eurasian Journal of Soil Science Sorption soils benzene biofuels |
| title | How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| title_full | How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| title_fullStr | How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| title_full_unstemmed | How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| title_short | How the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| title_sort | how the sorption of benzene in soils contaminated with aromatic hydrocarbons is affected by the presence of biofuels |
| topic | Sorption soils benzene biofuels |
| url | http://dergipark.ulakbim.gov.tr/ejss/article/view/5000107295/5000100215 |
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