Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons
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2022
Authors
Silva, Karyn NOHenrique, João MM
Đolić, Maja B.
Martínez-Huitle, Carlos A
Dos Santos, Elisama V
Moreira, Francisca C
Vilar, Vítor JP
Article (Published version)
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Soil washing is a well-known technology for the remediation of soils polluted by organic contaminants, including polycyclic aromatic hydrocarbons (PAHs). This study aimed to go further by integrating soil washing and permeable reactive barriers (PRBs) made of cork granules to remove PAHs from the soil. While PAHs may be transferred from the soil to the washing solution in the soil washing step, the cork PRB may provide the removal of PAHs from the washing solution, ultimately leading to the reuse of this solution. RESULTS: The integrated approach was tested by means of packed bed column experiments in the absence and presence of cork PRBs. Two PAHs were under focus: fluorene (FLU) and phenanthrene (PHE). In soil with 0.5 mmol L−1 kgsoil−1 of FLU and PHE, the soil washing technique employing thermally treated cork granules and a solution of 70%/30% water/acetonitrile (v/v) flowing at 2.2 mL min−1 promoted the transfer of ~58% of PAHs from the soil to the washing solution, while the cork... PRB retained ~98% of the PAHs from the washing solution. The acetonitrile content of the water/acetonitrile washing solutions contributed to the soil washing since it was responsible for PAH desorption and elution, however it was unfavorable for PAH sorption onto the cork as acetonitrile competed with PAHs for cork sorption sites. CONCLUSION: Cork PRBs were able to retain PAHs from soil washing solutions and provide final solutions free of PAHs, demonstrating the viability of integrating solvent-aided soil washing with cork PRBs. © 2022 Society of Chemical Industry (SCI).
Keywords:
environmental remediation / natural sorbents / organic compounds / permeable reactive barriers / solvent extractionSource:
Journal of Chemical Technology and Biotechnology, 2022Publisher:
- John Wiley and Sons Ltd
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
DOI: 10.1002/jctb.7203
ISSN: 0268-2575
WoS: 00085151110000
Scopus: 2-s2.0-85135776468
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Silva, Karyn NO AU - Henrique, João MM AU - Đolić, Maja B. AU - Martínez-Huitle, Carlos A AU - Dos Santos, Elisama V AU - Moreira, Francisca C AU - Vilar, Vítor JP PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5196 AB - Soil washing is a well-known technology for the remediation of soils polluted by organic contaminants, including polycyclic aromatic hydrocarbons (PAHs). This study aimed to go further by integrating soil washing and permeable reactive barriers (PRBs) made of cork granules to remove PAHs from the soil. While PAHs may be transferred from the soil to the washing solution in the soil washing step, the cork PRB may provide the removal of PAHs from the washing solution, ultimately leading to the reuse of this solution. RESULTS: The integrated approach was tested by means of packed bed column experiments in the absence and presence of cork PRBs. Two PAHs were under focus: fluorene (FLU) and phenanthrene (PHE). In soil with 0.5 mmol L−1 kgsoil−1 of FLU and PHE, the soil washing technique employing thermally treated cork granules and a solution of 70%/30% water/acetonitrile (v/v) flowing at 2.2 mL min−1 promoted the transfer of ~58% of PAHs from the soil to the washing solution, while the cork PRB retained ~98% of the PAHs from the washing solution. The acetonitrile content of the water/acetonitrile washing solutions contributed to the soil washing since it was responsible for PAH desorption and elution, however it was unfavorable for PAH sorption onto the cork as acetonitrile competed with PAHs for cork sorption sites. CONCLUSION: Cork PRBs were able to retain PAHs from soil washing solutions and provide final solutions free of PAHs, demonstrating the viability of integrating solvent-aided soil washing with cork PRBs. © 2022 Society of Chemical Industry (SCI). PB - John Wiley and Sons Ltd T2 - Journal of Chemical Technology and Biotechnology T1 - Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons DO - 10.1002/jctb.7203 ER -
@article{ author = "Silva, Karyn NO and Henrique, João MM and Đolić, Maja B. and Martínez-Huitle, Carlos A and Dos Santos, Elisama V and Moreira, Francisca C and Vilar, Vítor JP", year = "2022", abstract = "Soil washing is a well-known technology for the remediation of soils polluted by organic contaminants, including polycyclic aromatic hydrocarbons (PAHs). This study aimed to go further by integrating soil washing and permeable reactive barriers (PRBs) made of cork granules to remove PAHs from the soil. While PAHs may be transferred from the soil to the washing solution in the soil washing step, the cork PRB may provide the removal of PAHs from the washing solution, ultimately leading to the reuse of this solution. RESULTS: The integrated approach was tested by means of packed bed column experiments in the absence and presence of cork PRBs. Two PAHs were under focus: fluorene (FLU) and phenanthrene (PHE). In soil with 0.5 mmol L−1 kgsoil−1 of FLU and PHE, the soil washing technique employing thermally treated cork granules and a solution of 70%/30% water/acetonitrile (v/v) flowing at 2.2 mL min−1 promoted the transfer of ~58% of PAHs from the soil to the washing solution, while the cork PRB retained ~98% of the PAHs from the washing solution. The acetonitrile content of the water/acetonitrile washing solutions contributed to the soil washing since it was responsible for PAH desorption and elution, however it was unfavorable for PAH sorption onto the cork as acetonitrile competed with PAHs for cork sorption sites. CONCLUSION: Cork PRBs were able to retain PAHs from soil washing solutions and provide final solutions free of PAHs, demonstrating the viability of integrating solvent-aided soil washing with cork PRBs. © 2022 Society of Chemical Industry (SCI).", publisher = "John Wiley and Sons Ltd", journal = "Journal of Chemical Technology and Biotechnology", title = "Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons", doi = "10.1002/jctb.7203" }
Silva, K. N., Henrique, J. M., Đolić, M. B., Martínez-Huitle, C. A., Dos Santos, E. V., Moreira, F. C.,& Vilar, V. J.. (2022). Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons. in Journal of Chemical Technology and Biotechnology John Wiley and Sons Ltd.. https://doi.org/10.1002/jctb.7203
Silva KN, Henrique JM, Đolić MB, Martínez-Huitle CA, Dos Santos EV, Moreira FC, Vilar VJ. Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons. in Journal of Chemical Technology and Biotechnology. 2022;. doi:10.1002/jctb.7203 .
Silva, Karyn NO, Henrique, João MM, Đolić, Maja B., Martínez-Huitle, Carlos A, Dos Santos, Elisama V, Moreira, Francisca C, Vilar, Vítor JP, "Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons" in Journal of Chemical Technology and Biotechnology (2022), https://doi.org/10.1002/jctb.7203 . .