Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature
Real marine sediments dredged from Capo Granitola (CG) (Sicily, Italy) artificially contaminated were treated via an electrokinetic (EK) process. Mercury (Hg) and phenanthrene (PHE) or a mixture of PAHs (to simulate a more complex site) were selected as models of heavy metals and organic hazardous c...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
|
| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/ijce/1707820 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849706542008369152 |
|---|---|
| author | Federica Proietto Claudia Prestigiacomo Fabio D’Agostino Maria Bonsignore Mario Sprovieri Alessandro Galia Onofrio Scialdone |
| author_facet | Federica Proietto Claudia Prestigiacomo Fabio D’Agostino Maria Bonsignore Mario Sprovieri Alessandro Galia Onofrio Scialdone |
| author_sort | Federica Proietto |
| collection | DOAJ |
| description | Real marine sediments dredged from Capo Granitola (CG) (Sicily, Italy) artificially contaminated were treated via an electrokinetic (EK) process. Mercury (Hg) and phenanthrene (PHE) or a mixture of PAHs (to simulate a more complex site) were selected as models of heavy metals and organic hazardous compounds, respectively. The aim of this work was to systematically investigate the effect of different enhancing agents on the removal of both classes of contaminants. Marine sediments were treated using a three-compartment cell under 1 V cm−1 for 10 days. The usage of different enhancing agents, including deionized water, trisodium N-(1-carboxylatoethyl)-iminodiacetate hydrate (MGDA) as chelating agents, Tween 80 surfactant and hydrogen peroxide, was investigated, to prompt the simultaneous removal of both classes of contaminants. The optimum option for the simultaneous removal was observed using a MGDA and Tween 80 solution as anolyte and MGDA solution as catholyte. These adopted conditions allow to reach the highest removal of Hg up to 22.5% and of PHE up to 62% in the case of the sediments contaminated with Hg and PHE and a total Hg removal of 13% coupled with a total PAHs removal of 45% in the case of sediments spiked with Hg and a mixture of five PAHs. It was observed that the nature of the enhancing agents used as electrolytes and their combination strongly affect the remediation treatment in terms of both distribution into the sediments and the total contaminants’ removal. |
| format | Article |
| id | doaj-art-a0b61e83637845ce8a5e8941aa7a7af5 |
| institution | DOAJ |
| issn | 1687-8078 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-a0b61e83637845ce8a5e8941aa7a7af52025-08-20T03:16:10ZengWileyInternational Journal of Chemical Engineering1687-80782025-01-01202510.1155/ijce/1707820Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ NatureFederica Proietto0Claudia Prestigiacomo1Fabio D’Agostino2Maria Bonsignore3Mario Sprovieri4Alessandro Galia5Onofrio Scialdone6Engineering DepartmentEngineering DepartmentInstitute of Anthropic Impacts and Sustainability in the Marine Environment (IAS)Institute of Anthropic Impacts and Sustainability in the Marine Environment (IAS)Institute of Marine Sciences (CNR-ISMAR)Engineering DepartmentEngineering DepartmentReal marine sediments dredged from Capo Granitola (CG) (Sicily, Italy) artificially contaminated were treated via an electrokinetic (EK) process. Mercury (Hg) and phenanthrene (PHE) or a mixture of PAHs (to simulate a more complex site) were selected as models of heavy metals and organic hazardous compounds, respectively. The aim of this work was to systematically investigate the effect of different enhancing agents on the removal of both classes of contaminants. Marine sediments were treated using a three-compartment cell under 1 V cm−1 for 10 days. The usage of different enhancing agents, including deionized water, trisodium N-(1-carboxylatoethyl)-iminodiacetate hydrate (MGDA) as chelating agents, Tween 80 surfactant and hydrogen peroxide, was investigated, to prompt the simultaneous removal of both classes of contaminants. The optimum option for the simultaneous removal was observed using a MGDA and Tween 80 solution as anolyte and MGDA solution as catholyte. These adopted conditions allow to reach the highest removal of Hg up to 22.5% and of PHE up to 62% in the case of the sediments contaminated with Hg and PHE and a total Hg removal of 13% coupled with a total PAHs removal of 45% in the case of sediments spiked with Hg and a mixture of five PAHs. It was observed that the nature of the enhancing agents used as electrolytes and their combination strongly affect the remediation treatment in terms of both distribution into the sediments and the total contaminants’ removal.http://dx.doi.org/10.1155/ijce/1707820 |
| spellingShingle | Federica Proietto Claudia Prestigiacomo Fabio D’Agostino Maria Bonsignore Mario Sprovieri Alessandro Galia Onofrio Scialdone Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature International Journal of Chemical Engineering |
| title | Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature |
| title_full | Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature |
| title_fullStr | Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature |
| title_full_unstemmed | Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature |
| title_short | Electrochemical Remediation of Marine Sediments Spiked With Hg and PAHs: Comparison of the Enhancing Agents’ Nature |
| title_sort | electrochemical remediation of marine sediments spiked with hg and pahs comparison of the enhancing agents nature |
| url | http://dx.doi.org/10.1155/ijce/1707820 |
| work_keys_str_mv | AT federicaproietto electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT claudiaprestigiacomo electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT fabiodagostino electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT mariabonsignore electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT mariosprovieri electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT alessandrogalia electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature AT onofrioscialdone electrochemicalremediationofmarinesedimentsspikedwithhgandpahscomparisonoftheenhancingagentsnature |