Application of a crustacean bioassay to evaluate a multi-contaminated (metal, PAH, PCB) harbor sediment before and after electrokinetic remediation using eco-friendly enhancing agents

Autor: Florence Portet-Koltalo, Céline Boulangé-Lecomte, C. Frederick, Nathalie Giusti-Petrucciani, Aurélie Duflot, Stéphanie Olivier, Joëlle Forget-Leray, Yue Tian, Ahmed Benamar
Přispěvatelé: Laboratoire Ondes et Milieux Complexes (LOMC), Centre National de la Recherche Scientifique (CNRS)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU), Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Stress Environnementaux et BIOsurveillance des milieux aquatiques (SEBIO), Institut National de l'Environnement Industriel et des Risques (INERIS)-Université de Reims Champagne-Ardenne (URCA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Geologic Sediments
Environmental Engineering
Environmental remediation
[SDE.MCG]Environmental Sciences/Global Changes
02 engineering and technology
010501 environmental sciences
01 natural sciences
Redox
Copepoda
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology
environment/Ecosystems
Metals
Heavy
[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry
Molecular Biology/Genomics [q-bio.GN]
Toxicity Tests
Acute
Animals
Environmental Chemistry
Bioassay
Organic matter
Polycyclic Aromatic Hydrocarbons
Waste Management and Disposal
Environmental Restoration and Remediation
0105 earth and related environmental sciences
chemistry.chemical_classification
[SDV.EE.SANT]Life Sciences [q-bio]/Ecology
environment/Health
Electrokinetic remediation
Sediment
[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry
Molecular Biology/Molecular biology
Contamination
021001 nanoscience & nanotechnology
Polychlorinated Biphenyls
Pollution
6. Clean water
Acute toxicity
chemistry
13. Climate action
Environmental chemistry
Biological Assay
Environmental Pollutants
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
0210 nano-technology
Zdroj: Science of the Total Environment
Science of the Total Environment, Elsevier, 2017, 607-608, pp.944-953. ⟨10.1016/j.scitotenv.2017.07.094⟩
ISSN: 0048-9697
1879-1026
DOI: 10.1016/j.scitotenv.2017.07.094⟩
Popis: International audience; Electrokinetic (EK) remediation can be a suitable technology for treating contaminated dredged harbor sediment, stored on terrestrial disposal sites. Citric acid (CA) and biosurfactants (rhamnolipids and saponin) were chosen as enhancing agents for simultaneous metal (Cd, Cr, Cu, Pb, Zn) and PAH/PCB removal by EK because of their potential low toxicity with a view to site restoration. Three EK runs were performed using a periodic voltage (1 V cm− 1) and various concentrations of agents. The best combination of CA (0.2 mol L− 1) and saponin (0.85 g L− 1) did not remove high amounts of metals (4.4–15.8%) and provided only slightly better results for PAH and PCB removal (29.2% and 38.2%, respectively). The harbor sediment was highly resistant to metal and organics mobilization and transport because of an aged contamination, a high buffering capacity, a very low hydraulic permeability and a high organic matter content. The efficiency of the EK process was also assessed by measuring the acute toxicity of the EK-treated sediment on E. affinis copepods exposed to sediment elutriates. Fortunately, the use of CA and biosurfactants did not significantly impact on sediment toxicity. Some treated sediment sections, particularly those near the anode compartment, were statistically more toxic than the raw sediment. More particularly, E. affinis copepods were significantly sensitive to low pH values and oxidative conditions, to Cu, and to a lesser extent to Pb amounts. The speciation of these metals probably changed in these pH and redox conditions so that they became more easily leachable and bioavailable. In contrast, toxicity was negatively correlated to PAH and PCB amounts after EK treatment, probably due to the production of oxidized metabolites of PAHs and PCBs.
Databáze: OpenAIRE
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