Enhanced electrokinetic remediation of multi-contaminated dredged sediments and induced effect on their toxicity

Autor: Mohamed-Tahar Ammami, Yue Tian, Céline Boulangé-Lecomte, Ahmed Benamar, Nathalie Giusti-Petrucciani, Y. Song, Florence Portet-Koltalo
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), CESI : groupe d’Enseignement Supérieur et de Formation Professionnelle (CESI), 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), Shandong University
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Geologic Sediments
Environmental Engineering
Environmental remediation
Health
Toxicology and Mutagenesis
0208 environmental biotechnology
02 engineering and technology
010501 environmental sciences
01 natural sciences
Copepoda
Surface-Active Agents
Electrokinetic phenomena
Electrochemistry
Toxicity Tests
Acute
Animals
Environmental Chemistry
[CHIM]Chemical Sciences
Organic matter
Polycyclic Aromatic Hydrocarbons
Environmental Restoration and Remediation
Chelating Agents
0105 earth and related environmental sciences
Pollutant
chemistry.chemical_classification
Electrokinetic remediation
Chemistry
Public Health
Environmental and Occupational Health
Sediment
General Medicine
General Chemistry
Human decontamination
Hydrogen-Ion Concentration
Contamination
Polychlorinated Biphenyls
Pollution
6. Clean water
020801 environmental engineering
Metals
13. Climate action
Environmental chemistry
France
Water Pollutants
Chemical
Zdroj: Chemosphere
Chemosphere, Elsevier, 2019, 228, pp.744-755. ⟨10.1016/j.chemosphere.2019.04.063⟩
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2019.04.063⟩
Popis: International audience; Electrokinetic (EK) remediation is often developed for metal decontamination but shows limitations for polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) which are nonionic and involve low aqueous solubility. This paper reports many laboratory studies devoted to the investigations of EK efficiency on the mobility and the removal of metals, PAHs and PCBs from dredged sediments, using a mixture of chelating agent and surfactants. The results showed that increasing chelating agent concentration was favorable for both metal and PAH removal. Applying a periodic voltage gradient associated to a low concentration of additives provided the best removal of Zn, Cd and Pb and also the 16 priority PAHs. The tested fresh harbor sediment was highly resistant to metals 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. However, experiments performed on a former sediment which was deposited many years ago provided better removal results, involving low organic matter and carbonates content. The efficiency of the EK process was also assessed by measuring the acute toxicity of the EK-treated sediment on the copepod Eurytemora affinis exposed to sediment elutriates.
Databáze: OpenAIRE
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