Chemical oxidation efficiency for aged, PAH-contaminated sites: An investigation of limiting factors

Autor: Julien Lemaire, Verónica C. Mora, Pierre Faure, Marie-Odile Simonnot, Michel Buès, Khalil Hanna
Přispěvatelé: Laboratoire Réactions et Génie des Procédés (LRGP), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), GeoRessources, Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Institut national des sciences de l'Univers (INSU - CNRS), Conseil Régional de Lorraine, Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Aged contaminated soil
In situ chemical oxidation
Otras Ingeniería del Medio Ambiente
02 engineering and technology
INGENIERÍAS Y TECNOLOGÍAS
010501 environmental sciences
01 natural sciences
chemistry.chemical_compound
PAHs
LIMITING FACTORS
Limiting factors
Chemical Engineering (miscellaneous)
Ingeniería del Medio Ambiente
Waste Management and Disposal
0105 earth and related environmental sciences
AGED CONTAMINATED SOIL
[SDE.IE]Environmental Sciences/Environmental Engineering
Process Chemistry and Technology
Soil organic matter
AVAILABILITY
Permanganate
Availability
15. Life on land
Contamination
021001 nanoscience & nanotechnology
Persulfate
Pollution
6. Clean water
PAHS
chemistry
Reagent
Environmental chemistry
Soil water
Degradation (geology)
IN SITU CHEMICAL OXIDATION
0210 nano-technology
[CHIM.OTHE]Chemical Sciences/Other
Zdroj: Journal of Environmental Chemical Engineering
Journal of Environmental Chemical Engineering, Elsevier, 2019, 7 (3), pp.103061. ⟨10.1016/j.jece.2019.103061⟩
Journal of Environmental Chemical Engineering, 2019, 7 (3), pp.103061. ⟨10.1016/j.jece.2019.103061⟩
ISSN: 2213-3437
2213-2929
DOI: 10.1016/j.jece.2019.103061⟩
Popis: In Situ Chemical Oxidation (ISCO) can be applied to soils contaminated by polyaromatic hydrocarbons (PAHs). PAH degradation yields are often rather low, because of different obstacles not clearly understood. These include the low availability of PAHs, the type and age of soil organic matter and the carbonate content of the soil. The aim of this work was to provide a better understanding of the influence of these limiting factors at a given oxidant dose. Batch experiments were performed on contrasted PAH-contaminated soils or matrices using permanganate, persulfate, modified Fenton’s reagent and activated persulfate. PAH availability was estimated by a cyclodextrin-enhanced extraction method. Moderate amounts of oxidant were used in order to lower costs whilst minimizing environmental impacts. Results showed that chemical oxidation efficiency was mainly affected by PAH availability, particularly with low persistent oxidant. With permanganate, a correlation was found between PAH availability and degradation yield. With low persistent oxidants, degradation yields were significantly increased by sequential addition. The negative impacts of a high content of soil organic matter and/or carbonate were highlighted. For the aged contaminated soils, PAH degradation yields remained below 30% after most treatments except with permanganate (40–60%) and sequential addition of Fenton’s reagent (40–70%). These results should have useful implications for the design of ISCO treatments. Fil: Lemaire, Julien. Université de Lorraine; Francia Fil: Mora, Veronica Cecilia. Université de Lorraine; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centre National de la Recherche Scientifique; Francia Fil: Faure, Pierre. Université de Lorraine; Francia Fil: Hanna, Khalil. Centre National de la Recherche Scientifique; Francia. Ecole Nationale Supérieure de Chimie de Rennes; Francia Fil: Buès, Michel. Université de Lorraine; Francia. Centre National de la Recherche Scientifique; Francia Fil: Simonnot, Marie Odile. Université de Lorraine; Francia. Centre National de la Recherche Scientifique; Francia
Databáze: OpenAIRE
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