Metal immobilization and soil amendment efficiency at a contaminated sediment landfill site: a field study focusing on plants, springtails, and bacteria

Autor: Marc Dazy, Asmaa Biaz, Christine Lors, Lucie Caron, Valérie Bert, Jean-François Ponge, Jean-François Masfaraud
Přispěvatelé: Centre National de Recherche sur les Sites et Sols Pollués (CNRSSP), Centre National de Recherche sur les Sites et Sols Pollués, Institut National de l'Environnement Industriel et des Risques (INERIS), Centre for Materials and Processes (CERI MP), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Université Lille Nord de France (COMUE), Mécanismes adaptatifs : des organismes aux communautés (MAOAC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes (LIEBE), Université Paul Verlaine - Metz (UPVM)-Centre National de la Recherche Scientifique (CNRS), Centre for Materials and Processes (CERI MP - IMT Nord Europe), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Nord Europe)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Environmental Pollution
Environmental Pollution, Elsevier, 2012, 169, pp.1-11. ⟨10.1016/j.envpol.2012.04.021⟩
Environmental Pollution, 2012, 169, pp.1-11. ⟨10.1016/j.envpol.2012.04.021⟩
ISSN: 0269-7491
1873-6424
DOI: 10.1016/j.envpol.2012.04.021⟩
Popis: International audience; Metal immobilization may contribute to the environmental management strategy of dredged sediment landfill sites contaminated by metals. In a field experiment, amendment effects and efficiency were investigated, focusing on plants, springtails and bacteria colonisation, metal extractability and sediment ecotoxicity. Conversely to hydroxylapatite (HA, 3% DW), the addition of Thomas Basic Slag (TBS, 5% DW) to a 5-yr deposited sediment contaminated with Zn, Cd, Cu, Pb and As resulted in a decrease in the 0.01 M Ca(NO(3))(2)-extractable concentrations of Cd and Zn. Shoot Cd and Zn concentration in Calamagrostis epigejos, the dominant plant species, also decreased in the presence of TBS. The addition of TBS and HA reduced sediment ecotoxicity and improved the growth of the total bacterial population. Hydroxylapatite improved plant species richness and diversity and decreased antioxidant enzymes in C. Epigejos and Urtica dïoica. Collembolan communities did not differ in abundance and diversity between the different treatments.
Databáze: OpenAIRE