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Evaluation of cyclonic ash, commercial Na-silicates, lime and phosphoric acid for metal immobilisation purposes in contaminated soils in Flanders (Belgium)

hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorGEEBELEN, Wouter
hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
dc.contributor.authorSAPPIN-DIDIER, Valerie
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorRUTTENS, Ann
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorCARLEER, Robert
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorYPERMAN, Jan
hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
dc.contributor.authorBONGUE-BOMA, Kwélé
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorMENCH, Michel
hal.structure.identifierBrookhaven National Laboratory [Upton, NY] [BNL]
dc.contributor.authorVAN DER LELIE, Niels
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorVANGRONSVELD, Jaco
dc.date.issued2006
dc.identifier.issn0269-7491
dc.description.abstractEnIn order to reduce the health risks associated with historically enriched metal smelting sites in Flanders (Belgium), the capacities of a non-beringite cyclonic ash and commercial Na-silicates to fix metals and create conditions to restore vegetation cover were evaluated and compared to lime and H3PO4. All tested amendments reduced Ca(NO3)2-extractable soil metal concentrations and reduced metal uptake in Agrostis capillaris seedlings. Sodium released by Na-silicates was possibly toxic to bean plants while an isotopic dilution technique revealed that metals were only weakly sorbed by silicates (i.e. reversible sorption). Cyclonic ash appeared more efficient than lime in both reducing oxidative stress in beans and Zn, Cu and Pb uptake in grasses. The metal fixing mechanism for both amendments appeared similar (i.e. irreversible fixation at constant pH), in contrast to H3PO4 where at least part of the immobilised Cd was irreversibly fixed across a range of pH
dc.language.isoen
dc.publisherElsevier
dc.subject.enCADMIUM
dc.subject.enISOTOPIC DILUTION
dc.subject.enISOTOPIC EXCHANGE KINETICS
dc.subject.enPHYTOTOXICITY
dc.subject.enNORD DE LA FRANCE
dc.title.enEvaluation of cyclonic ash, commercial Na-silicates, lime and phosphoric acid for metal immobilisation purposes in contaminated soils in Flanders (Belgium)
dc.typeArticle de revue
dc.identifier.doi10.1016/j.envpol.2006.01.013
dc.subject.halSciences de l'environnement/Environnement et Société
bordeaux.journalEnvironmental Pollution
bordeaux.page32-39
bordeaux.volume144
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02665961
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02665961v1
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