Stable isotopes analysis combined with X-ray absorption spectroscopy reveal the fate of organic waste-borne copper and zinc in amended soils
Copper (Cu) and zinc (Zn), two potentially toxic trace elements, are commonly abundant in organic wastes (OWs) recycled in soils as fertilizer. Yet current knowledge on the long-term behavior and fate of Cu and Zn in soil following OW spreading is scant. We addressed this issue by studying the fate of OW-borne Cu and Zn in amended soils from four different long-term field experiments. By combining the stable isotope analysis and X-ray absorption spectroscopy, we identified changes in Cu and Zn concentrations, speciation and isotopic compositions in the amended soils only when OW had been applied at high rates over long periods. Under these conditions, we highlighted that: (i) all OW-derived Cu and Zn had accumulated in the topsoil layer regardless of the soil and OW type; (ii) the amended soil isotopic signatures were the result of the mixing of OW-borne and natural Cu and Zn; and (iii) Cu and Zn exhibited distinct speciation patterns in amended soils. Indeed, the unprecedented persistence of OW-borne crystallized Cu(I)-sulfide in the amended soils contrasted with the complete transformation of pig slurry-borne nanosized Zn-sulfide or household compost-derived amorphous Zn phosphate and Zn complexed by organic matter.
Authors
- Thierry Morvan (ORCID: https://orcid.org/0000-0002-6678-2661)
- Abel Guihou (ORCID: https://orcid.org/0000-0001-7347-378X)
- Jakob Magid (ORCID: https://orcid.org/0000-0001-5867-0910)
- Frédéric Feder (ORCID: https://orcid.org/0000-0001-8434-5193)
- Denis Testemale (ORCID: https://orcid.org/0000-0003-2204-5464)
- Emmanuel Dœlsch (ORCID: https://orcid.org/0000-0002-7478-4296)
- Pierre Deschamps (ORCID: https://orcid.org/0000-0003-1687-3765)
- Abraham Pappoe
- Zuzana Fekiacova-Castanet
- Àngela D. Bosch‐Serra
Institutions
- Institut polytechnique de Grenoble (FR)
- University of Copenhagen (DK)
- Centre National de la Recherche Scientifique (FR)
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement (FR)
- Universitat de Lleida (ES)
- Université de Montpellier (FR)
- Agropolis International (FR)
- Institut Agro Rennes-Angers (FR)
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
- Centre de Recherche et d’Enseignement de Géosciences de l’Environnement (FR)
- Gouvernance, Risque, Environnement, Développement (FR)
- Sol Agro et hydrosystème Spatialisation (FR)
- Institut Néel (FR)
- Institut de Recherche pour le Développement (FR)
- Recyclage et risque (FR)
- Université Grenoble Alpes (FR)
Publication Details
- Journal
- Journal of Hazardous Materials
- Published
- 2024-10-02
- DOI
- https://doi.org/10.1016/j.jhazmat.2024.136039
- Citations
- 3
- Primary Topic
- Heavy metals in environment
- Type
- article
- Field-Weighted Citation Impact
- 0.40
Funders
- Agence Nationale de la Recherche
- European Synchrotron Radiation Facility
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement
- Analyses et Expérimentations pour les Ecosystèmes
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
- Institut national des sciences de l'Univers