Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils
The fate of pollutants associated with organic wastes is a key issue. For example, pig slurry presents high concentration of Copper (Cu) and Zinc (Zn) since they are used (at high concentration) as essential micronutrients in animal feeds. As a consequence, Cu and Zn accumulation was measured in soil surface layers that had been amended with pig slurry, inducing phytotoxicity as well as groundwater quality degradation. Better prediction of the mobility and bioavailability of Cu and Zn from pig slurry spreading can be achieved by determining the speciation of these elements. The aim of this study is to investigate Cu and Zn speciation in pig slurry. A multitechnique approach was adopted including size fractionation, XRD, SEM-EDS, ?XRF and XAS. The present study demonstrated that only 0.2% of total Cu or Zn present in pig slurry was bound to particles smaller than 0.45 ?m, while 75% of total Cu and Zn was bound to particles in the 0.45-20 ?m size range. ?XRF highlighted the colocalisation of Cu and sulfur. In addition, geochemical modelling demonstrated that physical chemical conditions within pig slurry lagoon are compatible with the precipitation of chalcocite (Cu2S). Finally, XANES shows that Cu speciation in raw pig slurry and size fractions is described by Cu2S and that its oxidation state is Cu(I). These Cu speciation in pig slurry may be the main reason for the observed Cu accumulation at the soil surface. Zn speciation revealed three patterns 49% Zn bound to organic matter, 37% amorphous Zn hydroxide, and 14% sphalerite (ZnS). The detected presence Zn sulphide, was unexpected and is reported for the first time. These three Zn forms seemed to be soluble in neutral or weakly acid soil systems, so the long-term impact of pig slurry spreading could lead to Zn leaching.
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Subjects: | Q70 - Traitement des déchets agricoles, P33 - Chimie et physique du sol, cuivre, zinc, propriété physicochimique du sol, propriété physicochimique, toxicité, lisier, porcin, http://aims.fao.org/aos/agrovoc/c_1868, http://aims.fao.org/aos/agrovoc/c_8517, http://aims.fao.org/aos/agrovoc/c_7182, http://aims.fao.org/aos/agrovoc/c_1521, http://aims.fao.org/aos/agrovoc/c_7826, http://aims.fao.org/aos/agrovoc/c_16602, http://aims.fao.org/aos/agrovoc/c_7555, |
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dig-cirad-fr-5641172024-01-28T20:24:36Z http://agritrop.cirad.fr/564117/ http://agritrop.cirad.fr/564117/ Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils. Legros Samuel, Doelsch Emmanuel, Masion Armand, Chaurand Perrine, Rose Jérôme, Borschneck Daniel, Proux Olivier, Saint Macary Hervé, Bottero Jean Yves. 2011. In : Fundamental for life: soil, crop and environmental sciences. ASA, CSSA and SSSA 2011 International Annual Meetings, October 16-19, 2011, San Antonio, Etats-Unis; ASA; CSSA; SSSA. s.l. : s.n., Résumé, 1 p. ASA, CSSA and SSSA 2011 International Annual Meetings, San Antonio, États-Unis, 16 Octobre 2011/19 Octobre 2011.http://scisoc.confex.com/crops/2011am/webprogram/Paper67616.html <http://scisoc.confex.com/crops/2011am/webprogram/Paper67616.html> Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils Legros, Samuel Doelsch, Emmanuel Masion, Armand Chaurand, Perrine Rose, Jérôme Borschneck, Daniel Proux, Olivier Saint Macary, Hervé Bottero, Jean Yves eng 2011 s.n. Fundamental for life: soil, crop and environmental sciences Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 The fate of pollutants associated with organic wastes is a key issue. For example, pig slurry presents high concentration of Copper (Cu) and Zinc (Zn) since they are used (at high concentration) as essential micronutrients in animal feeds. As a consequence, Cu and Zn accumulation was measured in soil surface layers that had been amended with pig slurry, inducing phytotoxicity as well as groundwater quality degradation. Better prediction of the mobility and bioavailability of Cu and Zn from pig slurry spreading can be achieved by determining the speciation of these elements. The aim of this study is to investigate Cu and Zn speciation in pig slurry. A multitechnique approach was adopted including size fractionation, XRD, SEM-EDS, ?XRF and XAS. The present study demonstrated that only 0.2% of total Cu or Zn present in pig slurry was bound to particles smaller than 0.45 ?m, while 75% of total Cu and Zn was bound to particles in the 0.45-20 ?m size range. ?XRF highlighted the colocalisation of Cu and sulfur. In addition, geochemical modelling demonstrated that physical chemical conditions within pig slurry lagoon are compatible with the precipitation of chalcocite (Cu2S). Finally, XANES shows that Cu speciation in raw pig slurry and size fractions is described by Cu2S and that its oxidation state is Cu(I). These Cu speciation in pig slurry may be the main reason for the observed Cu accumulation at the soil surface. Zn speciation revealed three patterns 49% Zn bound to organic matter, 37% amorphous Zn hydroxide, and 14% sphalerite (ZnS). The detected presence Zn sulphide, was unexpected and is reported for the first time. These three Zn forms seemed to be soluble in neutral or weakly acid soil systems, so the long-term impact of pig slurry spreading could lead to Zn leaching. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/564117/1/document_564117.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://scisoc.confex.com/crops/2011am/webprogram/Paper67616.html info:eu-repo/semantics/altIdentifier/purl/http://scisoc.confex.com/crops/2011am/webprogram/Paper67616.html |
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Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 |
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Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 Legros, Samuel Doelsch, Emmanuel Masion, Armand Chaurand, Perrine Rose, Jérôme Borschneck, Daniel Proux, Olivier Saint Macary, Hervé Bottero, Jean Yves Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
description |
The fate of pollutants associated with organic wastes is a key issue. For example, pig slurry presents high concentration of Copper (Cu) and Zinc (Zn) since they are used (at high concentration) as essential micronutrients in animal feeds. As a consequence, Cu and Zn accumulation was measured in soil surface layers that had been amended with pig slurry, inducing phytotoxicity as well as groundwater quality degradation. Better prediction of the mobility and bioavailability of Cu and Zn from pig slurry spreading can be achieved by determining the speciation of these elements. The aim of this study is to investigate Cu and Zn speciation in pig slurry. A multitechnique approach was adopted including size fractionation, XRD, SEM-EDS, ?XRF and XAS. The present study demonstrated that only 0.2% of total Cu or Zn present in pig slurry was bound to particles smaller than 0.45 ?m, while 75% of total Cu and Zn was bound to particles in the 0.45-20 ?m size range. ?XRF highlighted the colocalisation of Cu and sulfur. In addition, geochemical modelling demonstrated that physical chemical conditions within pig slurry lagoon are compatible with the precipitation of chalcocite (Cu2S). Finally, XANES shows that Cu speciation in raw pig slurry and size fractions is described by Cu2S and that its oxidation state is Cu(I). These Cu speciation in pig slurry may be the main reason for the observed Cu accumulation at the soil surface. Zn speciation revealed three patterns 49% Zn bound to organic matter, 37% amorphous Zn hydroxide, and 14% sphalerite (ZnS). The detected presence Zn sulphide, was unexpected and is reported for the first time. These three Zn forms seemed to be soluble in neutral or weakly acid soil systems, so the long-term impact of pig slurry spreading could lead to Zn leaching. |
format |
conference_item |
topic_facet |
Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol cuivre zinc propriété physicochimique du sol propriété physicochimique toxicité lisier porcin http://aims.fao.org/aos/agrovoc/c_1868 http://aims.fao.org/aos/agrovoc/c_8517 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_7826 http://aims.fao.org/aos/agrovoc/c_16602 http://aims.fao.org/aos/agrovoc/c_7555 |
author |
Legros, Samuel Doelsch, Emmanuel Masion, Armand Chaurand, Perrine Rose, Jérôme Borschneck, Daniel Proux, Olivier Saint Macary, Hervé Bottero, Jean Yves |
author_facet |
Legros, Samuel Doelsch, Emmanuel Masion, Armand Chaurand, Perrine Rose, Jérôme Borschneck, Daniel Proux, Olivier Saint Macary, Hervé Bottero, Jean Yves |
author_sort |
Legros, Samuel |
title |
Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
title_short |
Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
title_full |
Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
title_fullStr |
Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
title_full_unstemmed |
Copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
title_sort |
copper and zinc speciation in pig slurry: implications on mobility and bioavailability in soils |
publisher |
s.n. |
url |
http://agritrop.cirad.fr/564117/ http://agritrop.cirad.fr/564117/1/document_564117.pdf |
work_keys_str_mv |
AT legrossamuel copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT doelschemmanuel copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT masionarmand copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT chaurandperrine copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT rosejerome copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT borschneckdaniel copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT prouxolivier copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT saintmacaryherve copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils AT botterojeanyves copperandzincspeciationinpigslurryimplicationsonmobilityandbioavailabilityinsoils |
_version_ |
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