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Academic literature on the topic 'Teneur en éléments traces métalliques'
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Journal articles on the topic "Teneur en éléments traces métalliques"
Souley Adamou, Hassane, Bassirou Alhou, Michèle Tackx, Jean Luc Probst, and Frédéric Azemar. "Distribution et enrichissement des éléments traces métalliques dans les sédiments du fleuve Niger, Niger." International Journal of Biological and Chemical Sciences 16, no. 6 (March 12, 2023): 2945–63. http://dx.doi.org/10.4314/ijbcs.v16i6.38.
Full textDiop, Tidiane, Abdoulaye Diarra, Mouhamadou Abdoulaye Diallo, Mame Mor Dione, and Abdoulaye Diop. "Impact d’une décharge urbaine sur la contamination métallique des sols : cas de la décharge de Mbeubeuss (Dakar)." International Journal of Biological and Chemical Sciences 16, no. 6 (March 12, 2023): 2992–3002. http://dx.doi.org/10.4314/ijbcs.v16i6.41.
Full textBodjona, Magnoudewa Bassai, Massama-Esso N'goumtete, Diheenane Diyakadola Bafai, Awedeou Kedjeba, Gado Tchangbedji, and Biritandjoma Ezekias Batako. "Production artisanale de biochar à partir des tiges de cotonniers du Togo : Analyse de sa qualité pour sa valorisation en amendement organiques." International Journal of Biological and Chemical Sciences 17, no. 7 (February 22, 2024): 2958–70. http://dx.doi.org/10.4314/ijbcs.v17i7.27.
Full textDiop, Cheikh, Dorothée Dewaele, Aminata Toure, Mathilde Cabral, Fabrice Cazier, Mamadou Fall, Baghdad Ouddane, and Amadou Diouf. "Étude de la contamination par les éléments traces métalliques des sédiments cotiers au niveau des points d’évacuation des eaux usées à Dakar (Sénégal)." Revue des sciences de l’eau 25, no. 3 (November 28, 2012): 277–85. http://dx.doi.org/10.7202/1013107ar.
Full textBONNEAU, M., F. BELINE, J. Y. DOURMAD, M. HASSOUNA, C. JONDREVILLE, L. LOYON, T. MORVAN, J. M. PAILLAT, Y. RAMONET, and P. ROBIN. "Connaissance du devenir des éléments à risques dans les différentes filières de gestion des effluents porcins." INRAE Productions Animales 21, no. 4 (September 27, 2008): 325–44. http://dx.doi.org/10.20870/productions-animales.2008.21.4.3409.
Full textDjeddi, Hamssa, Saliha Kherief Nacereddine, Dounia Keddari, and Fatima-Zohra Afri-Mehennaoui. "Teneurs Des Éléments Traces Métalliques Cu, Zn Et Pb Des Sédiments Du Barrage Béni Haroun (Nord-Est De l’Algérie)." European Scientific Journal, ESJ 14, no. 15 (May 31, 2018): 269. http://dx.doi.org/10.19044/esj.2018.v14n15p269.
Full textMichel, MMM, US Yannick, NN François, MM Emmanuel, KK Prisca, M. Muyembe, I. Kampanyi, and NK Luciens. "Évaluation des teneurs en éléments traces métalliques dans les légumes feuilles vendus dans les différents marchés de la zone minière de Lubumbashi." Journal of Applied Biosciences 66 (October 8, 2013): 5106. http://dx.doi.org/10.4314/jab.v66i0.95008.
Full textSenou, Issaka, Moïse Yoni, Hamza Ouedraogo, Hassan Bismarck Nacro, and Antoine N. Some. "Evaluation de la Translocation du Cadmium, du Cuivre, du Plomb et du Zinc par Zea mays L. cultivé Sur un Sol Ferrugineux Tropical dans l’Ouest du Burkina Faso." European Scientific Journal, ESJ 19, no. 9 (March 31, 2023): 137. http://dx.doi.org/10.19044/esj.2023.v19n9p137.
Full textGOURLEZ, EMMA, Fabrice BÉLINE, Jean-Yves DOURMAD, Alessandra MONTEIRO, and Francine DE QUELEN. "Rôle et impact environnemental du cuivre et du zinc en élevage porcin : de l’alimentation au retour au sol des effluents." INRAE Productions Animales 35, no. 2 (August 26, 2022): 91–108. http://dx.doi.org/10.20870/productions-animales.2022.35.2.7073.
Full textJean-Gael, Irié Bi Trazie, Aka Natchia, Kando Aney Marie-Laure, Coulibaly Aoua Sougo, and Monde Sylvain. "Enrichissement des sédiments de la lagune Ebrié (Côte d’Ivoire) en éléments traces métalliques (ETM) : influence sur la qualité des sédiments et les organismes benthiques." Journal of Applied Biosciences 142 (October 31, 2019): 14448–63. http://dx.doi.org/10.35759/jabs.142.2.
Full textDissertations / Theses on the topic "Teneur en éléments traces métalliques"
Gavalda, David. "Devenir des éléments traces métalliques dans les boulbènes (luvi-redoxisol) après épandage de boues granulées." Toulouse, INPT, 2001. http://www.theses.fr/2001INPT007A.
Full textVinit-Dunand, Florence. "Phytotoxicité et transfert sol-plante des éléments traces métalliques : influence de l'alimentation minérale." Besançon, 2002. http://www.theses.fr/2002BESA2047.
Full textThe first aim of this work was to improve the knowledge of copper excess effects on photosynthesis and growth of plants. Growth inhibition of cucumber plants by low copper excess induce photosynthesis inhibition. By strong copper contamination the photosynthesis and the growth are directly altered. The storage of metals in the roots seems to be a shoots protection strategy for plants. An other aim of this work was to bring about the influence of sulphur supply on phytotoxicity and soil to plant copper transfers. A sufficient sulphur nutrition gives a slight protection for leaf expansion of cucumber contaminated by low copper excess. This positive influence is not linked with modification of soil to plant copper transfers. The hypothesis would be that the mechanisms of protection and detoxification such as ascorbate-glutathion cycle or phytochelatins could be involved
Tanguy, Virginie. "Spéciation colloïdale des éléments traces métalliques en milieu estuarien." Phd thesis, Université de Bretagne occidentale - Brest, 2011. http://tel.archives-ouvertes.fr/tel-00708258.
Full textBlain, Stéphane. "Application de polyamines immobilisées à la préconcentration de traces métalliques en milieu marin." Brest, 1992. http://www.theses.fr/1992BRES2020.
Full textParat, Corinne. "Effets à long terme de l'apport répété de déchets organiques sur l'évolution de la matière organique et des éléments traces métalliques dans un sol sableux acide (Couhins, 33)." Dijon, 2002. https://tel.archives-ouvertes.fr/tel-01556412.
Full textPonthieu, Marie. "Spéciation des éléments traces métalliques dans les sols et les solutions des sols : du modèle au terrain." Aix-Marseille 3, 2003. http://www.theses.fr/2003AIX30059.
Full textNowadays, environmental problems related to soil pollution with heavy metals are numerous, therefore, it is important to understand metals behavior in soils and to appreciate their transfer. The fate of the metals in the environment is closely related to their interactions with the major reactive soil compartments (organic matter, iron and manganese oxides, clays). The objective of this work is to develop an approach based on the combination of several model to study metal ion speciation in the soil and the soil solution. Models used to describe the interactions of metals with the main reactive phases in the soil are CD-MUSIC (amorphous and crystallized iron oxides), NICA-Donnarf (organic matter and manganese oxides), cationic ion exchange model (clays). First, this work implies the definition of generic parameters to describe the interactions of the studied metals (Cd, Cu, Pb and Zn) with iron and manganese oxides, a part of this information is missing in the literature. Then, after the validation of the approach by comparison with analytical results, this multi-surface model is applied to two contaminated soils located in the North of France (atmospheric deposits) and in Brittany (intensive pig manure applications)
Gounou, Catherine. "Mobilité des éléments traces métalliques dans les sédiments : couplage et comparaison des approches chimique et microbiologique." Thesis, Paris Est, 2008. http://www.theses.fr/2008PEST0074/document.
Full textAntropic activities lead to the metallic contamination of river sediments. Most of trace metals are sorbed on sediments but a part of them can be released into aquatic environment when environmental conditions are modified. This is often due by the autochthonous microbial activity. Microbial activites and their consequences on the mobility of metals have been widely studied in soils. Metals are released through direct or indirect microbial mechanisms. Such studies in the case of sediments are very seldom. However, it can be usefull to understand the microbial mechanisms of metal release in sediments, and particularly for a good management of dredged sediments. In this environmental framework, the aim of this research work was to understand and to evaluate the role of the microbial and chemical mechanisms in the release of metals from river sediments in anaerobic conditions. Firstly, sediments from the Marne and Seine rivers were incubated in anaerobic conditions. A high solubilisation of iron and manganese occurred associated to the solubilisation of trace metals (Co, Cu, Ni, Pb). Meanwhile, organic acids were produced and the medium was acidified. Thus fermentation was supposed to be the main process of microbial metabolism. Furthermore these observations led us to suppose the presence of iron-reducing bacteria. In a second step, the extent of the iron-reducing activity was studied. The main iron-reducing bacteria identified in the Marne sediments belonged to the species Clostridium butyricum and Paenibacillus polymyxa. The use of a geochemical model revealed that fermentation and reduction of iron(III) were the main metabolic pathways. Finally direct (enzymatic reduction) and indirect (complexation with organic acids, acidification) impacts of iron-reducing bacteria on the release of metals were compared. Acidification and organic acids had a weak impact on metal solubility in the range of studied pH (between 6,5 and 5). Enzymatic reduction is the main mechanisms of metal release in anaerobic conditions. Indeed the metallic concentrations can be 40 times higher in the presence of iron-reducing bacteria
Gineys, Nathalie. "Influence de la teneur en éléments métalliques sur les propriétés techniques et environnementales du ciment Portland." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10111/document.
Full textThe use of Portland cement to immobilise waste through the process of stabilization / solidification is particularly effective. However, the treatment of numerous wastes containing a high content in metallic elements is still problematic. Indeed, some elements may modify the reactivity of Portland cement. For example, waste from nuclear activities which contain large amounts of zinc chloride, are known to completely inhibit the reactivity of Portland cement. One solution to solve this problem would be to use an alternative method to valorise these wastes without affecting the technical and environmental properties of cement. The work investigates the potential of immobilisation in cement kilns during the process of clinker sintering wastes highly contaminated in metallic elements. Three main aspects were considered. The first one dealt with the maximum amounts (threshold limits) of trace elements that could be incorporated into the clinker. The second step consisted to compare the potential of waste immobilisation through the stabilization / solidification process and during the sintering process. Finally, a more complex system simulating wastes containing several main metallic elements was investigated. The objective was to assess whether this type of waste can be immobilise into clinker. It appeared that large amounts of metallic elements can be incorporated during the sintering process without affecting the reactivity and technical properties of the Portland cement. In addition, preliminary results suggest that the durability of the cement matrix could be improved because the metallic elements are largely incorporated into C-S-H
Qasim, Bashar Hussein. "Détermination, spéciation et biodisponibilité des éléments traces métalliques dans les sols contaminés et technosols." Thesis, Orléans, 2015. http://www.theses.fr/2015ORLE2069/document.
Full textThis thesis dealt with the determination and study of the ecodynamics of trace metals in technosols highly contaminated in metals and metalloids in the context of natural revegetalisation or phytoremediation. Two sequential extraction schemes were used jointly with selective extractions in parallel with the determination of the total metals concentration in soils, the total dissolved metals concentration in the soil pore water, the metals labile pool (DGT) and germination tests with dwarf beans to investigate the speciation, mobility and phytoavailability of (Zn, Pb, Cd, As and Sb) for technosols of two post-mining (La Petite Faye) and industrial (Mortagne du Nord) sites. Additionally, young plants of P. euramericana Dorskamp were cultivated in rhizobox on Mortagne du Nord technosols to investigate the rhizospheric effect on the mobility of metals. Moreover, the effect of nitrogen addition under nitrate and ammonium on the behavior of these metals has been investigated for P. euramericana Dorskamp for the same soils. Despite the high total metals and metalloids concentration in the La Petite Faye soils, the mobility of these potentially toxic elements is limited because of their association with the residual fraction. The phytoavailability is also limited and correlated with the labile pool of technosols. The culture of P. euramericana Dorskamp generated a rhizospheric effect characterized by an increase of the pH and concentration of dissolved organic carbon (DOC) in the soil pore water and a decrease in the total dissolved concentration of metals (Zn, Pb et Cd) in the soil pore water. The addition of nitrogen under nitrate or ammonium respectively increased and decreased the soil pore water pH and in the case of ammonium the DOC also increased and stabilized metals in the rhizosphere in comparison to control soils
Lesven, Ludovic. "Devenir des éléments traces métalliques au sein du sédiment : un compartiment clé de l'environnement aquatique." Electronic Thesis or Diss., Lille 1, 2008. http://www.theses.fr/2008LIL10112.
Full textThe pollution of aquatic ecosystems by trace metals (TM) is one of the major problems to which is faced our present society. These metals pass in transit through the water column and are finally trapped in sediments. From then on, they are involved in several biogeochemical reactions that likely modify more or less significantly their speciation and therefore their (bio)availability for the whole trophic chain. My researches are involved in this environmental topic and take part in the European Program INTERREG-III, Stardust. Three cross-border sites between France and Belgium have mainly been considered for this thesis: Scheldt, Lys and Spierre rivers. Trace metal analysis in the three sites sediments have pointed out high contamination by cadmium. However the metals (mainly Cd, Cu, Pb and Zn) are mostly trapped in the reduced sulphur pool in these sediments. Conversely, Co and Ni are less trapped in these sediments due to their higher availability. Several sediment and porewater quality indexes have been used and shown that Spierre sediments seem to have a low toxicity according to the high AVS concentrations whereas interstitial waters are more polluted because of the low water hardness. Furthermore, the DGT -AgI technique used for the determination of dissolved sulphides has been deployed successfully in the North Sea sediment core to emphasize the sëasonal effect on the sulphides production. ln the same way, our work on gold microelectrodes results finally in the monitoring on line of Zn and Pb concentration in Deùle river, and sorne preliminary measurements directly in the Deûle sediments
Books on the topic "Teneur en éléments traces métalliques"
Environmental and Water Resources Institute (U.S.). Hazardous Waste Committee, ed. Application of chelating agents for land decontamination technologies. Reston, VA: American Society of Civil Engineers, 2012.
Find full textHeavy metal contamination of water and soil: Analysis, assessment, and remediation strategies. Toronto: Apple Academic Press, 2014.
Find full textIll.) Geo-Chicago (2016 Chicago. Geo-Chicago 2016: Geotechnics for sustainable energy : selected papers from sessions of Geo-Chicago 2016, August 14-18, 2016, Chicago, Illinois. Reston, Va: American Society of Civil Engineers, 2016.
Find full textIll.) Geo-Chicago (2016 Chicago. Geo-Chicago 2016: Sustainable materials and resource conservation : selected papers from sessions of Geo-Chicago 2016, August 14-18, 2016, Chicago, Illinois. Reston, Va: American Society of Civil Engineers, 2016.
Find full textIll.) Geo-Chicago (2016 Chicago. Geo-Chicago 2016: Sustainability and resiliency in geotechnical engineering : selected papers from sessions of Geo-Chicago 2016, August 14-18, 2016, Chicago, Illinois. Reston, Va: American Society of Civil Engineers, 2016.
Find full textIll.) Geo-Chicago (2016 Chicago. Geo-Chicago 2016: Sustainable waste management and remediation : selected papers from sessions of Geo-Chicago 2016, August 14-18, 2016, Chicago, Illinois. Reston, Va: American Society of Civil Engineers, 2016.
Find full textIll.) Geo-Chicago (2016 Chicago. Geo-Chicago 2016: Sustainable geoenvironmental systems : selected papers from sessions of Geo-Chicago 2016, August 14-18, 2016, Chicago, Illinois. Reston, Va: American Society of Civil Engineers, 2016.
Find full textBibudhendra, Sarkar, ed. Heavy metals in the environment. New York: Marcel Dekker, 2002.
Find full textGenetic heavy metal toxicity: Explaining SIDS, autism, Tourette's, Alzheimer's and other epidemics. New York: iUniverse, 2008.
Find full text1924-, Odum Howard T., ed. Heavy metals in the environment: Using wetlands for their removal. Boca Raton: Lewis Publishers, 2000.
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