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Academic literature on the topic 'Pollution de l’eau par les colorants'
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Journal articles on the topic "Pollution de l’eau par les colorants"
Mansour, Hedi Ben, Oualid Boughzala, dorra Dridi, Daniel Barillier, Leila Chekir-Ghedira, and Ridha Mosrati. "Les colorants textiles sources de contamination de l’eau : CRIBLAGE de la toxicité et des méthodes de traitement." Revue des sciences de l’eau 24, no. 3 (November 28, 2011): 209–38. http://dx.doi.org/10.7202/1006453ar.
Full textGarnier, R. "Pollution de l’eau par du dinoterbe." Archives des Maladies Professionnelles et de l'Environnement 75, no. 3 (June 2014): 333–34. http://dx.doi.org/10.1016/j.admp.2014.03.217.
Full textAbid, Aziza, and Abdeljalil Zouhri. "Substitution des floculants chimiques par le cactus dans le procédé de traitement par coagulation-floculation des rejets industriels de textile." Journal of Renewable Energies 20, no. 1 (October 12, 2023): 61–67. http://dx.doi.org/10.54966/jreen.v20i1.609.
Full textManus, Jean-Marie. "Pollution par les PFAS : l’eau du robinet est-elle toxique ?" Revue Francophone des Laboratoires 2024, no. 560 (March 2024): 17. http://dx.doi.org/10.1016/s1773-035x(24)00101-1.
Full textKADRI, S., K. HOUD-CHAKER, M. F. SAMAR, L. MEBIROUK-BOUDECHICHE, and H. NASRI. "Diagnostic qualitatif des sources d’abreuvement des vaches laitières dans la wilaya d’El Tarf (Algérie)." 7-8, no. 7-8 (August 22, 2022): 65–74. http://dx.doi.org/10.36904/tsm/202207065.
Full textNguyen, Phu Duc, Babacar Toumbou, Sophie Duchesne, Nomessi Kokutse, and Jean-Pierre Villeneuve. "Évaluation de l’impact de la pollution diffuse sur la qualité de l’eau en rivière avec données restreintes : cas d’application du bassin versant de la rivière Cau." Revue des sciences de l’eau 31, no. 3 (December 10, 2018): 293–312. http://dx.doi.org/10.7202/1054308ar.
Full textAmharref, Mina, Saadia Aassine, Abdes Samed Bernoussi, and Ben Younes Haddouchi. "Cartographie de la vulnérabilité à la pollution des eaux souterraines : Application à la plaine du Gharb (Maroc)." Revue des sciences de l'eau 20, no. 2 (May 16, 2007): 185–99. http://dx.doi.org/10.7202/015812ar.
Full textLE GOFFE, P. "La politique de l’eau : approche économique et application à la pollution des élevages." INRAE Productions Animales 21, no. 5 (November 27, 2008): 419–26. http://dx.doi.org/10.20870/productions-animales.2008.21.5.3416.
Full textNACIRI, M. "La cryptosporidiose. Importance de la contamination de l’eau." INRAE Productions Animales 5, no. 5 (February 29, 1992): 319–27. http://dx.doi.org/10.20870/productions-animales.1992.5.5.4246.
Full textKalloum, Slimane, Abdelkader Iddou, Mostefa Khelafi, and Abdelkader Touzi. "Utilisation du procédé de la digestion anaérobie pour le traitement des boues des stations d’épuration des eaux usées." Journal of Renewable Energies 16, no. 4 (October 22, 2023): 611–18. http://dx.doi.org/10.54966/jreen.v16i4.404.
Full textDissertations / Theses on the topic "Pollution de l’eau par les colorants"
Shokouhfar, Nasrin. "Synthèse et caractérisation de nouvelles armatures métal-organique à base de zirconium à partir de ligands carboxylates et étude de leur application dans l'adsorption et la détection des pollutions de l'eau et la capture et la conversion du CO2 et N2." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN058.
Full textThis thesis investigates the synthesis and characterization of Zr-based metal-organic frameworks (MOFs) and their applications in water treatment and solar fuel production. MOFs are porous materials composed of metal ions and organic linkers that exhibit tuneable structures and functionalities. These properties make them suitable for various applications, such as gas storage, catalysis, sensing, drug delivery, etc.Water treatment is the process of removing contaminants from water to make it safe and clean for human use. One of the main contaminants in water are dyes, which are widely used in the textile, paper, and leather industries. Dye pollution can cause serious problems for aquatic life, human health, and aesthetic quality of water. To remove dyes from water, we synthesized a new Zr-MOF called TMU-66, which has a hollow sphere shape and an N-oxide functional group. TMU-66 can efficiently and selectively adsorb dye molecules through various interactions, such as electrostatic attraction, π-π stacking, and coordination bonding. TMU-66 exhibited and adsorption capacity of 472 mg/g for Congo red dye at pH 6.8 and 25 °C, one of the highest values achieved for MOF-based adsorbents so far.Solar fuel production is the process of converting solar energy into chemical fuels that can be stored and used later. One of the most promising fuels is ammonia (NH3), which can be produced from nitrogen (N2) and water (H2O) using sunlight as the energy source. This process is called N2 photoreduction or photocatalytic nitrogen fixation. However, this process is challenging because N2 is very stable and difficult to break apart. We modified another Zr-MOF called MOF-808 by adding a nitro group to its linker. The modified framework is able to absorb visible light and transfer electrons to N2 molecules. We also combined MOF-808/NIP with another material called g-C3N4, which can enhance light absorption and electron transfer. The resulting composite, MOF-808/NIP@g-C3N4, can produce up to 490 μmol ammonia per gram of composite per hour under visible light and ambient conditions.In summary, the objectives of this thesis work were to investigate the potential of MOFs for two distinct applications, utilizing a conceptual design approach that incorporated bandgap engineering, structure modulation, and heterojunction composite materials. The findings revealed that MOFs can absorb water impurities and function as photocatalysts to achieve ammonia production through solar-powered N2 photoreduction. This breakthrough has the potential to foster the creation of more effective and environmentally conscious technologies that tackle worldwide water pollution and ammonia production issues. These technologies are crucial in safeguarding our planet and guaranteeing a stable future
Martignac, Marion. "Dégradation de médicaments dans l’eau par un procédé d’oxydation avancée photochimique." Toulouse 3, 2013. http://www.theses.fr/2013TOU30321.
Full textSeveral pharmaceutical compounds have been found in surface waters (sea, rivers…), ground waters and drinking water at low concentrations (ng L-1). These compounds are from human and veterinary origin, as the consumption of the administrated drugs results in their excretion, into both urine and faeces, either unaltered as the parent compounds or as metabolites. Contamination may also originate from manufacturing wastes. The Sewage Treatment Plant (STP) is currently not designed for the removal of these compounds at trace level. Oxidation processes could be a solution for the degradation and removal of these pollutants. Advanced oxidation processes (AOPs) using catalytic and photochemical methods have led to an improvement in oxidative degradation procedures for organic compounds. AOPs comprise a range of strategies for water treatment to achieve complete mineralization of organic pollutants. Oxidation of organic pollutants by the combination of UV radiation and oxidants (ozone, H2O2…) implies in most cases generation of hydroxyl radicals. These radicals are one of the most reactive and non selective oxidizing species. Besides the generation of hydroxyl radicals, organic free radicals are produced and their trapping by molecular oxygen initiates the chain of oxidative degradation. We investigated the removal of different pharmaceuticals (paracetamol, carbamazepine, penicillin, bortezomib and 5-fluorouracil) by a photochemical advanced oxidation process. We used several analytic methods like liquid chromatography coupled with mass spectrometry in order to follow the kinetic and the mechanism of degradation. Experiments were performed in annular photochemical reactor lab version of a reactor at pilot scale Loïlyse®, the obtained results validated the application domain
Zazou, Hicham. "Dégradation de pesticides dans l’eau par les procédés d’oxydation avancée (POA)." Thesis, Paris Est, 2015. http://www.theses.fr/2015PEST1071/document.
Full textThe intensive use of pesticides in agriculture generates, nowadays, an unprecedented contamination of surface water and groundwater. Conventional treatments applied to waste water containing organic pollutants are based on biological treatments méthods or physical mass transfer methods (decantation, filtration, adsorption of the pollutants on activated carbon), chemical oxidation with ozone, chlorine, etc. However, these methods remain ineffective for the treatment of water polluted by persistent organic pollutants (POPs). Advanced oxidation processes are implemented to degrade and mineralize these pollutants. This PhD thesis work aims to establish an experimental protocol to degrade and mineralize pesticides, chemicals widely used in agriculture in Morocco, such as monochlorobenzene, 1,2-dichlorobenzene, 2,4,5-trichlorophenoxy-acetic acid , and imazalil using the electro-Fenton and anodic oxidation processes with DD Pt or DSA anodes. Thus, the rate of mineralization was 92%, 95%, 92% and 97% for the monochloro-benzene, the 1,2-dichlorobenzene, the 2,4,5-trichlorophenoxyacetic acid , and the imazalil, respectively, after 4 h treatment by electro-Fenton process. These results confirm the effectiveness of electrochemical advanced oxidation processes for treating water polluted by pesticides
Nehme, Nada. "Évaluation de la qualité de l’eau du bassin inférieur de la rivière du Litani, Liban : approche environnementale." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0296/document.
Full textThe objective of this study was to evaluate water quality of the lower Litani River and assess its feasibility for multi-purpose usage as one of the solutions to the aggravated water problems in Lebanon, To identify possible sources of metals (i.e. geological and/or anthropogenic) and then to characterize the chemical behavior of these metals in water and bed sediments, water and bed load sediments were sampled at six representatives sites which are investigated over three seasons of the year 2011-2012 (i.e. rainy, mid-rainy and dry seasons), The PCA (principal component analysis) method was used to interpret the elemental concentrations in the river water. Results show that among 18 variables, which were evaluated to characterize their physic-chemistry and metals, there are only 4 (Fe, NO2-, CaCO3, Cu) that were determined the type of environmental studied; Three groups were identified and differentiated by PCA according to the seasons. The first group includes all statements made in the mid rainy season and has a dialogue rich in Fe and NO2, and low in NH4 and EC. The second group formed in dry season, and surveys show physicochemical characteristics opposite to those in the first group, the third group formed in mid rainy, and showed the low concentration of K+, PO43- and Cl-. Sediments were characterized by a set of cations exchange capacity, granulometric, diffraction (XRD) and Fourier transformed infrared spectroscopy (FTIR( The FTIR analysis shows that the amount of montomorillonite is less than kaolinite and very much less than quartz and calcite. Pearson’s correlation was also performed in this study to compare to and determine the correlation between heavy metals in the sediments. Geo-accumulation (Igeo) index, Contamination Factor (Cf), and contamination degree (Cd) were also applying to assess the level of contamination in the sites. The results shows that the concentration of Pb, Fe are high in the site S5, S6 and the value of Cr ,Ni, are high in the S6, this results suggest that special attention must be given to the issue of element re-mobilization, because a large portion of elements in sediments are likely to release back into the water column. All the sites are characterized by moderate to highly microbial polluted range. The degree of contamination was increased in dry season. However, no critical physicochemical pollution has been reported in this part of the river; except the high concentration of Fe and NO2- in all investigated sites due to the reject of wastewater and to the distribution of touristic activities in the LLRB, the Concentrations of seven heavy metals is high(Cu, Fe, Cd , Mn , Cr, Zn, Ni and Pb) for sediment is higher according to Consensus-based sediment quality guidelines of Wisconsin (Wisconsin Department of Natural Resources, 2003) were applied to assess metal contamination in sediment
Chen, Ningxin. "Processus de transfert de l’eau et des contaminants agricoles dans la zone non saturée de la craie." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS588.
Full textThe chalk aquifer is an important source of drinking water, and the quality of which has deteriorated in recent decades, due to the use of fertilizers and pesticides on the surface. Chalk is a heterogeneous medium because of its double porosity: matrix and fractures, and often covered by superficial formations. The purpose of this thesis is to characterize the transfer processes of water and contaminants in the unsaturated zone (UZ), and to understand how they are influenced by the properties of the UZ. This study is carried out on the underground quarry of Saint-Martin-le-Nœud. The chalk is covered by a layer of clay of varying thickness. The quarry is at the boundary between the UZ and the saturated zone (ZS) allows direct access to the ZNS. On the ceiling, the water percolates and in the lower parts watertable forms lakes. The hydrochemical and hydrodynamic properties of 16 sites (lake + percolation) were observed for several years. The study of the spatio-temporal variation of groundwater shows: water and contaminants are transferred mainly by the matrix (~1 m / year) with a part transferred by fractures (~100 m / year) and these transfer rates vary depending on the type of molecule (different between solute and organic molecule); the transfers are mainly results of the piston flow with a small part of direct transfer. Characteristics of the UZ’ effect on water and contaminants transfers and pesticide degradation: deeper water table has fewer contaminants; clay-with-flints promotes pesticide degradation by creating a perched sheet in the near surface; clay-with-flints accelerates the transfer of water and contaminants through preferential paths
Jasso, Salcedo Alma Berenice. "Synthèse et mise en oeuvre de nanocomposites à base d’oxyde de zinc utilisés pour le traitement photocatalytique de l’eau contaminée par des disrupteurs endocriniens." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0297/document.
Full textThe present work concerns photodegradation of water contaminants using ZnO-based catalysts. The first step consisted in designing a new catalytic system by functionalizing ZnO with silver nanoparticles. Two methods were used: photodeposition and impregnation of silver nanoparticles (AgNPs) on ZnO. The photocatalytic activity of the resulting catalyst towards the degradation of bisphenol-A, triclosan and rhodamine-B was studied. The effect of pH, photocatalyst and contaminant concentrations and wavelength, on bisphenol-A degradation was studied and the kinetic rate constant was determined. The optimization showed that a low silver content and an alkaline pH, during both functionalization of ZnO and photodegradation, maximized the kinetic rate constant of bisphenol-A degradation. A model also predicted that Ag/ZnO obtained by photodeposition showed higher photocatalytic activity that of Ag/ZnO obtained by impregnation.On the other hand, to overcome aggregation problems, Ag/ZnO were immobilized owing to their incorporation in a cross-linked poly(acrylic acid) matrix . The surface of Ag/ZnO was previously modified, using a silane coupling agentwhich allowed (i) dispersing and anchoring NPs on the polyacrylic matrix by formation ester bonds (ii) promoting crystallization of the polymer. The composites were successfully tested under UV light with an efficiency comparable to that of non-immobilized NPs. The immobilization provides additional advantages e.g. hindrance of catalyst photocorrosion and possible use of the composite in continuous mode
Suaire, Rémi. "Dynamique de transfert des fondants routiers dans un bassin de rétention des eaux de ruissellement routières : vers une solution d’assainissement par phytoremédiation." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0116/document.
Full textDuring winter, deicing salts are spread on roads in order to preserve road safety for users. Under the influence of different parameters, these compounds are partly transferred to the environment, the rest of it being collected by the road runoff retention systems. However, road runoff retention ponds have not been designed for deicing salt treatment; they only play a role in the regulation of fluxes before their rejection into the environment. Furthermore, NaCl has a harmful impact on the environment, because of its toxicity to certain aquatic organisms and because it contributes to the increase of trace metal (TM) mobility, which are toxic as well. This shows the need for a specific treatment for these compounds. The objective of this research is to bring better understanding of deicing salt dynamics in a retention pond, but also to investigate the potential use of phytoremediation as a treatment solution for road runoff. A model retention pond was selected; it is located along a highway in Chenevières (Lorraine region, France). The first part of the work focused on the monitoring and the characterization of NaCl transfers in this pond. Water was weekly sampled for 3 years at the pond input and output and NaCl and TM concentrations were measured. Meteorological conditions and salt spreading data were monitored to appraise the salt fraction actually collected by the pond. Results showed that only 25 to 50 % of the spread salt is effectively collected. Moreover, results on NaCl dynamics proved that the pond only plays a role on transient storage and salt dilution before rejection into the environment. Moreover, measurements and analyses of sampled basin sediments and roadside soils were performed to assess speciation and TM mobility in this particular context. In this case, no significant effect of NaCl was recorded except for zinc (Zn); but major ions were mobilized. When it comes to treatments, conventional desalination technologies are too expensive and inappropriate in this context. Then, potentialities of phytodesalination were explored. Three halophyte plants were selected on the basis of specific criteria, allowing their use in road runoff context: Armeria maritima, Atriplex halimus and Atriplex hortensis L. Germination and growth experiments were run in various salinity conditions and in the presence/absence of Zn, in order to assess their tolerance to salt and Zn, as well as their accumulation abilities. These plants showed a high tolerance for NaCl in salinities in the range of those encountered in road runoff existing treatment systems at Chenevières. The three species accumulated significant amounts of NaCl and zinc in their aerial parts. The use of halophytes for phytodesalination of road runoff is a promising technique to address the issue of environmental impact of deicing salts
Al-Juhaishi, Mohammed. "Caractérisation et impact de la pollution dans les rejets urbains par temps de pluie (RUTP) sur des bassins versants de l'agglomération Orléanaise." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2021/document.
Full textThe objective of this thesis was to characterize urban runoff water at the level of stormwater outletson three major urban sub-basins of the Orléans agglomeration, covering land areas ranging in size from463 to 2257 ha and with contrasted land use. 11 individual rain events were sampled at runoff outletsbetween April 2015 and June 2017 and 10 campaigns were also carried out in dry weather.In general, it was observed that the conductivity, chemical oxygen demand (COD), biochemicaloxygen demand (BOD5 and BOD28), dissolved organic carbon (DOC), total nitrogen (NT), anions andmajor cations were found to be higher in dry weather conditions than in rainy weather. These resultsindicate a dilution effect due to precipitation.A mixture of rainwater and wastewater was also identified in the sub-basin of Ormes. Land use andhuman activities in the sub-basin studied were found to significantly influence the quality of the resultedrunoff from rainfall events. For example, in the Egouttier sub-basin 2, the presence of a large imperviouszone (industrial and residential, 40% of the surface area) was responsible for an increase in the parametersBOD5, BOD28, COD and NT.The flows at the outlets of the different water quality parameters were evaluated and compared withthose from the four main wastewater treatment plants (WWTP) and those from the Loire. The estimatedloads of the three sub-urban basins accounts for approximately 166.61% of the load of the four WWTP.The three sub-basins have a small impact on the Loire in terms of annual flows (about 1.62% for wetweather case).Two versions of a conceptual model of accumulation / washoff were evaluated to estimate pollutantrunoff; the classical version and a modified version in which the pollutant accumulation parameter has alogarithmic form. The performances of the models were found acceptable for the MES and the COD. TheNash-Sutcliffe (NS) coefficients were found as 0.84 and 0.85 for the two versions at the Egouttier subbasin.For trace elements in particulate phase, the correlation with the experimental measured value wasfound good as well. In general, when a measured flow was less than 1 kg.ha-1, the modified model was nolonger applicable.The first simulation tests of the quality and quantity of urban runoff were carried out with MIKEURBAN, which equips both MOUSE and SWMM modeling software. For water quantity, the hydrographsindicated that the maximum flow obtained with SWMM was always lower than that obtained with MOUSE.For water quality, TSS mass was still more strongly impacted by the leaching of TSS in the MOUSE modelthan in the SWMM model.This work can be considered as the first step of the evaluation work of RUTP for the Orléansagglomeration. It provides a solid foundation for a future monitoring program
Mainvis, Aymeric. "Modélisation et mesure de l’interaction d’une onde électromagnétique avec une surface océanique. Application à la détection et à la caractérisation radar de films d’hydrocarbures." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0032/document.
Full textSatellites or airborne systems currently used for the detection and characterization of oil slicks on sea surface are based on optical or radar means. These means have a lack of performance due to a too high frequency of false alarms or to an excessively long data processing time. The methods for detecting, identifying and quantifying offshore pollutant can therefore be improved by combining robustness and reactivity. This improvement implies an in-depth understanding of the oceanographic and electromagnetic phenomena at work in this particular scene. The thesis is based on data gathering aerial and satellite images and SAR as well as measurements carried out in laboratory. This dataset makes it possible to check the consistency of the results obtained by modeling. The objective of the thesis is to distinguish a polluted sea surface from a clean sea surface using the electromagnetic signature of the total surface and then to detail the type and quantity of pollutant. The thesis is divided into two domains, namely oceanographic modeling and electromagnetic modeling. Oceanographic modeling integrates the simulation of the rough surface imitating a clean or polluted sea surface. This sea surface must be generated over a large area with a thin resolution. The electromagnetic part is centered on the asymptotic models for the electromagnetic waves diffraction by a rough interface. These models are adapted to the context of the thesis, the complexity of the scene and the speed of processing, but require several hypotheses to be applied
Al, Maksoud Walid. "Des matériaux hybrides pour le captage de bio-toxiques : Par greffage des poly-aromatiques obtenus via une méthodologie palladocatalysées in et ex-aqua. Par greffage des molécules poly-azotées." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00845468.
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