WorldCat Identities

LAEPSI - Laboratoire d'Analyse Environnementale des Procédés et Systèmes Industriels (Lyon, INSA)

Overview
Works: 90 works in 137 publications in 1 language and 156 library holdings
Roles: Other, Degree grantor, 981
Publication Timeline
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Most widely held works by INSA) LAEPSI - Laboratoire d'Analyse Environnementale des Procédés et Systèmes Industriels (Lyon
Intérêt d'un simulateur pédagogique de conduite de projet pour l'analyse de modelés hydrodynamiques : application à un projet de dépollution = nterest of a water management simulation program for the study of hydrodynamics models : groundwater pollution case study by François Baillon( Book )

3 editions published between 1999 and 2013 in French and held by 6 WorldCat member libraries worldwide

The achievement of a new project management education simulation program concerning a underground water cleaning-up case study, allowed us to perform simulation sessions for eight teams of students. Considering simulation results, the validation of credibility and functionality criteria concerning this new simulator Amise, indicates that the students have generated relevant cleaning-up scenarios consistent with the real case study. The simulation program can then be considered as a relevant tool to study the behaviour of its components in a project management context, especially the simplified ground water model. To verify that a ground water model is appropriate to the project needs, we introduce two evaluation criteria : the modelling quality and the input knowledge. The input knowledge is considered as a precision and quantity indicator of the model input data. For each simplified ground water model achieved by the students during simulation sessions, these criteria are quantified through an analytical hierarchy process. Using these values, we represent, on a graph, the evolution of the modelling quality of the underground model used in the simulation program according to the knowledge input in the model by the students. On this graph, we can define three areas characteristic of the impact that can have the input knowledge on the modelling quality. Considering the insufficient number of available simulation sessions results, we can not yet confrrm the validity of this graph. However, this study allows to verify the coherence of this approach as a method to analyse a model using a project management education simulation program
Systèmes d'aide à la décision pour le traitement des déchets industriels spéciaux by Bruno Debray( Book )

2 editions published in 1997 in French and held by 5 WorldCat member libraries worldwide

Les déchets industriels spéciaux constituent une source potentielle de pollution importante. A ce titre il est nécessaire de les traiter en vue d'aboutir soit à une valorisation soit à un rejet éco-compatible et au stockage d'un déchet ultime. La mise en oeuvre pratique de ces traitements fait intervenir une grande variété de filières et de procédés suivant la nature et les caractéristiques du déchet. Le choix d'une solution de traitement est une opération délicate qui implique la connaissance de toutes les options disponibles et de leurs critères de choix. Pour aider les producteurs de déchets, nous avons identifié dans deux contextes différents, les raisonnements et les données qui permettent d'aboutir à la liste des solutions applicables : centres et flilières de traitement dans le cas du traitement externe, procédés de traitement et position dans l'unité productrice du déchet pour le traitement interne. Ce travail méthodologique, dont l'objectif est la proposition d'outils pour aider les industriels dans le choix des solutions de traitement, a débouché sur deux systèmes informatiques d'aide à la décision : le premier pour l'orientation des déchets spéciaux vers des solutions externes de traitement ; le second pour l'identification de solutions de traitement interne pour les ateliers de traitement de surface. A travers le développement de ces outils, nous avons pu mettre en évidence l'importance des systèmes d'identification et de caractérisation des déchets et proposer une méthode générale pour l'identification de solutions de traitement
Contribution à la méthodologie d'intégration de l'environnement dans les PME-PMI : évaluations des performances environnementales = ontribution to the methodology of environment integration in SMEs : environmental performance evaluation by Marion Personne( Book )

2 editions published in 1998 in French and held by 3 WorldCat member libraries worldwide

We have studied electro-optical properties of both wurtzite and zinc-blende gallium nitride (GaN), which is, presently, the most promising material for blue light emitting diodes applications. Samples characterized in this study are epitaxial layers deposited on different substrates with large mismatch of lattice parameter and thermal expansion coefficient. First, the intrinsic-optical material properties are studied by photoluminescence and photoreflectance. The evolution of excitonic recombination energies with both residual strain and temperature is observed. Moreover, the effect of a high doping level on band edge transitions is shown. Particularly, we evidenced an auto-compensation phenomenon in highly silicon-doped layers. In a second part, we studied defect-related photoluminescence transitions, which are correlated with sample growth conditions or doping. In undoped or magnesium doped layers, similarities between deep luminescence bands in zinc-blende and in wurtzite GaN are shown. Using these results, we analyse p-n GaN junction electroluminescence of both polytypes. The third part is devoted to electrical studies of hexagonal phase GaN Shottky diodes and p-n junctions. We analyse current-conduction mechanisms, and evidence several deep levels in GaN bandgap, which may be involved in radiative recombination mechanism. Our results allow a better understanding of electrical conduction and radiative recombination mechanisms in GaN-based optoelectronic devices, and a forecast of the influence of material growth conditions on the device performance
Prédiction du comportement environnemental des résidus de procédés thermiques (RPT) utilisés comme matériaux de travaux publics = nvironmental behaviour prediction of thermal processes residues (TPR) used like public works materials by Zolalaina Rakotoarisoa( Book )

2 editions published in 2003 in French and held by 3 WorldCat member libraries worldwide

Cette étude vise, d'une part, à la mise en place d'outils méthodologiques (tests, modèles de prédiction) pour l'évaluation du comportement environnemental de déchets/ matériaux poreux dans des scénarios percolants, et à l'évaluation du comportement environnemental de deux cendres volantes de charbon en scénario remblai, d'autre part. Une méthodologie d'évaluation du comportement à la lixiviation à long terme, en scénario percolant est proposée. Elle est réalisée à travers une caractérisation physico-chimique du déchet (composition chimique et minéralogique, l'étude de la cinétique de dissolution, de l'influence du pH sur la solubilisation des espèces, l'effet du ratio L/S) et à l'identification des divers mécanismes de transfert des polluants à l'aide d'essais de lixiviation à l'échelle du laboratoire et pilote de terrain (essais de percolation en colonne de laboratoire, essais de traçage pour connaître l'hydrologie sur le terrain). La prévision du comportement en scénario s'appuie sur des modèles minéralogiques (géochimiques), des modèles de transfert de matière à l'échelle du laboratoire et du terrain, et un couplage performant géochimie-transport. La validation des hypothèses d'évolution du matériau et des modèles de comportement a été réalisée à travers l'étude d'un lysimètres de cendres compactées
Contribution à l'élaboration d'un outil d'aide à la décision multicritère pour la mise en place de la politique environnementale des collectivités locales = Contribution to the achievement of a multicriteria decision aid tool for the stating of local communities environmental policy by Charlotte Hugrel( Book )

2 editions published in 1998 in French and held by 3 WorldCat member libraries worldwide

The purpose of this research is to contribute to the achievement of a multicriteria decision aid tool for the stating of local communities environmental policy. The procedure finally proposed allows local communities to identify their goals regarding specific environmental stakes of their own territory along with the stakes related to other territories and future generations. A general characterization of environmental problems is done through the concept of use conflicts. The environment state assessment criteria are based on an analysis of environmental uses. This allows: - to work out the list of locally relevant criteria in close collaboration with the population, - to give intelligible results that make each citizen enable to express his own point of view with full knowledge of the facts on the community environmental priorities. Some elements of the procedure are illustrated with the case of water and air on the area of the urban community of Lyon
Etude de faisabilité de l'utilisation de molécules "cage" dans la dépollution des sols : solubilisation et extraction de polluants organiques par les cyclodextrines = Feasibility study of the application of complexing agents in soil flushing decontamination : enhancement solubilization and extraction of organic pollutants by cyclodextrins by Khalil Hanna( )

2 editions published in 2004 in French and held by 3 WorldCat member libraries worldwide

Soil matrices contaminated with polycyclic aromatic hydrocarbons (PAHs) abound at the sites of coke-oven gas plants, refineries, and many other major chemical industries. The problem of soil pollution has been widely recognised in recent years. The removal of PAHs from soil using pure water, via soil washing, is quite ineffective due to their low solubility and hydrophobicity. However, addition of cyclodextrin (CD) has been shown to increase the removal efficiency several fold. Herein are investigated the effectiveness of cyclodextrin to solubilise and to remove PAH occurring in industrially contaminated soil. The interactions in the cyclodextrin/pollutant/soil system have been studied “step by step”. The objective was to use a CD solution for soil flushing in column test in lab and to evaluate the influencing parameters that can significantly increase the removal efficiency. The process parameters chosen were CD concentration, ratio of washing solution volume to soil weight, and temperature of washing solution. These parameters were found to have a significant effect on PAH removal from the contaminated soil except the temperature where no significant enhancement in PAH extraction was observed for temperature range from 5 to 35 °C. Column experiments were also carried out to study the kinetics of PAH release from an aged-contaminated soil using three types of CD. The extraction results indicate that removal capacity of HPCD and MCD was higher than that of BCD. With 10% MCD solution, an extraction of about 40% of Phenanthrene on soil was observed, whereas only 0.2% was removed when water was used as the flushing solution
Contribution à l'élaboration d'une méthodologie de construction d'indicateurs du développement durable a usage des industries = Contribution to the development of a methodology for constructing sustainable development indicators for industrial use by Sandrine Lagarde-Dupraz( Book )

2 editions published in 1998 in French and held by 3 WorldCat member libraries worldwide

The Sustainable Development (SD) is a concept that came out in 1987 in the Brundltand Report and was developed by the 1992 Earth Summit in Rio de Janeiro. This concept seeks to conciliate economic prosperity, social development and environmental protection. After presenting the state of the art of international initiatives for SD in the industrial and institutional sectors, this study attempts to analyze• and understand how businesses; as agents of development in our societies, can progressively integrate SD into their operations in coordination with other local, national and international stakeholders. An answer is given in this thesis in the form of a contribution to the development of a methodology for constructing SD indicators for industrial use. This methodology is based on a participatory and coordinated approach. Useful tools and a charter of SD have been produced to complement the methodology
Identification des facteurs mobilisateurs des stratégies de gestion des déchets ménagers mises en oeuvre par les collectivités locales by Karine Sperandio( Book )

3 editions published in 2001 in French and held by 3 WorldCat member libraries worldwide

The aim of this thesis is to underscore the mobilizing factors of management strategies implemented by local authorities for household waste. These factors can be identified in the present context of the law of July, 13th 1992 and of its “2002” objective. Indeed, so as to respect this objective, the local authorities have been given ten years to carry out new management strategies for waste. It is shown in this thesis that the mobilizing factors can be viewed in technical, economical, statutory, but also socio-political terms: political and administrative organization of authorities and social acceptability of the processing techniques implemented. It is assumed in the thesis that the 1992 law may not be respected by most authorities insofar as it has been integrated enough in the “territorial” parameter. Soon after the 1992 law, some though that the intercom municipal links would be the obvious political and administrative response from authorities to the technical choice of incineration. It seems to use that, because of the territorial organization and the running of local authorities, the gigantic scale of the processing installation is at present doomed. The authorities chose to turn more towards medium size installations. Finally, the strong concerns of populations in terms of public health might condemn some waste processing channels for a new years. The whole political approach to waste will have to rethought. Instead of imposing drastic recovering objectives which are the same for all, one should first decentralize the waste policy at the local level, and secondly go for a real public control of the waste processing service. In our opinion, the prospects of the management strategies for household waste at first lead to a miniaturization of the processing installations network. This miniaturization rests on the most reassuring channels in terms of public health risks. Within this context, intercom municipal links would be better accepted and thus more effective
Analyse de cycle de vie des filières de traitement des sites industriels pollues = Life cycle assessment of technical options for the treatment of polluted sites by Armelle Blanc( Book )

2 editions published in 1999 in French and held by 3 WorldCat member libraries worldwide

La gestion des sites industriels pollués constitue aujourd'hui un enjeu important. De points noirs isolés, les sites industriels pollués sont devenus l'objet d'une politique nationale. Le choix des objectifs de traitement d'un site et des techniques de traitement appropriées nécessite la prise en compte d'un grand nombre de critères parfois conflictuels, sur le plan environnemental notamment. Mais le cas des sites industriels pollués est surtout emblématique du double processus d'appropriation-désappropriation qui accompagne nos activités techniques. Le site pollué est une forme de « désappropriation » héritée des activités passées. Le traitement, s'il permet une « réappropriation » du site, implique en contrepartie une exploitation des ressources naturelles lors de sa mise en œuvre. Il est aujourd'hui nécessaire de disposer de méthodes susceptibles de contrôler ce phénomène d'appropriation-désappropriation. L'ACY, dont l'objectif est d'évaluer l'ensemble des impacts environnementaux liés au cycle de vie d'un produit ou d'un service paraît a priori adéquate. Mais une analyse critique plus précise de cette méthode montre qu'elle ne permet pas d'évaluer les impacts environnementaux des systèmes techniques. Après avoir levé ce que nous appelons le paradoxe de l'ACY, nous en proposons une nouvelle lecture et montrons qu'elle constitue un outil d'amélioration de la productivité des ressources naturelles et qu'en ce sens elle peut être utilisée dans une procédure plus générale de contrôle des techniques. Enfin, afin d'illustrer notre propos, nous concluons par une application de l'ACY au choix d'une technique de traitement d'un site pollué par du soufre
Les métaux traces dans le clinker de ciment Portland : rétention dans les mortiers et fixation dans les hydrates = race metals in Portland cement clinker : retention in mortars and bounding in cement hydrates by Ivan Serclerat( Book )

2 editions published in 1996 in French and held by 3 WorldCat member libraries worldwide

This work aimed to assess the retention in the mortars of the heavy metals fed in a cement kiln with natural raw material, fossil fuels or waste derived fuels. Industrial cement has been studied, along with laboratory samples enriched during clinkering in lead, zinc and chromium. The relevant mortars were tested for metal release through leaching studies in various chemical contexts. Zinc appeared to be insoluble in the pH range 7-13. Lead is released only in alcaline medium above pH 12.5. Hexavalent chromium whose salts are usually very soluble, is though retained in a hydrated phase that is stable in the chemical environment ensured by the cement matrix. Lead and chromium released are linked to the metal levels in the mortars. The solubility of the solid phases, in the chemical context of the pore fluid at the solid/liquid interface, appeared to be controlling the leaching rate of the metallic compounds. Fixation mechanisms of the heavy metals in the cement hydrates has been explored through the monitoring of the metal concentration in the liquid phase during cement hydration Chromate was found to substitute for sulfate in the ettringite crystal. The solubility studies of a chromate+sulfate ettringite revealed that chromium release is linked to its proportion in the crystal. A selective dissolution of the chromium part of ettringite has been pointed out. This Ieads to a lowering of the chromium level in such a solid contacted with water. These results improved the understanding of the release mechanisms of chromium by the mortar blocks
Contribution à la modélisation de la satisfaction client par la logique floue = ontribution to modelling of satisfaction with fuzzy logic by Alain Jouandeau( Book )

2 editions published in 2004 in French and held by 3 WorldCat member libraries worldwide

Satisfaction barometer is necessary to quality. We present some models (economic, psychological) and describe theories, which support our work (social representations and fuzzy logic) before describing the model, which will be used for building a barometer. Analysis of "vague" allows proving that the fuzzy logic is the most adapted for this kind of modelling. In these conditions, we will use the REMODSET method. The membership functions are obtained with the social representation of the expressions. Membership functions of the expression are obtained from their social representation and then to aggregate the answers to the questions to obtain a global evaluation, which, after defuzzification, will be understandable in clear language. The comparison with a standard barometer (standard statistics) allows verifying the coherence between the two methods. The fuzzy logic allows the treatment of one single questionnaire and to use the "I don't know" evaluation
Etude de la lixiviation de milieux poreux contenant des espèces solubles : application au cas des déchets solidifiés par liants hydrauliques = eaching of porous media containing soluble species : Application to concrete stabilized wastes by Florence Sanchez( Book )

2 editions published in 1996 in French and held by 3 WorldCat member libraries worldwide

This research, whose aim is the environmental assessment of stabilized wastes, is focused on the study of the transfer of the pollutants contained in solidified wastes in contact with water, and on the development of an interpretation and a simulation model. The leaching behaviour of lead and arsenic solidified in a cement matrix (Ordinary Portland Cement - OPC) was studied in different physico-chemical contexts. The set of results obtained have shown that the release of pollutants is controlled by the solubility of chemical species in the pore water and the pH evolution within the matrix, especially at the solid/liquid interface; it is necessary to take into account the coupling of chemical and transport phenomena. A coupled dissolution/diffusion model has been developed to describe the release of soluble chemical species contained in a stable porous matrix in contact with water. The model was applied to the case of a porous matrix containing two components, calcium hydroxide and lead hydroxide (typical case of an OPC solidified waste containing lead). In order to valid the model a specific experimental approach has been developed: it consists of studying the leaching of an artificial porous matrix. This medium is obtained by "sintering" a glass powder, lime and pollutants mixture. Different simulations were carried out and compared to the results obtained from leaching, in demineralized water, of cement matrixes containing lead. Simulations have shown that the release of lead is controlled by a solubilisation phenomenon at the solid/liquid interface. In this case, a model taking into account pH evolution at the solid/liquid interface and variable solubility of lead according to this pH allows to represent phenomena
Comportement dans le sol de polluants aromatiques issus du goudron de houille : Etude du partage goudron/eau et de l'effet du vieillissement sur la mobilité des polluants = Study of the behavior, in soils, of coal tar aromatic pollutants : Study of tar/water partitioning and the effect of ageing on the pollutant mobility by Borhane Mahjoub( Book )

2 editions published in 1999 in French and held by 3 WorldCat member libraries worldwide

L'ensemble des pays industrialisés comptent sur leurs territoires de nombreux sites potentiellement pollués par le goudron de houille. A long terme, la mobilité des polluants dans le sol est principalement contrôlée par la dissolution dans l'eau des composés du goudron ainsi que par les phénomènes d'adsorption 1 désorption et de biodégradation de ces polluants dans le sol. Trois polluants modèles ainsi que plusieurs fractions de sols et des sols de référence ont été sélectionnés lors de notre étude qui s'est déroulée en 2 principales étapes: - Etude des équilibres et des cinétiques de partage des polluants organiques entre le goudron de houille et l'eau -Etude de l'adsorption et de la désorption des polluants organiques dans le sol, en considérant les cinétiques de transfert à court et à long terme. Les résultats expérimentaux nous montrent que le goudron de houille ne possède pas un comportement idéal décrit par la loi de Raoult. Les principaux mécanismes de transfert goudron/eau identifiés sont la solubilisation quasi-instantanée des polluants proches de l'interface PLA/eau, et la diffusion lente des polluants au sein de la PLNA et à l'interface. Les résultats montrent de plus que plusieurs facteurs peuvent modifier la vitesse et l'ampleur du relargage (température, pH, force ionique, vieillissement de l'interface ...). Les résultats de la seconde partie de l'étude montrent une diminution de la mobilité des polluants avec l'augmentation de la durée de contact polluant/sol. Nous avons de plus observé que la succession des cycles de gel/dégel tendait à limiter l'effet du vieillissement. La rétention à cinétique lente du polluant par le sol ou l'argile est très probablement due à la lente diffusion moléculaire au sein des micropores des agrégats ou bien au sein de la matière organique du sol
Etude de la distillation homoazéotropique et extractive discontinue = Study of batch homoazeotropic and extractive distillation by Zoltán Lelkes( Book )

2 editions published in 1998 in French and held by 2 WorldCat member libraries worldwide

The distillation is a process which is very frequently used in the industry for the separation of liquid mixtures. The extractive distillation is a special method applied for the separation of mixtures which cannot be efficiently separated by conventional distillation. The batch extractive distillation is a new process involving four steps in a batch rectifier. In this work the role of each of these steps was analyzed and studied. A simple new method was developed for the assessment of the feasibility of the batch extractive distillation by calculating the feasible composition profiles and figuring them in the triangular diagram on the residue curve map for the different steps. Hence the feasible regions where the separation is possible and the limiting values of the operational parameters were determined. In order to increase the effectiveness of the process several operational policies were elaborated and studied first by simulation then experimentally in a pilot-plant column with the mixture acetone-methanol using water as solvent. The experimental and calculated results were in good agreement. By these new policies the operation became more efficient and the energy consumption was considerably reduced. The feasibility of another version of the process (inverse batch extractive distillation) in a batch rectifier was also studied
Etude des propriétés épuratoires des Mâchefers d'Incinération d'Ordures Ménagères et de leur mise en oeuvre = Study of purification potential of bottom ashes : Full scale dimensioning and the validation for in situ biogas treatment by Daniela Radu Tirnoveanu( Book )

2 editions published in 2004 in French and held by 2 WorldCat member libraries worldwide

The evolution of our societies, and specifically the associated trends in consumer consumption, have led to a continual increase in waste production, and particularly household waste. Despite a strong political will to develop source separation and recycling of household waste, the majority of this waste stream is disposed of by two main techniques : storage in engineered landfills and incineration. Storage in anaerobic conditions, leads to the formation of landfill biogas which contains sufficient methane for combustion and energy recovery, but also contains compounds (sulphides, volatile organic compounds) in trace amounts which produce olfactory nuisances and are corrosive, aggressive and hazardous to the environment. As for incineration, it produces solid wastes and in particular bottom ash which needs to be stored or reused after treatment. Our study focuses on a new way of reusing incinerator bottom ash, notably for the purification of landfill biogas. As part of this study, a pilot test unit was developed and operated at the Roche la Molière engineered landfill (department 42). The purification potential of bottom ash from the North-Lyon (department 69) incineration plant was tested on real landfill biogas using this pilot test unit. The gas phase chromatography analysis was mainly used to measure sulphur based compounds (hydrogen sulfide and mercaptans), but was also used to measure the main volatile organic compounds. Thermal desorption studies were also completed in the laboratory. The results show that the incinerator bottom ash presents significant purification potential and in particular with regards to the sulphur compounds which are mineralised by way of chemical reactions. The quantification of the purification potential of the incinerator bottom ash allowed for full scale dimensioning and the validation of their use directly within the landfill for in situ biogas treatment
Caractérisation de la mobilisation potentielle de l'arsenic et d'autres constituants inorganiques présents dans les sols issus d'un site minier aurifère Characterization of arsenic and other inorganic constituents potential mobilization from soils collected from a gold mining site by Vincent Chatain( )

1 edition published in 2005 in French and held by 2 WorldCat member libraries worldwide

Initiated by the doctoral thesis of Claire Blanchard defended in 2000 and by a contractual research program within the framework "polluted soils and sites" between the Association RE.CO.R.D. (Waste Research Cooperative Network, France), and the the L.A.E.P.S.I. (Laboratory of Environmental Evaluation of Industrial Systems and Processes), various complementary methodological tools, based on the use of leaching tests, were developed and carried out, in order to characterize the potential mobilization of arsenic and other inorganic constituents from soils, collected from a gold mining site.Main results shown in this study indicate that arsenic release during contact with deionized water is limited by its very low solubility in the interstitial solution and by the stability of the amorphous solid phases present (mainly arsenate iron (oxy)hydroxides). However, a potential mobilization risk exists over the long term under specific leaching conditions (i.e., pH or redox gradient ...) which can arise in given management scenarios of a contaminated site.Indeed, a significant increase in arsenic mobilization was observed in extremely acidic and alkaline conditions for the selected soils, wich have shown a low buffering capacity. Reductive conditions, either chemically (with the addition of sodium ascorbate or sodium borhydride) or biologically (using appropriate stimulation of the indigenous bacterial activity under anaerobic conditions) induced; also reveal the possibility of a partial arsenic mobilization
Evaluation environnementale des perspectives de valorisation en BTP de scories de première fusion de plomb et de zinc uality assessment of construction materials containing primary lead and zinc slags by Caroline Gervais( )

1 edition published in 1999 in French and held by 2 WorldCat member libraries worldwide

Cette recherche s'inscrit dans la problématique de l'évaluation environnementale de matériaux poreux de BTP contenant des déchets. Le cas de deux scories de première fusion de plomb et de zinc, utilisées en substitut partiel au sable dans trois matériaux (béton, sable-ciment et sable-bitume) a été étudié. La méthodologie utilisée, basée sur la prénorme ENV 12-920, prend en compte les propriétés du matériau et les conditions du scénario, elle a 4 niveaux: (1) description du scénario (2) détermination de l'influence des paramétres pertinents sur le comportement à la lixiviation du matériau (3) description de modèles de comportement environnemental (4) validation in situ des modèles. De manière générale, le relargage du plomb et du zinc des scories contenues dans les matériaux étudiés, est fortement liée à l'évolution du pH près de l'interface, celui-ci étant le résultat des interactions matériau-scénario
Gestion et traitement des dechets menagers dans les pays en voie de developpement : etude du cas de la ville d'Antananarivo (Madagascar) by Hery Rajaomanana( Book )

2 editions published in 1996 in French and held by 2 WorldCat member libraries worldwide

Une évaluation, à partir de la littérature, des situations de différents pays en voie de développement et matière de gestion et traitement des déchets ménagers est effectuée. Les aspects caractéristiques de la gestion et du traitement des déchets - collecte, récupération, mise en décharge, compostage, méthanisation - sont étudiés. Les aspects techniques et économiques sont mis en exergue ainsi que les considérations théoriques en matière de dégradation anaérobie et aérobie. Tous ces aspects sont repris pour le cas de la ville d'Antananarivo - Madagascar. Au plan scientifique et technique, des essais comparatifs de méthanisation en discontinu et en continu ont été effectués au laboratoire sur des déchets français, hollandais issus de collectes sélectives et sur les fractions fines des déchets d'Antananarivo. De plus, des essais de compostage sur des déchets d'Antananarivo ont été effectués et une nouvelle technique dénommée AGRISAC a été étudiée sur le pian lie l'efficacité et du rendement de l'élimination des déchets. Résultant de ces travaux, un schéma de traitement général est finalement proposé. Il comprend une chaine criblage-tri-compostage/méthanisation avec valorisation des différentes fractions par recyclage, récupération. Les installations proposées sont de faible taille et ne prennent en compte que le traitement de faibles quantités de déchets, le premier souci étant d'alléger la tâche de la commune pour la collecte. Le traitement de la totalité des déchets consiste en la multiplication de ces petites unités suivant leur viabilité économique
Entre ACV et étude d'impact : synthèse et développements méthodologiques = Between LCA and impact assessment : synthesis and methodological development by Ratib Chaabane( Book )

2 editions published in 1998 in French and held by 2 WorldCat member libraries worldwide

After a critical study of the different LCA methods, it is shown that their realization must without doubt be computerized and appeal to the consequent conceptual revisions. Especially, it is essential to face up to the functional unit practice and to differently conceive the contributions of multi-criteria analysis to LCA. Concerning methodology, one has been induced to develop a new indication of raw materials losses, to give a new approach to the ecotoxical characterization by taking local specificity into account and to erase traditional differentiation between impact study and LCA. Thus, one tends to the final idea of comparative Impacts studies of life cycle, which probability may drive to the realization of risks impacts assessment of product life cycles
Caractérisation physico-chimique et valorisation en bâtiment et travaux publics des cendres issues de l'incinération des boues de papeterie = hysico-chemical characterisation and valorization in the public works and building trade of ashes resulting from the incineration of paper mill sludges by Dounya Elayadi( Book )

2 editions published in 2005 in French and held by 2 WorldCat member libraries worldwide

The Production of the considerable quantities of paper sludges mainly resulting from the operations of de-inking and waste water treatments encourages the industrialists and the authorities to develop new ways of valorization. Accordingly, the valorization of paper sludges in the public works and building trade to partially substitue the cement is the objective of this work. The methodology adopted in order to appreciate the relevance of this way comprises several stages. The first is the characterization of the physico-chemical properties of rough waste. Then two studies undertaken in parallel follow, but from which the goals are different: a technological study, in ordre to evaluate the influence of waste on the mechanical properties of building materials, and an environmental study, concerning the quantification of the impact of waste on the environment. The results of the selected tests of leaching (CNA and TLM) made it possible to feed the parameters of entry of the physico-chemical models and transfer of matter for the simulation of the leaching behaviour. The consistency between the experimental and simulated results proves that the geochemical models and the coupling geochemistry-transport describe well the release out of the chemical species contained in materials. Geochemical and coupled modelling geochemistry-transport confirmed that the leaching of the mortars containing paper sludges calcined at 700°C is similar with that of a "common" mortar of stabilized material
 
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Alternative Names
INSA. Laboratoire

Laboratoire d'Analyse Environnementale des Procédés et Systèmes Industriels

LAEPSI

Languages
French (40)