L'hydrogène à travers de l'utilisation des piles à combustible (PAC), est de plus en plus considéré comme une option énergétique possible au secteur des transports grâce à ces caractéristiques fonctionnelles. Cependant, la technologie liée à la mise en œuvre de véhicules alimentés par une pile à combustible n'a pas encore atteint le niveau de maturité requis. Ainsi, ce travail propose de traiter certaines de ces limitations qui existent encore. Plus précisément, trois thèmes représentent les objectifs de ce travail : Le dimensionnement optimal des éléments présents dans un véhicule hybride à pile à combustible. La gestion d'énergie optimale pour les applications en temps réel et intégrant les contraintes dynamiques du système PAC. Inclusion de la durabilité de la pile à combustible dans la gestion d'énergie du véhicule. Le premier thème est abordé à travers l'élaboration d'une méthodologie de dimensionnement adapté à un véhicule hybride à la pile à combustible. Dans une approche systématique, le dimensionnement proposé combine les exigences de performance présente dans les spécifications techniques du véhicule, les algorithmes d'optimisation, l'analyse de la mobilité de la population et la viabilité économique de la conception. Le deuxième objectif établi a été développé à l'aide d'une approche d'optimisation de la répartition de puissance entre la batterie et le système PAC. Par l'adoption d'une méthode d'optimisation globale combinée à une stratégie de commande prédictive et l'inclusion de la dynamique du système PAC, un algorithme de gestion d'énergie pour des applications de temps réel a été conçu. Enfin, la durabilité de la pile à combustible a été incluse dans ce travail par l'intégration de sa dynamique de dégradation dans le problème d'optimisation lié à la gestion d'énergie. Cette dynamique représente une contrainte à prendre en considération lors de la répartition de puissance entre le système PAC et la batterie. / The hydrogen, through the use of fuel cell stacks (FC), has been increasily considered as an energy possible option for the transport sector. Nevertheless, the technology related to its implementation in fuel cell vehicles has not reached the required maturity level. Therefore, this work intends to deal some of these existing limitations. More precisely, three topics represent the objectives of this work: The optimal sizing of the element present in the fuel cell hybrid vehicle. The development of an optimal energy management strategy oriented for real time applications and including the dynamic constraints of the FC system. The inclusion of the fuel cell durability in the vehicle energy management strategy. The first topic is tackled by the development of a sizing methodology adapted to the fuel cell hybrid vehicle application. Using a systematic approach, the proposed sizing method combine the performance requirements present in the vehicle's technical specifications, optimization algorithms, population mobility behavior and the economic viability of the design. The second assigned objective was developed using an optimization approach for the power split between the battery and the FC system. Through the adoption of a global optimization method allied with a predictive control strategy and the inclusion of the FC system dynamics, it was created an energy management algorithm oriented for real time applications. Finally, the fuel cell durability was included in this work by the integration of its degradation dynamics in the optimization problem, which is related to the vehicle's energy management. Such dynamic represents a constraint that should be taken into account in the power sharing between the FC system and battery

Cette thèse porte sur la modélisation des piles à combustible à membrane d'échange de protons (PEMFC), en vue de leur surveillance et de leur diagnostic par spectroscopie d'impédance. La première partie du document présente le principe de fonctionnement de ces piles, ainsi que l'état de l'art de la modélisation et des méthodes de surveillance et diagnostic. Le modèle physique multi échelle particulièrement détaillé publié en 2005 par A.A. Franco sert de point de départ. Il est simplifié de façon à aboutir à un système d'équations aux dérivées partielles en une unique dimension spatiale. L'objectif principal de la seconde partie est l'analyse harmonique du fonctionnement de la pile. En s'inspirant de travaux classiques sur l'analyse géométrique de réseaux de réactions électrochimiques, un modèle réduit compatible avec la thermodynamique est obtenu. Cette classe de systèmes dynamiques permet de déterminer, pour un tel réseau, une formule analytique de l'impédance de l'anode et de la cathode d'une pile PEMFC. Un modèle complet de la pile est obtenu en connectant ces éléments à des éléments représentant la membrane, les couches diffuses et les couches de diffusion des gaz. Les modèles précédents supposent la pile représentée par une cellule unique et homogène. Afin de permettre d'en décrire les hétérogénéités spatiales, nous proposons finalement un résultat de modélisation réduite d'un réseau de cellules représentées par leur impédance. Ce modèle approxime l'impédance globale du réseau par une "cellule moyenne", connectée à deux cellules "série" et "parallèle" représentatives d'écart par rapport à la moyenne. / This PhD thesis focuses on reduced modeling of PEM fuel cell for supervision and diagnosis by impedance spectroscopy. The first part of the document presents the principle of the PEM fuel cell, as well as the state of the art of modeling and of the methods for supervision and diagnosis. The multiscale dynamic model published in 2005 by A.A. Franco is particularly detailed and serves as a starting point. It is simplified, in order to obtain a system of partial differential equations in a single spatial dimension. The second part is devoted to harmonic analysis of the PEM Fuel cell. Inspired by classical work on the geometric analysis of electrochemical reactions networks, a model compatible with thermodynamics is obtained. This class of dynamic systems allows establishing, for such a network, an analytical formula of the impedance of the anode and the cathode of the PEM fuel cell. A complete model of the cell is obtained by connecting these elements to the membrane, diffuse layers and gas diffusion layer. The previous models assumed the PEM Fuel cell represented by a single, homogeneous, cell. In order to describe the possible spatial heterogeneities, we finally propose a result of reduced modeling for the impedance of a cell network. This model approximates the overall impedance of the network by a "mean cell", connected to two cells, put in "serial" and "parallel", and representative of the deviations from the average.

Neste trabalho é apresentada uma formulação híbrida do Método dos Elementos de Contorno/Método dos Elementos finitos à análise da interação placa-estaca-solo. Nesta formulação a placa é modelada pelo método dos elementos finitos, utilizando os elementos DKT (Discrete Kirchhoff Theory) e HSM (Hybrid Stress Model); e o solo é modelado pelo método dos elementos de contorno como um meio elástico semi-infinito. A estaca é representada por apenas um elemento, com 3 pontos nodais definidos ao longo de seu fuste e a tensão de cisalhamento ao longo da mesma é aproximada por um polinômio do segundo grau. A tensão normal à seção da extremidade inferior da estaca é suposta constante e um ponto nodal é definido no centro desta seção. A interface placa-solo é dividida em elementos de contorno triangulares coincidentes com a divisão dos elementos finitos da placa; e admite-se que a tensão de contato varie linearmente no domínio de cada elemento. As tensões de contato são eliminadas nos dois sistemas de equações, provenientes do MEF e do MEC, para obter o sistema final de equações governantes do problema. Após a resolução deste sistema são obtidos os deslocamentos nos nós e a partir deles são calculadas as tensões de contato placa-solo e a carga absorvida por cada estaca. Além disso, esta formulação também permite a análise de blocos de estacas com ou sem contato entre o bloco e o solo. Vários exemplos envolvendo a interação placa-solo, estaca-solo e placa-estaca-solo foram analisados e os resultados obtidos estão de acordo com os fornecidos por outras formulações. / This work presents a hybrid Finite Element/Boundary Element formulation for the analysis of plate-pile-soil interactions problems. In this formulation the plate is modeled by finite elements using DKT (Discrete Kirchhoff Theory) and HSM (Hybrid Stress Model) elements and the soil is modeled as an elastic half space by the boundary element method. The pile is represented by only one element, with 3 nodal points, and shear force along the pile is approximated by a second degree polynomial. The pile-tip stress is assumed to be constant over the cross-section and a further nodal point is located there. The interface plate-soil is divided in a triangular boundary elements mesh coincident with that used in the finite element of the plate and the subgrade traction is assumed to vary linearly across each element. The subgrade tractions are eliminated from the two system of equation obtained with FEM and BEM resulting in the governing system of equation for plate-pile-soil interactions problems. By solving this set of equations the nodal displacements, the load on the piles and the subgrade tractions are calculated. Besides, this formulation allows also analysis several piles groups with and without ground-contacting rigid and flexible caps. Numerical results are presented for plate-soil, pile-soil and plate-pile-soil interactions. In all the results agree closely with those from much more elaborate analysis.

Para uma análise mais exata do sistema estrutural, é necessário um estudo do comportamento interativo entre as diversas partes que o compõe, entre eles, destaca-se a interação entre os elementos de fundação e o maciço de solos. Neste trabalho foram desenvolvidas formulações numéricas para a análise da interação estaca-solo via acoplamento entre diferentes métodos numéricos: método dos elementos de contorno, método dos elementos finitos e método das diferenças finitas. As estacas podem estar submetidas a carregamentos horizontais, verticais e momentos aplicados em seu topo. Nestas formulações foram utilizadas, além das equações integrais de deslocamentos, as equações de suas derivadas, levando a um grau maior de singularidade, porém permitindo a adoção de aproximações mais refinadas para os deslocamentos e tensões ao longo da estaca. Todos os deslocamentos e suas derivadas referentes à estaca foram compatibilizados com os correspondentes do solo. Desenvolvidas as formulações, feito o devido acoplamento entre eles, foram analisados exemplos, que foram comparados com os resultados obtidos por outros pesquisadores, demonstrando sua validade. / For a more accurate analysis of the structural system, it is necessary to study the interactive behavior between the various parts that compose it, among them, there is the interaction between the foundation elements and massive soil. In this work, numerical formulations were developed for the analysis of pile-soil interaction by coupling between different numerical methods: the boundary element method, finite element method and finite difference method. Piles can be subjected to horizontal loads, vertical and moments applied on its top. In these formulations were used in addition to the displacement integral equations, the equations of their derivatives, leading to a higher degree of uniqueness but allowing the adoption of more sophisticated approaches to displacements and contact tractions along the pile. All displacements and their derivatives relating to the pile were matched with the corresponding soil. Developed formulations made due coupling between them were analyzed examples, which were compared with results obtained by other authors, demonstrating its validity.

Ce travail s’oriente vers la valorisation du traitement d’eaux usées à partir de piles à combustibles microbiennes (PCM) benthiques pour la production d’électricité. Cette technologie permet la production d’électricité à partir de micro-organismes électro-actifs (EA) et d’un substrat carboné qui peut être de l’eau usée.Quatre types d’eaux usées issues de l’activité anthropique sont sélectionnés. La présence de micro-organismes EA est mise en évidence par 2 méthodes électrochimiques. En condition réelle, le milieu lagunaire présente les meilleures performances électriques (6,6 mW/m²). Celui-ci propose l’environnement le plus favorable à l’installation dePCM benthiques in-situ. Les résultats montrent une forte influence des micro-algues sur l’activité des biofilms EA. Avec un cycle jour/nuit, cette production varie en suivant les cycles d’éclairage. Les micro-algues apportent l’oxygène nécessaire aux réactions cathodiques. Les PCM améliorent également la consommation de polluants du milieu cathodique.L’alimentation de petits dispositifs tels que des capteurs passe obligatoirement par une augmentation de la tension délivrée par les biopiles. Différentes techniques d’élévation de la tension (mise en série et en parallèle de plusieurs piles, convertisseurs DC/DC) sont analysées. Un capteur de température et d’humidité a fonctionné durant plus de 15 h directement alimenté par une de nos biopiles benthiques avec une puissance de 328 µW. Sa tension de sortie est augmentée par un convertisseur de type Flyback, passant de 560 mV à plus de 5,5 V. L’utilisation de PCM in-situ dans la lagune peut constituer une alternative à la production électrique et au traitement des eaux usées. / The work described in this document is oriented to enhancing the treatment of wastewater from benthic microbial fuel cell (BMFC) for electricity production. This technology allows the production of electricity from electro-active (EA) microorganisms and carbonated substrate which may be the wastewater.Four types of wastewater from human activity are selected. The presence of EA microorganisms is highlighted by two electrochemical methods. In real conditions, the lagoon environment has the best electrical performance (6.6 mW/m²).The lagoon environment offers the most favorable environment for installation BMFC in-situ. The results show a strong influence of microalgae on the EA biofilms activities and thus on the production of electricity. In lagoon conditions, with a day/night cycle, this production varies according to the lighting cycles. Microalgae bring oxygen necessary for cathode reactions at lower cost. BMFC also improve the consumption of pollutants including organics.Electrical supply by small devices such as sensors necessarily requires an increase of the voltage delivered by BMFC. The different voltage boosting techniques such as series and parallel connections of several units or the use of DC/DC converters are performed and analyzed. A temperature and humidity sensor worked for more than fifteen hours directly powered by a BMFC with a power of 328 µW. Its output voltage is increased by a flyback type DC/DC converter, from 560 mV to more than 5.5 V. The use of PCM in-situ in the lagoon can be an alternative to the power generation and the treatment of wastewater.

En 2014, le réseau de pipelines à travers le monde est estimé à près de 3 500 000 km. Ces conduites en acier traversent plusieurs continents, régions, climats et donc différents types de sols. Elles sont protégées contre la corrosion externe par des revêtements et une protection cathodique. Néanmoins, il subsiste toujours un risque infime de dégradation de l’acier. Afin d’évaluer le risque de rupture d’une conduite, il est nécessaire d’étudier l’influence du sol sur la corrosion de l’acier nu non protégé composant cette conduite. Les paramètres régissant la corrosion des aciers dans les sols étant nombreux, nous nous sommes focalisés sur l’un des paramètres clés, à savoir « la teneur en eau » qui est directement reliée à d’autres paramètres très influents comme : l’aération ou taux d’oxygène, la résistivité du sol et la surface active. Dans cette thèse, nous nous sommes intéressés aux phénomènes se produisant lors de périodes transitoires de séchage/humidification de plusieurs types de sols : argileux, limoneux argileux et sableux. Une électrode multi-coupons a aussi été utilisée afin d’étudier les phénomènes liés à l’hétérogénéité de surface (formation de piles d’aération différentielle). Pour cela, différents coupons en acier provenant d’une conduite d’Air Liquide ont été enfouis pendant de longues périodes (4, 6 et 12 mois) dans différents types de sols. Les vitesses de corrosion sont estimées par électrochimie via la modélisation des courbes de voltammétrie autour du potentiel d’abandon. La surface active de l’électrode est estimée via la mesure de la résistance d’électrolyte par spectroscopie d’impédance électrochimique. Les échantillons sont ensuite analysés par micro-spectroscopie Raman, diffraction des rayons X et microscopie (optique, confocale et électronique à balayage) afin de déduire les mécanismes de corrosion de l’acier. Les résultats montrent, notamment, qu’en cas d’un fort taux d’humidité et d’une faible aération, les vitesses de corrosion sont très faibles (de l’ordre de 20 à 30 µm.an-1) mais atteignent 200 à 400 µm.an-1 lors des phases de séchage. La mesure de courants de couplage effectuée avec l’électrode multi-coupons ainsi que l’analyse de surface des coupons conventionnels ont confirmé la présence de piles d’aération différentielle et le caractère localisé de la corrosion. / In 2014, the pipelines network extended over 3500000 km worldwide. These pipes are passing through various continents, regions, areas and thus different types of soils. They are protected against external corrosion by coatings and cathodic protection. However, there is always a slight risk of carbon steel degradation. In order to evaluate the pipeline failure threat, it is necessary to study the influence of soil corrosion on the uncoated steel which composes this pipe. There are many parameters governing the steel corrosion in soils. We focused on one of the most important parameter “water content”. It is directly linked to other prominent parameters such as oxygen concentration, soil resistance and active area. In this thesis, we addressed the phenomena occurring at transitory periods of drying and remoistening in different types of soils : clayey, silt-loamy and sandy. A multi-coupon electrode was used as well in order to study the phenomena linked to surface heterogeneity (formation of differential aeration cells). For this aim, several steel coupons were buried in different types of soil for long periods (4, 6 and 12 months). The corrosion rates are estimated via electrochemical methods by fitting with a theoretical law the voltammetric curves acquired around the open circuit potential. The active area of the electrode was estimated via the determination of the soil electrolyte resistance by electrochemical impedance spectroscopy. Afterwards, the coupons were analyzed by micro-spectroscopy Raman, X-rays diffraction and microscopy in order to understand the corrosion mechanisms. Results showed that in case of very high moisture content and deaerated conditions, the corrosion rates were very weak (about 20 to 30 µm.yr-1) but reached 200 to 400 µm.yr-1 in the drying periods. The galvanic current measurements performed with the multi-coupon electrode and the surface analysis of the conventional electrodes both confirmed the presence of differential aeration cells and the localized nature of the corrosion.

Le développement des Piles à Combustible (PàC) est en plein essor dans le contexte de transition énergétique mondial. La production d'énergie électrique par les PàCs possède l'atout majeur de ne rejeter que de l'eau et de la chaleur, sans émission de gaz à effet de serre. Pour un développement et une commercialisation plus large des PàCs comme générateurs d'énergie, leur fiabilité et leur durée de vie. Cette thèse est dédiée au Contrôle Tolérant aux Fautes appliquée à la gestion de l'eau dans les Piles à Combustibles de type PEM. Une gestion appropriée de l'état d'hydratation de la PEMFC contribue à éviter les dégradations irréversibles de ses composants et ses performances, et par conséquent à un allongement de sa durée de vie et une augmentation de sa fiabilité. La stratégie de Contrôle Tolérant aux Fautes Actif proposée est constituée d'une méthode de diagnostic basée modèle pour la détection et l'isolation des fautes et d'un contrôleur PID auto-adaptatif régulant la surstoechiométrie en oxygène. Il est à noter que cette stratégie a été validée en ligne sur un système PàC réel. / Fuel Cell (FC) development is expending due to global energy transition. Power generation using FC results in water and heat as by-products, without emission of greenhouse gases. To continue developing and expanding its use as power generators, FC lifetime and reliability have to be enhanced. This thesis work is dedicated to Fault Tolerant Control System (FTCS) applied to water management in PEM Fuel Cells. An appropriate water management of FC allow to avoid irreversible degradations of FC components and performance that lead to an improvement of FC reliability and lifetime.The proposed FTCS is composed of a model-based diagnosis method applied to fault detection and isolation, and a self-tuning PID strategy for oxygen excess ratio control. This strategy is tested and validated on-line on a real FC system.

La simulation du geste humain est une thématique de recherche importante et trouve notamment une application dans l'analyse ergonomique pour l'aide à la conception de postes de travail. Le sujet de cette thèse concerne la génération automatique de tâches d'atteinte dans le plan horizontal pour un humanoïde. Ces dernières, à partir d'un objectif exprimé dans l'espace de la tâche, requièrent une coordination de l'ensemble des liaisons. L'une des principales difficultés rencontrées lors de la simulation de gestes réalistes est liée à la redondance naturelle de l'humain. Notre démarche est focalisée principalement sur deux aspects : - le mouvement de la main dans l'espace opérationnel (trajectoire spatiale et profil temporel), - la coordination des différentes sous-chaînes cinématiques. Afin de caractériser le mouvement humain, nous avons mené une campagne de capture de mouvements pour des gestes d'atteinte contraignant la position et l'orientation de la main dans le plan horizontal. Ces acquisitions nous ont permis de connaître l'évolution spatiale et temporelle de la main dans l'espace de la tâche, en translation et en rotation. Ces données acquises couplées à une méthode de rejeu ont également permis d'analyser les relations intrinsèques qui lient l'espace de la tâche à l'espace articulaire du mannequin. Le schéma de génération automatique de mouvements réalistes est basé sur une pile de tâche avec une approche cinématique. L'hypothèse retenue pour simuler le geste est de suivre le chemin le plus court dans l'espace de la tâche tout en bornant le coût dans l'espace articulaire. Un ensemble de paramètres permet de régler le schéma. Il en résulte une cartographie de réglages qui permet de simuler une classe de mouvements réalistes. Enfin, ce schéma de génération automatique de mouvements réalistes est validé par une comparaison quantitative et qualitative entre la simulation et le geste humain. / The simulation of human movement is an active theme of research, particularly in ergonomic analysis to aid in the design of workstations. The aim of this thesis concerns the automatic generation of reaching tasks in the horizontal plane for a virtual humanoid. An objective expressed in the task space, requires coordination of all joints of the mannequin. The main difficulties encountered in the simulation of realistic movements is related to the natural redundancy of the human. Our approach is focused mainly on two aspects: - Motion of the hand's operator in the task space (spatial and temporal aspect), - Coordination of all kinematic chains. To characterize human movement, we conducted a set of motion capture with position and orientation constraints of the hand in the horizontal plane. These acquisitions allowed to know the spatial and temporal evolution of the hand in the task space, for translation and rotation aspects. These acquired data were coupled with a playback method to analyze the intrinsic relations that link the task space to joint space of the model. The automatic generation scheme of realistic motion is based on a stack of task with a kinematic approach. The assumption used to simulate the action is to follow the shortest path in the task space while limiting the cost in the joint space. The scheme is characterized by a set of parameters. A global map of parameter adjustment enables the simulation of a class of realistic movements. Finally, this scheme is validated quantitatively and qualitatively with comparison between the simulation and the human gesture.

A pesquisa parte do fato de que os métodos semiempíricos de estimativa da capacidade de carga de estacas não devem ser empregados indiscriminadamente em qualquer região do país sem as devidas adequações às características do solo local. Constata-se, com isso, que não existem metodologias específicas para proceder tais adequações e que o meio técnico acaba por realizar a mera classificação dos métodos em conservador ou contra a segurança, o que se constitui num certo paradigma. Assim, o presente trabalho propõe uma Metodologia Semiempírica Unificada (MSU), em três etapas. Na primeira delas, o projetista estima a capacidade de carga a partir da otimização das melhores práticas adotadas pelos diversos métodos semiempíricos utilizados no Brasil. Discutem-se ainda o embutimento da ponta e a criação de novos métodos semiempíricos. Na segunda etapa, realiza-se a verificação de desempenho com base nos critérios de ruptura aplicados à curva carga-recalque de provas de carga. Nessa etapa, as imprecisões do dito paradigma são apontadas e faz-se uma nova proposta de aplicação dos critérios de ruptura. Na terceira etapa, faz-se uma retroanálise para aferição da estimativa semiempírica unificada da primeira etapa. Propõe-se, assim, o uso da separação das parcelas de atrito e ponta por meio de métodos de transferência de carga, bem como pela proposta de ajustes polinomiais, no caso de ensaios instrumentados. A análise crítica desse processo gerou a proposta de uma nova abordagem matemática da transferência de carga. A correção dos valores adotados para os coeficientes semiempíricos de cada camada, individualmente, é feita pela proposta de aplicação do conceito de Hierarquia dos Solos (AMANN, 2000). Os resultados de correção dos métodos semiempíricos, contudo, são específicos para o solo de cada local em estudo. Assim, são utilizados, como exemplo, ensaios em diversas regiões do país, o que permite a verificação da aplicabilidade da metodologia proposta. / The research starts from the fact that the semiempirical methods for estimating the pile load capacity shouldn\'t be used indiscriminately in any country\'s region without making proper adjustments to the local soil characteristics. It is verified, from this, that there are no specific methodologies to make such adjustments and the geotechnical engineers find themselves forced to perform a simple classification of the methods in \"conservative\" or \"against the safety\", which constitutes a form of paradigm. In this context, this paper proposes a Unified Semiempirical Methodology (MSU) in three steps. In the first, the designer estimates the foundation load capacity from the optimization of best practices adopted by different semiempirical methods used in Brazil. A discussion is also made the toe embedment and the creation of new semiempirical methods. In the second step, the verification of the foundation performance is carried out, based on the failure criteria applied to the load-settlement curve of load tests. At this step, the inaccuracies from that paradigm are outlined and a new proposal is made for applying the failure criteria. In the third step, a backanalysis is accomplished to admeasure the unified semiempirical estimative from the first step. It is, thus, proposed to separate both shaft friction and toe resistance from the total load, by means of load transfer methods, and by the proposal of polynomial adjustments in the case of instrumented piles. With the critical analysis of this process, a new mathematical approach to load transfer is presented. The correction of the coefficients of the semiempirical methods is made by the application of the Soils\'s Hierarchy concept (AMANN, 2000). The results of semiempirical methods correction, however, are specific to the soils of each particular site. The applicability, of the proposed methodology, is illustrated using pile load tests from various parts of the country.

Apesar dos elevados teores de matéria orgânica nos resíduos domiciliares e da implantação da compostagem para os resíduos sólidos orgânicos ser prevista pela Política Nacional de Resíduos Sólidos (Lei n° 12.305/10), a adoção da prática como forma de tratamento ainda apresenta ações incipientes no país. Este trabalho teve como proposta a coleta seletiva da fração orgânica dos resíduos sólidos urbanos (FORSU) produzida em 19 estabelecimentos comerciais de São Carlos para a realização da compostagem e vermicompostagem. A primeira etapa do trabalho consistiu na verificação da adaptação dos proprietários dos estabelecimentos em relação ao sistema de segregação proposto e na avaliação da percepção dos mesmos em relação à separação dos resíduos orgânicos e da compostagem, sendo esta análise realizada através da aplicação de questionários. Na segunda etapa, foi realizada a compostagem em quatro leiras cilíndricas de alambrado de 1,2 m de diâmetro e 1 m de altura. Testou-se os seguintes tratamentos em cada leira: trituração e revolvimento, não trituração e revolvimento, não trituração e não revolvimento (controle) e não trituração e não revolvimento com tubos de PVC. Verificou-se, através do monitoramento dos parâmetros físicos, químicos e microbiológicos e de análises estatísticas, as diferenças e similaridades entre os tratamentos. A terceira etapa iniciou-se após a estabilização dos compostos. Foram inoculadas 500 minhocas da espécie Eisenia foetida em uma quantia entre 20-25 kg de composto retirado das leiras revolvidas e os mesmos parâmetros da etapa anterior foram monitorados na vermicompostagem. Os resultados encontrados na etapa 1 indicaram que: os estabelecimentos realizaram a correta segregação dos resíduos, mostrando-se bem adaptados; quase a metade dos entrevistados desconheciam a técnica de compostagem; e, embora a maioria realizasse a separação da FORSU, a mesma era coletada de forma não diferenciada e encaminhada diretamente ao aterro. Na etapa 2, constatou-se que: o revolvimento influenciou na manutenção da temperatura termofílica por períodos mais prolongados, na correção da umidade, nos valores de pH , nitrogênio, relação C/N, CRA, metais, macro e micro nutrientes e granulometria; em relação à trituração, com exceção da granulometria, os demais parâmetros monitorados foram similares a leira não triturada, demostrando pouca influência de sua adoção no processo de compostagem; na leira composta por tubos de PVC, os registros de temperatura foram menores que as demais, de forma que o dispositivo ocasionou um resfriamento excessivo. Concluiu-se que somente a etapa 2 foi suficiente para o atingimento dos limites legais estabelecidos para os fertilizantes orgânicos, sendo os benefícios da adoção da vermicompostagem na etapa 3 relacionados aos incrementos das propriedades agronômicas de fertilidade de solo. / Despite the presence of high levels of organic matter in household wastes and the implementation of composting for organic wastes provided by the National Policy on Solid Waste (Law No. 12,305/10), the composting practice as a treatment is still incipient in Brazil. This study aimed at the selective collection of the organic fraction of municipal solid wastes (OFMSW) produced in 19 establishments in São Carlos city for use in composting and vermicomposting techniques. The first stage of the study consisted in an investigation on the adaptation to the segregation system proposed and evaluation of the owners\' perceptions regarding the separation of organic waste and composting through questionnaires. The second stage was devoted to the composting. The collected waste was deposited onto four cylindrical piles of 1.2 m diameter and 1 m height. The treatments evaluated in each pile were trituration and turning, no trituration and turning, no trituration and no turning (control), and no trituration and no turning of PVC pipes. The monitoring and statistical analysis of the physical, chemical and microbiological parameters revealed differences and similarities in each treatment. The third stage started after the stabilization of the compost. Five hundred earthworms of Eisenia foetida specie were inoculated in 20-25 kg of compost taken from two piles and the same parameters of the previous step were monitored. In step 2, the turning influenced the maintenance of the thermophilic stage for longer periods, humidity correction, values of pH, nitrogen, C/N relation, WRC, metals, micro and macronutrient and particle size. Except for the particle size, trituration exerted little influence on the parameters. The lowest temperatures were recorded in a pile composed of PVC pipes. It can be concluded that only the second step was sufficient for the achievement of legal limits for organic fertilizers and the benefits of vermicomposting as a post treatment technique (step 3) are related to the increase in the agronomic properties of soil fertility.