Infodoc : Sciences, Techniques et Culture

With the increasing of people's living standards, more and more urban wastes are produced everyday with a huge quantity. The big amount of wastes have not only occupied precious land resource, influenced the industry seriously and agricultural production, but also introduced various pollutants, which will harm human's life and health. Compost processing can help urban wastes to be recycled by transforming the organic matter into fertilizer and be returned to nature. Also it can be used as a bioremediation method for the polluted soil. The mathematical model is an efficient tool for understanding and modifying the composting process, predicting the stability of compost products, and then assuring the harmfulness of pollutants for agriculture. Our objective in this study was to construc[...]

With the increasing of people's living standards, more and more urban wastes are produced everyday with a huge quantity. The big amount of wastes have not only occupied precious land resource, influenced the industry seriously and agricultural production, but also introduced various pollutants, which will harm human's life and health. Compost processing can help urban wastes to be recycled by transforming the organic matter into fertilizer and be returned to nature. Also it can be used as a bioremediation method for the polluted soil. The mathematical model is an efficient tool for understanding and modifying the composting process, predicting the stability of compost products, and then assuring the harmfulness of pollutants for agriculture. Our objective in this study was to construct a model describing the dynamics of organic micro-pollutants during the composting and parameterize the model under the interface of MATLAB [...]
Avec l'augmentation de niveau de vie des populations, de plus en plus déchets urbains sont produits chaque jour en grande quantité. Ces déchets non seulement occupent une place importante mais dégradent l'environnement en particulier parce qu'ils contiennent divers polluants, qui peuvent porter atteinte à la santé humaine. Le compostage permet aux déchets urbains d'être recyclés en transformant la matière organique en engrais pour les sols agricoles. Par ailleurs, ce procédé peut aussi être utilisé comme méthode de biorestauration pour les sols pollués. Les modèles mathématiques sont des outils qui permettent de comprendre et éventuellement de modifier le processus de compostage. Ils pourraient également prédire la stabilité des produits issus du compostage et quantifier la nocivité des polluants qu'ils contiennent. L'objectif dans cette étude était de construire un modèle décrivant la dynamique des micropolluants organiques au cours du compostage et paramétrer le modèle sous l'interface de MATLAB [...]