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Co-compostage de boues de station d'épuration et de déchets verts : Nouvelle méthodologie du suivi des transformations de la matière organique

Abstract : To reduce and recycle biowaste volumes, many cities have chosen to build municipal composting plants. Presently, compost quality determination requires many biological and chemical characterizations. Aims of this study were to characterize composting processes and to develop a simple and valuable method to assess biological and chemical evolution of composts. Compost windrows obtained from municipal solid wastes mixed to green wastes, were matured during six months. Composts were characterized by chemical (elemental analysis, organic matter, lignin, humic substances and 13C NMR) and biological methods (respiration, micro-organism enumeration, metabolic profile modifications of microbial communities, enzymatic activities) and revealed mineralization and humification of organic matter. Efficiency of Near InfraRed Spectroscopy (NIRS) was then demonstrated with help of a data bank establishing from 432 composts. Finally, since no parameter can be used alone, a global index of composting evolution (GICE) was synthesized by PCA from the whole of information and was perfectly calibrated by NIRS with PLS method. GICE should be a simple and efficiency tool of maturity determination. This NIRS-PCA strategy could be applied to the optimization of a new composting process in reactor which is in development.
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https://tel.archives-ouvertes.fr/tel-00174775
Contributor : Remy Albrecht <>
Submitted on : Tuesday, September 25, 2007 - 11:37:54 AM
Last modification on : Tuesday, January 14, 2020 - 10:38:02 AM
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Remy Albrecht. Co-compostage de boues de station d'épuration et de déchets verts : Nouvelle méthodologie du suivi des transformations de la matière organique. Sciences de la Terre. Université de droit, d'économie et des sciences - Aix-Marseille III, 2007. Français. ⟨tel-00174775⟩

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