Enzymatic profiles associated with the evolution of the lignocellulosic fraction during industrial-scale composting of anthropogenic waste: Comparative analysis

In the new European Waste Law, composting is proposed as one of the best options to properly manage organic waste of anthropogenic origin. Currently, the massive generation of this type of waste, as well as its heterogeneity, makes difficult in many cases control this process of degradation on an i...

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Bibliographic Details
Main Authors: Estrella González, Maria José, Jurado Rodríguez, Macarena Del Mar, Suárez Estrella, Francisca, López, M. J., López González, Juan Antonio, Siles Castellano, Ana Belén, Moreno, J.
Format: info:eu-repo/semantics/article
Language:English
Published: 2024
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Online Access:http://hdl.handle.net/10835/15020
https://doi.org/10.1016/j.jenvman.2019.109312
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Summary:In the new European Waste Law, composting is proposed as one of the best options to properly manage organic waste of anthropogenic origin. Currently, the massive generation of this type of waste, as well as its heterogeneity, makes difficult in many cases control this process of degradation on an industrial scale. In this work, 15 facilities were selected based on 5 types of organic waste: Urban Solid Waste, Vegetable Waste, Sewage Sludges, Agrifood Waste and “Alpeorujo”. The samples were collected in different thermal phases. The results revealed very different physicochemical and enzymatic profiles, as well as different degrees of humification depending on the process and the raw materials. However, parameters such as β-glucosidase, amylase, lignin/holocellulose ratio and humification rate showed similar trends in all cases. All of them could act as important indicators to evaluate the quality of a composting process, despite the heterogeneity of the starting materials.