Evaluating the influence of raw materials on the behavior of nitrogen fractions in composting processes on an industrial scale
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URI: http://hdl.handle.net/10835/15140
ISSN: 0960-8524
DOI: https://doi.org/10.1016/j.biortech.2020.122945
ISSN: 0960-8524
DOI: https://doi.org/10.1016/j.biortech.2020.122945
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Estrella González, Maria José; López González, Juan Antonio; Suárez Estrella, Francisca; López López, María Josefa; Jurado Rodríguez, Macarena Del Mar; [et al.]Date
2020-01-30Abstract
Success of composting as an ecological technology for organic waste management has allowed its implementation in the current circular economy models. However, composting on an industrial scale often shows drawbacks and peculiarities. In this work, a comparative analysis of 15 industrial composting facilities was
carried out in which different anthropogenic organic waste were processed. Results showed that composting process on an industrial scale did not always evolve in a standard way. Monitoring parameters as well as enzymatic activity depended largely on the raw materials and were strongly linked to the transformation of nitrogen fractions. Despite the heterogeneity of the processes and raw materials, microbial activity managed to the optimal biotransformation, obtaining products that comply with the agronomic quality standards. This work represents a breakthrough in composting and provides new knowledge for better management of this process on an industrial scale.
Palabra/s clave
Agrifood waste
“alpeorujo”
Sewage sludge
Industrial composting
Nitrogen biotransformation