HyperSpectral Imaging (HSI) based techniques applied to the monitoring of the anaerobic digestion process of bio-waste

The application of the proposed technique was addressed to identify and demonstrate the correlation existing, in terms of quality and reliability of the results, between the “classical” chemical-physical analytical approach and the NIR HSI based one. More specifically, with reference to anaerobic digestion processes and the phenomena occurring in the solid fraction inside bioreactors, the proposed approach could be profitably applied not only to perform a full control of the process but also: i) to carry out a real-time identification of possible reductions in biogas production due to some inhibitory events in the anaerobic reaction, ii) to develop optimised biomasses recipes for biogas production according to the different available natural wastes and iii) to set up innovative control strategies allowing to perform a full continuous control of the process.