My research interests are focused on the development of the predictive and classification models adapted to study biomass and second-generation biofuels. As a result of my research, the classifier for solid biofuels for energy purposes was developed. The knowable, gained during the research allowed me to successfully developed a new method to detect illegal combustion and co-combustion of waste in individual heating devices. This method is based on data analysis using a binary algorithm, is simple to use in most computing environments. This new tool was transferred to 175 Municipalities of the Silesian Voivodeship to control and prevention of the phenomenon of illegal combustion and co-combustion of waste.