Assessment of the use of Ewa bioreactor in the process of bio drying of undersize fraction manufactured from mixed municipal solid waste

The article presents the results of a research on the processing of undersize fraction, extracted from a stream of mixed municipal solid waste (MSW), into alternative fuel, in the process of bio-drying. The analysis was conducted with the use of an innovative EWA (Ecological Waste Apparatus) bioreactor adapted to carrying out aerobic treatment of waste in such processes as: composting, aerobic digestion/stabilization and bio-drying of waste. EWA bioreactors have been designed and manufactured by AGRO-EKO spol. s r.o. from the Czech Republic.The subject matter of the analysis was undersize fraction, with particle dimensions ranging from 0 to 50 mm, manufactured in the process of sorting (mechanical processing) of MSW. The main aim of the research was to assess suitability of the use of EWA bioreactor in the process of alternative fuel production from undersize fraction developed from municipal waste (in the process of accelerated bio-drying). Samples were collected between 2011 and 2012. The undersize fraction and the produced alternative fuel were analysed by AGRO-EKO spol. s r.o. and at the University of Agriculture in Krakow, in accordance with the standards for wastes and solid fuels. It has been concluded that undersize fraction produced from mixed municipal waste might be the ...

THE EXAMPLES OF MODERN SOLUTIONS IN THE FIELD OF WASTE MANAGEMENT IN CIRCULAR ECONOMY MODEL TRANSFORMATION

The work examines the role of innovative solutions in order to make more efficient use of waste and the reduction of their storage. Such solutions are necessary in the transformation process of linear economy to circular model. In the new model, the role of waste is being changed. Waste has not yet been treated as a by-product of economic activity but as a valuable resource that can be reused in the production process. There were also analysed how extent is the development of innovativeness in Poland in comparison to other European Union Member Countries. There is also analysed the direction of changes in the waste management field, especially in the structure of municipal waste. Another aim is to examine the examples of the Polish enterprises acting in waste management sector and the kind of innovative methods they use. In the article there were also presented supportive tools for implementing innovations in enterprises, with a focus on the waste management. They include among others: National Smart Specialisations and Regional Smart Specialisations. ...