I-STEP – A Case Study: Machine Learning Powered Condition Monitoring of a Linear Motion Industrial Vibrating Screen
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Vibrating Screens, crucial in mineral and waste processing industries, usually lack adequate condition monitoring to assess condition states or predict machine errors. Addressing this issue, IFE Aufbereitungstechnik GmbH and its partners are developing "i-STEP," a digitalization solution potentially integrating any market-available sensor for a customizable, plant- wide monitoring platform. Thus far, a vibration sensor, "SES" has been developed to specifically measure oscillation patterns of vibrating screens, which is the main focus of this research.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Vibrating Screens, crucial in mineral and waste processing industries, usually lack adequate condition monitoring to assess condition states or predict machine errors. Addressing this issue, IFE Aufbereitungstechnik GmbH and its partners are developing "i-STEP," a digitalization solution potentially integrating any market-available sensor for a customizable, plant- wide monitoring platform. Thus far, a vibration sensor, "SES" has been developed to specifically measure oscillation patterns of vibrating screens, which is the main focus of this research.
Comparative Analysis of Transfer and Continual Learning for Vision-Based Particle Classification in Plastics Sorting for Recycling
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In this study, we evaluate the effectiveness of transfer and continual learning techniques for vision-based trash particle detection and classification in plastics recycling. This task poses unique challenges for vision-based methods due to the great variety of particles in recycling material flows, their variability over time, and the lack of real recycling industrial datasets available for research.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In this study, we evaluate the effectiveness of transfer and continual learning techniques for vision-based trash particle detection and classification in plastics recycling. This task poses unique challenges for vision-based methods due to the great variety of particles in recycling material flows, their variability over time, and the lack of real recycling industrial datasets available for research.
The Allegory of Stupidity and Waste
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
This paper on the allegory of stupidity and waste is a more or less daring view on tomorrow’s capabilities in global waste management. A society facing seemingly unresolvable ecological challenges seems to be immune to its own overconsumption.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
This paper on the allegory of stupidity and waste is a more or less daring view on tomorrow’s capabilities in global waste management. A society facing seemingly unresolvable ecological challenges seems to be immune to its own overconsumption.
Polymer Differentiation with Computed Tomography: Opportunities and Limitations
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In the context of polymer recycling, differentiation and analysis of various polymer types are crucial for effective material separation and reuse. This study explores the effectiveness of computed tomography (CT) in distinguishing between different types of polymers based on their density and elemental composition, facilitating more efficient recycling processes.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In the context of polymer recycling, differentiation and analysis of various polymer types are crucial for effective material separation and reuse. This study explores the effectiveness of computed tomography (CT) in distinguishing between different types of polymers based on their density and elemental composition, facilitating more efficient recycling processes.
The Use of Textile Waste for Fibre-Reinforced Geopolymer Composite
Production
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
The textile industry is among the top largest industries in the world, as the demand for new products proportionally increases with population growth. In 2014, 90.8 million tons of textile fibres have been produced which is expected to exceed 100 million tons by 2025. Many different types of fibres can be used for textile production, such as cotton, hemp, nylon, polyester, however, the application of synthetic fibres had become more common compared to natural fibres in the recent years (Pensupa et al. 2017).
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
The textile industry is among the top largest industries in the world, as the demand for new products proportionally increases with population growth. In 2014, 90.8 million tons of textile fibres have been produced which is expected to exceed 100 million tons by 2025. Many different types of fibres can be used for textile production, such as cotton, hemp, nylon, polyester, however, the application of synthetic fibres had become more common compared to natural fibres in the recent years (Pensupa et al. 2017).
Fundamental drying experiments with processed residual municipal solid waste materials
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
Waste management companies and municipalities in southwestern Hungary aim the fulfillment of the EU’s target, namely to decrease landfilling below 10 % and increase recycling above 65 % of municipal solid wastes. However selective collection is continuously improved there is still high amount of residual MSW is generated. A new mechanical RMSW processing plant (20 t/h) and an experimental RDF pyrolysis plant (200 kg/h) had been built (Faitli et al. 2020) and now extensive research is being carried out to solve the local utilization of the bio-fraction and the RDF. This is the reason why this fundamental drying research was necessary. Dryer classification and the selection of the best solid waste drying techniques vary significantly due to the vast range of waste to be dried and the inherent challenges of dealing with non-standardized systems. In general, biomass dryers may be categorized according to their heat transmission technique and the physical qualities of wet particles.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
Waste management companies and municipalities in southwestern Hungary aim the fulfillment of the EU’s target, namely to decrease landfilling below 10 % and increase recycling above 65 % of municipal solid wastes. However selective collection is continuously improved there is still high amount of residual MSW is generated. A new mechanical RMSW processing plant (20 t/h) and an experimental RDF pyrolysis plant (200 kg/h) had been built (Faitli et al. 2020) and now extensive research is being carried out to solve the local utilization of the bio-fraction and the RDF. This is the reason why this fundamental drying research was necessary. Dryer classification and the selection of the best solid waste drying techniques vary significantly due to the vast range of waste to be dried and the inherent challenges of dealing with non-standardized systems. In general, biomass dryers may be categorized according to their heat transmission technique and the physical qualities of wet particles.
Closed-loop recycling of packaging waste at the food manufacturer
Freiberger
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
Packaging makes up an important part of food production both on side of suppliers and the manufacturer. Different kinds of packaging assure safe transport of goods as well as high quality of food products such as taste, smell, and colour. Therefore, plastic packaging provides a broad variety of properties, and their use in multilayer films enables tailoring properties, for example, films with desired medium barrier properties within excellent mechanical strength. However, the service life of plastic packaging is very short and at the end of it arises the problem of how to reuse or recycle such material to reduce plastic waste (Alipour et al. 2015), (Cenci-Goga et al. 2020).
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
Packaging makes up an important part of food production both on side of suppliers and the manufacturer. Different kinds of packaging assure safe transport of goods as well as high quality of food products such as taste, smell, and colour. Therefore, plastic packaging provides a broad variety of properties, and their use in multilayer films enables tailoring properties, for example, films with desired medium barrier properties within excellent mechanical strength. However, the service life of plastic packaging is very short and at the end of it arises the problem of how to reuse or recycle such material to reduce plastic waste (Alipour et al. 2015), (Cenci-Goga et al. 2020).
Tex2Mat: Recycling of industrial PA textiles to fibres and injection moulded parts
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
The project Tex2Mat is a cooperation of several manufacturing companies and uni-versities. In the course of the project two waste streams from textile companies were analysed, one was textiles made from a mixture of PET (polyethylene terephthalate) and cotton and the second one was a mixture of polyamides (PA). In this subproject regarding the PA the following members were selected in a way that all processing steps were represented along the complete value chain. The main objective the project was to analyse the whole value chain from the loom to collecting the waste, the recycling process and the production of the original product or other technical demanding products.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
The project Tex2Mat is a cooperation of several manufacturing companies and uni-versities. In the course of the project two waste streams from textile companies were analysed, one was textiles made from a mixture of PET (polyethylene terephthalate) and cotton and the second one was a mixture of polyamides (PA). In this subproject regarding the PA the following members were selected in a way that all processing steps were represented along the complete value chain. The main objective the project was to analyse the whole value chain from the loom to collecting the waste, the recycling process and the production of the original product or other technical demanding products.
Packaging recycling in EU member states – requirements from the circular economy package
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
The EU has established concrete recycling targets for packaging waste for 2025 and 2030. Furthermore, the methodology for calculating the corresponding recycling rates has been amended. The new and stricter calculation methodology will potentially lead to decreases of the current rates. This will be particularly the case for plastic packaging, where denkstatt calculated a gap far above 10 % compared to smaller decreases (> 2 %) to be expected for glass or steel packaging.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
The EU has established concrete recycling targets for packaging waste for 2025 and 2030. Furthermore, the methodology for calculating the corresponding recycling rates has been amended. The new and stricter calculation methodology will potentially lead to decreases of the current rates. This will be particularly the case for plastic packaging, where denkstatt calculated a gap far above 10 % compared to smaller decreases (> 2 %) to be expected for glass or steel packaging.
Collective research projects: Reviewing gaps in the recycling of multilayer flexible food packaging
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
Recyclability and sustainability are conflicts in multilayer flexible food packaging, where material combinations (polymers, paper, aluminium) intend functionality. To increase the sustainability of multilayer flexible packaging through recyclable solutions, systemic and technical obstacles need to be considered. A holistic redesign approach, addressing food protection and the packaging’s end of life (collection, sorting, recycling) is essential to improve these already sustainable packaging solutions. To this, current collective research projects at the University of Applied Sciences, aim to closely link science and industry, promote research in the field of sustainable packaging and provide solutions to recycling goals of the European Union.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
Recyclability and sustainability are conflicts in multilayer flexible food packaging, where material combinations (polymers, paper, aluminium) intend functionality. To increase the sustainability of multilayer flexible packaging through recyclable solutions, systemic and technical obstacles need to be considered. A holistic redesign approach, addressing food protection and the packaging’s end of life (collection, sorting, recycling) is essential to improve these already sustainable packaging solutions. To this, current collective research projects at the University of Applied Sciences, aim to closely link science and industry, promote research in the field of sustainable packaging and provide solutions to recycling goals of the European Union.
