The heat is on! - From the material characterisation of spent refractory bricks to sensor training (practical examples from Project ReSoURCE)
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Refractory products are essential for high-temperature industrial processes, from steel and cement production to waste incineration and many more. Harsh environmental conditions in these applications result in the frequent renewal of refractory lining.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Refractory products are essential for high-temperature industrial processes, from steel and cement production to waste incineration and many more. Harsh environmental conditions in these applications result in the frequent renewal of refractory lining.
Implementation and evaluation of a real-time capable approach to sensor-based sorting using CNNs
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In state-of-the-art optical sorting, engineered image processing algorithms are commonly used to identify materials. However, for complex material textures and high- ensity material streams, these approaches are often unable to maintain the desired sorting quality. Convolutional neural networks (CNNs) have been proven to outperform such approaches in their ability to classify objects in images.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
In state-of-the-art optical sorting, engineered image processing algorithms are commonly used to identify materials. However, for complex material textures and high- ensity material streams, these approaches are often unable to maintain the desired sorting quality. Convolutional neural networks (CNNs) have been proven to outperform such approaches in their ability to classify objects in images.
I-STEP – A Case Study: Machine Learning Powered Condition Monitoring of a Linear Motion Industrial Vibrating Screen
© Lehrstuhl für 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 für 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.
The Allegory of Stupidity and Waste
© Lehrstuhl für 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 für 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.
CEFoodCycle - Circular Economy: Mapping Food Streams and Identifying Potentials to Close the Food Cycle
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Applying the concept of the Circular Economy (CE) to the food stream (production, use, disposal), the project CEFoodCycle creates a homogenized methodology to avoid food waste, re-use resources, and to close food cycles.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Applying the concept of the Circular Economy (CE) to the food stream (production, use, disposal), the project CEFoodCycle creates a homogenized methodology to avoid food waste, re-use resources, and to close food cycles.
Polymer Differentiation with Computed Tomography: Opportunities and Limitations
© Lehrstuhl für 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 für 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.
De-oiling of grinding sludge: What is the potential of mechanical de-oiling
by a centrifuge?
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Grinding sludge is a waste flow emerging from semi-finished products brought to their near-net-shape dimensions by grinding. In the grinding process, up to 50 wt% of the workpiece can be grinded off (Hagedorn et al. 2022). A lubricant is constantly sprayed onto the contact point between grinding tool and workpiece to reduce heat development, to remove the emerging metal chips and to reduce friction (Klocke 2018).
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Grinding sludge is a waste flow emerging from semi-finished products brought to their near-net-shape dimensions by grinding. In the grinding process, up to 50 wt% of the workpiece can be grinded off (Hagedorn et al. 2022). A lubricant is constantly sprayed onto the contact point between grinding tool and workpiece to reduce heat development, to remove the emerging metal chips and to reduce friction (Klocke 2018).
Photovoltaics in Focus: Developments, Future Predictions and How the PVReValue Project aims to Recycle PV Modules
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Photovoltaic (PV) technology is well on the way to playing a major role in global energy production. In recent decades, the worldwide use of photovoltaic technology has steadily increased, emphasizing the potential for a clean and sustainable future.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Photovoltaic (PV) technology is well on the way to playing a major role in global energy production. In recent decades, the worldwide use of photovoltaic technology has steadily increased, emphasizing the potential for a clean and sustainable future.
Digital Product Passport: Enabling Sustainable Supply Chain Management for Electric Vehicle Batteries
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
The circular economy is a transformative approach that aims to decouple economic growth from linear resource consumption, thereby promoting environmental sustainability and resource efficiency.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
The circular economy is a transformative approach that aims to decouple economic growth from linear resource consumption, thereby promoting environmental sustainability and resource efficiency.
Value Chain Optimization for Metal Recycling Processes through Probabilistic Modeling
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Optimizing the value chain in metal recycling processes presents significant challenges due to the complex nature of defining processes and the limited availability of sensor technologies capable of continuous monitoring (Golev & Corder 2016). Metal recycling remains at the forefront of industries advancing through expert knowledge and process simulation (Reuter et al. 2013).
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Optimizing the value chain in metal recycling processes presents significant challenges due to the complex nature of defining processes and the limited availability of sensor technologies capable of continuous monitoring (Golev & Corder 2016). Metal recycling remains at the forefront of industries advancing through expert knowledge and process simulation (Reuter et al. 2013).
