Drivers and Barriers for the Adoption of Circular Economy Principles towards Efficient Resource Utilisation

Sustainability, Journal Year: 2024, Volume and Issue: 16(3), P. 1317 - 1317

Published: Feb. 4, 2024

Contemporary societies, whether they have reached advanced levels of economic and social development or are still developing, need to prioritise the implementation circular economy practices. This will facilitate shift towards regenerative, sustainable, closed-loop industrial systems. For now, there some efforts encourage patterns production consumption through changes in trends, institutional frameworks, harmonising regulations field environmental protection, raising level awareness achieve, above all, greater efficiency resources. Extensive literature that deals with monitoring already indicates existence numerous barriers this process but also notices incentives for degree circularity observed In paper, question a single value can represent chosen material/product chain is researched. An overview drivers implementing strategies given structure proper metric framework correlation research question. The objective was simplify by developing unique index comparing chains similar accomplished using material use (CMU) rate introduced European Union modifying it financial data calculation. As result, index, which covers all 9R (CEIR), obtained. practical verification model applicability shown determining achieved passenger cars four EU countries.

Language: Английский

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On the Definition, Assessment and Enhancement of Circular Economy across Various Industrial Sectors: A Literature Review

Published: Oct. 11, 2023

Circular economy has recently emerged as a key strategy for promoting sustainability and reducing waste in various industrial sectors. This paper provides an overview of circularity aerospace, wind energy, transportation, automotive sports goods using data information from the literature EC funded project "RECREATE". The survey reviews different definitions, assessment methods metrics used to explore evaluate circularity, including frameworks such Life Cycle Assessment (LCA) indicators. Furthermore, explores challenges, possibilities available tools enhancing digital tools. highlights importance holistic systemic technique concerning all stakeholders along value chain. Overall, this study aims contribute better understanding circular insights future research.

Language: Английский

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A Comparative Environmental and Economic Analysis of Carbon Fiber-Reinforced Polymer Recycling Processes Using Life Cycle Assessment and Life Cycle Costing

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(1), P. 39 - 39

Published: Jan. 15, 2025

The recycling of carbon-fiber reinforced polymers (CFRPs) presents significant challenges due to their thermosetting matrix, which complicates end-of-life management and often results in energy-intensive disposal or waste accumulation. Despite advancements methods, knowledge gaps remain regarding sustainability economic viability. This study undertakes a comprehensive Life Cycle Assessment Environmental Costing analysis four key techniques: mechanical recycling, pyrolysis, solvolysis, high-voltage fragmentation (HVF). By using the SimaPro software, this identifies HVF as most sustainable options, with lowest cumulative energy demand (CED) 5.82 MJ/kg 4.97 global warming potential (GWP) 0.218 kg CO2eq 0.0796 CO2eq, respectively. In contrast, pyrolysis imposes highest environmental burdens, requiring 66.3 emitting 2.84 CO2eq. Subcritical solvolysis shows more balanced impacts compared its supercritical counterpart. Cost reveals that for material costs are negligible zero. incur primarily need deionized water. Regarding costs, stands out expensive method high demands, followed closely by

Language: Английский

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A Deep Learning-Based Ensemble Framework to Predict IPOs Performance for Sustainable Economic Development

Sustainability, Journal Year: 2025, Volume and Issue: 17(3), P. 827 - 827

Published: Jan. 21, 2025

Addressing resource scarcity and climate change necessitates a transition to sustainable consumption circular economy models, fostering environmental, social, economic resilience. This study introduces deep learning-based ensemble framework optimize initial public offering (IPO) performance prediction while extending its application processes, such as recovery waste reduction. The incorporates advanced techniques, including hyperparameter optimization, dynamic metric adaptation (DMA), the synthetic minority oversampling technique (SMOTE), address challenges class imbalance, risk-adjusted enhancement, robust forecasting. Experimental results demonstrate high predictive performance, achieving an accuracy of 76%, precision 83%, recall 75%, AUC 0.9038. Among methods, Bagging achieved highest (0.90), outperforming XGBoost (0.88) random forest (0.75). Cross-validation confirmed framework’s reliability with median 0.85 across ten folds. When applied scenarios, model effectively predicted sustainability metrics, R² values 0.76 for both reduction low mean absolute error (MAE = 0.11). These highlight potential align financial forecasting environmental objectives. underscores transformative learning in addressing challenges, demonstrating how AI-driven models can integrate goals. By enabling IPO predictions enhancing outcomes, proposed aligns Industry 5.0’s vision human-centric, data-driven, industrial innovation, contributing resilient growth long-term stewardship.

Language: Английский

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Innovative Solutions for Combating Climate Change: Advancing Sustainable Energy and Consumption Practices for a Greener Future

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2697 - 2697

Published: March 18, 2025

This paper investigates strategies to address climate change by promoting sustainable energy technologies and consumption practices. It examines renewable sources such as solar, wind, geothermal their potential reduce greenhouse gas emissions. The study also explores optimization techniques, focusing on genetic algorithms (GAs) smart systems like grids microgrids, which enhance efficiency sustainability. research highlights the role of circular economy in fostering through recycling waste management. Furthermore, economic trade-offs between environmental harm, impact both fossil fuel energies. A dual methodological approach is employed: first, an endogenous growth model excluding factors, followed a modified version incorporating considerations. Using continuous algorithm data from 2000 2025, forecasts optimal trajectory for energy’s share global under two scenarios. findings suggest that could represent 82.4% total constraints, up current 45%. hindered challenges droughts, hydropower production. concludes achieving transition requires comprehensive policies integrating expansion, efficiency, protection. These provide important insights into optimizing pathways They serve foundation future policy recommendations, aiming ensure low emission balancing need with preservation environment.

Language: Английский

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A Robust Sustainability Assessment Methodology for Aircraft Parts: Application to a Fuselage Panel

Sustainability, Journal Year: 2025, Volume and Issue: 17(8), P. 3299 - 3299

Published: April 8, 2025

This paper presents a cradle-to-gate sustainability assessment methodology specifically designed to evaluate aircraft components in robust and systematic manner. integrates multi-criteria decision-making (MCDM) analysis across ten criteria, categorized under environmental impact, cost, performance. Environmental impact is analyzed through lifecycle cost costing, with both analyses facilitated by SimaPro 9.6.0.1 software. Performance measured terms of component mass specific stiffness. The robustness this tested various MCDM techniques, normalization approaches, objective weighting methods. To demonstrate the methodology, assesses fuselage panel, comparing nine variants that differ materials, joining part thicknesses. All approaches consistently identify thermoplastic CFRP panels as most sustainable option, geometric mean aggregation weights providing balanced criteria consideration environmental, performance aspects. adaptability proposed illustrated, showing its applicability any requisite data. structured approach offers critical insights support design procurement.

Language: Английский

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The Opportunity Cost Between the Circular Economy and Economic Growth: Clustering the Approaches of European Union Member States

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2525 - 2525

Published: March 13, 2025

The circular economy (CE) framework is increasingly recognized as essential for achieving sustainable development by addressing the challenges of resource depletion, waste generation, and environmental degradation. This study examines relationship between consumption, management procedures, energy efficiency within European Union (EU) member states, leveraging data from 2004 to 2023. Using Pearson correlation analysis, Principal Component Analysis (PCA), K-means clustering, this identifies key sustainability performance indicators classifies EU nations into four distinct clusters based on CE adoption. These findings reveal a strong positive productivity material use, indicating that efficient significantly enhances performance. Similarly, exhibits moderate with efficiency, suggesting economies optimizing consumption also enhance use efficiency. assesses role policy instruments, such taxation, which show weak negative productivity. insights provide actionable recommendations policymakers tailor interventions, harmonize strategies, address regional disparities accelerate transition resilient model.

Language: Английский

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Modelling and Visualization Tools for Resource Decoupling at Meso- and Micro-Levels: Case Study in Poland

Resources, Journal Year: 2025, Volume and Issue: 14(4), P. 66 - 66

Published: April 16, 2025

The monitoring and transition toward a circular economy, along with resource economic decoupling, can be supported by an assessment visualization system for material use. While productivity indicators macro-level decoupling are well established, significant challenges remain at the meso-level. In particular, identifying comparing industry branches is hindered data access constraints limitations. To identify visualize across different industrial divisions, were collected Poland from Central Statistical Office. A combination of three statistical methods offers multidimensional perspective on this research challenge. Osanna Triangle illustrates proportions resources used manufacturing while Ward’s method identifies similarities between divisions. Meanwhile, correlation analysis determines strength direction relationships utilization production value. This study aims to analyze consumption patterns various processing divisions these connections. results support formulation effective policies, including targeted low-emission technologies in specific approach optimize utilization, promote sustainable development, achieve decoupling.

Language: Английский

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A Preliminary Investigation on a Water- and Acetone-Based Solvolysis Recycling Process for CFRPs

Materials, Journal Year: 2024, Volume and Issue: 17(5), P. 1102 - 1102

Published: Feb. 28, 2024

Composites, and especially carbon-fiber-reinforced plastics (CFRPs), are increasingly used in the automotive, aerospace, aviation industries, as a result, CFRP production has increased dramatically, leading to corresponding increase waste. Landfills incineration of waste likely be restricted result legislation, thus highlighting need for efficient recycling methods CFRPs. However, CFRPs is very challenging, mainly due difficulty removing their thermosetting matrix. This study reports pre-screening solvolysis process based on mechanical properties recovered fibers. To this end, tests were conducted unidirectional samples under supercritical subcritical conditions using acetone water. The various temperature, pressure, reaction time, without use any catalyst. Also, loading rate (volume solvent/volume reactor) was constant. efficiency processes been evaluated through morphological characterization In most cases, decomposition epoxy resin, measured terms mass, ranged between 90 100%. Moreover, scanning electron microscopy images fibers showed negligible traces resin residues no detectable signs physical damage or changes morphology with regard diameter. Finally, single-fiber tension revealed that retained more than 61% initial Young's modulus 70% tensile strength.

Language: Английский

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Environmental Impact of Footwear Using Life Cycle Assessment—Case Study of Professional Footwear

Sustainability, Journal Year: 2024, Volume and Issue: 16(14), P. 6094 - 6094

Published: July 17, 2024

Life cycle assessment (LCA) is a method for assessing the environmental impact of product, activity, or system across all stages its life cycle. LCA can identify activities with major on environment throughout product. To analyze implications footwear, was applied to pair shoes designed professional use. In this paper, single studied. Every year, footwear production worldwide over 22 billion pairs, which has significant environment. case study, “cradle-to-grave” approach used, refers involved in starting from raw material extraction, manufacturing, use, maintenance, and, end, disposal. The conducted using SimaPro software. analyzed shoe needed acquisition two crucial datasets. Background inventory data were sourced Ecoinvent database (version 3.3). quantified Global Warming Potential (GWP) metric, calculates contribution emissions global warming 100-year time limit according established values provided by Intergovernmental Panel Climate Change (IPCC). greenhouse gas (GHG) measured relative carbon dioxide equivalents (kg CO2eq) facilitate standardized comparison. results show that total footprint safety boots 18.65 kg CO2eq “component manufacture” stage as contributor accumulating almost 80%.

Language: Английский

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