22 research outputs found
A Parameter Selection Framework for Sustainability Assessment
Sustainability assessment of resource recovery from waste is an important prerequisite for informed and sound decision-making. Life Cycle Sustainability Assessment (LCSA) has been developed to support this process, yet its use is still constrained by the difficulty of identifying the most relevant impact parameters. This paper, seeks to inform LCSA for resource recovery from waste based on a parameter identification approach that uses the political, economic, social, technological, environmental and legal (PESTEL) analysis. The novelty of this approach lies in the structured conceptualisation of the resource recovery system and the context within which decisions are made. The anaerobic digestion of source-separated food waste in the UK is used as a case study to trial and demonstrate the approach. Findings suggest that a conceptual, qualitative analysis, although limited in its scope due to the lack of quantitative components, is suitable in integrating different parameters, allowing for a holistic conceptualisation of the system and capturing important issues that could be easily overlooked. This type of analysis can summarise the key interdependencies, contrast the trade-offs and provide a wider understanding of the political and legal context within which the system operates, all important in extending the implementation of LCSA towards the right direction
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An overview on the occurrence, fate and human risks of Bisphenol‐A (BPA) present in plastic materials, components and products (MCPs)
John Hahladakis ORCID iD: 0000-0002-8776-6345; Eleni Iacovidou ORCID: 0000-0001-6841-0995; Spyridoula Gerassimidou ORCID: 0000-0003-3529-5761. Data availability statement: Data, associated metadata, and calculation tools are available from corresponding author John N. Hahladakis ([email protected], [email protected]).There are no funders to report for this submission
Assessing the role and use of recycled aggregates in the sustainable management of construction and demolition waste via a mini-review and a case study
Rapid industrial development, mega construction projects and increased immigration are some of the reasons that the State of Qatar has recently generated an unprecedented amount of construction and demolition (C&D) waste in the country. The State is racing towards the Fédération Internationale de Football Association World Cup 2022, a fact that requires additional construction, for which it is expected to increase its rate of waste generation. Compared to other regions, there are relatively few studies in the literature that report on the C&D waste management issues of Qatar. The present work begins to address this gap by providing insights into the current state of C&D waste management practices in Qatar and by providing a mini-review on the benefits of using recycled aggregates which have only recently been allowed locally by Qatar Construction Standards. A Strengths, Weaknesses, Opportunities, and Threats analysis has been implemented, using data and information from various sources including governmental reports, industries, local waste management companies, as well as reported interviews with relevant stakeholders. Finally, several strategies were proposed and developed that could potentially be implemented by stakeholders and decision-makers, so as to improve the current status by encouraging more sustainable and viable practices
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Unpacking the complexity of the polyethylene food contact articles value chain: A chemicals perspective
Data Availability:
Data is provided in the supplementary material available online at: https://www.sciencedirect.com/science/article/pii/S0304389423007057?via%3Dihub#sec0110 .Copyright © 2023 The Authors. Polyethylene (PE) is the most widely used type of plastic food packaging, in which chemicals can potentially migrate into packaged foods. The implications of using and recycling PE from a chemical perspective remain underexplored. This study is a systematic evidence map of 116 studies looking at the migration of food contact chemicals (FCCs) across the lifecycle of PE food packaging. It identified a total of 377 FCCs, of which 211 were detected to migrate from PE articles into food or food simulants at least once. These 211 FCCs were checked against the inventory FCCs databases and EU regulatory lists. Only 25% of the detected FCCs are authorized by EU regulation for the manufacture of food contact materials. Furthermore, a quarter of authorized FCCs exceeded the specific migration limit (SML) at least once, while one-third (53) of non-authorised FCCs exceeded the threshold value of 10 μg/kg. Overall, evidence on FCCs migration across the PE food packaging lifecycle is incomplete, especially at the reprocessing stage. Considering the EU’s commitment to increase packaging recycling, a better understanding and monitoring of PE food packaging quality from a chemical perspective across the entire lifecycle will enable the transition towards a sustainable plastics value chain.Brunel University London as part of the Brunel Research Initiative & Enterprise Fund (BRIEF) award No.11683100, in the context of the ‘Closing the Plastic Food Packaging Loop’ project; Food Packaging Forum (FPF)
Unpacking the complexity of the PET drink bottles value chain: A chemicals perspective
Appendix A. Supplementary material: Download Word document (https://ars.els-cdn.com/content/image/1-s2.0-S0304389422001984-mmc1.docx, 20KB)Brunel University London (Brunel Research Initiative & Enterprise Fund (BRIEF) award No.11683100, ‘Closing the Plastic Food Packaging Loop’ project).https://ars.els-cdn.com/content/image/1-s2.0-S0304389422001984-mmc1.doc