Forecasting global aluminium flows to demonstrate the need for improved sorting and recycling methods

Eynde, Simon Van den; Bracquené, Ellen; Díaz‐Romero, Dillam Jossue; Zaplana, Isiah; Engelen, Bart; Duflou, Joost R.; Peeters, Jef

doi:10.1016/j.wasman.2021.11.019

Cited by 41 publications

(14 citation statements)

References 19 publications

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“…First, the relationships between different resources (or materials) and their end-uses need to establish. This is the case for aluminium alloys (Hatayama et al 2007;Van den Eynde et al 2022) and steel alloys (Dworak and Fellner 2021;Dworak et al 2022). Additional research efforts are required to fill in this knowledge gap for other resources.…”

Section: Discussionmentioning

confidence: 99%

“…More generally, a loss of functionality could result from the modification of some key properties of the resource, which results in a loss of instrumental value that will negatively affect human wellbeing if human needs are unmet. As an example, aluminium cast alloys cannot be used in aerospace applications (Rambabu et al 2017;Van den Eynde et al 2022). Resource services can also be restored.…”

Section: Main Features: How Are Resource Services Impacted?mentioning

confidence: 99%

“…Resource services can also be restored. As an example, aluminium cast alloys can be upcycled to primary aluminium (Lu et al 2022), which can then be used in aerospace application (Van den Eynde et al 2022). Resources can also end up in sinks or stocks that are not accessible to future users due to geopolitical, social, economic, technical and environmental constraints and can then be considered as being dissipated (Beylot et al 2020b;Dewulf et al 2021).…”

Section: Main Features: How Are Resource Services Impacted?mentioning

confidence: 99%

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An instrumental value-based framework for assessing the damages of abiotic resources use in life cycle assessment

Greffe¹,

Margni

Bulle³

2022

Int J Life Cycle Assess

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Introduction & literature review. Abiotic resources are extensively used in industrialised societies to deliver multiple services that contribute to human wellbeing. Their increased extraction and use can potentially reduce their accessibility, increase competition among users and ultimately lead to a deficit of those services. Life cycle assessment is a relevant tool to assess the potential damages of dissipating natural resources. Building on the general consensus recommending evaluating the damages on the instrumental value of resources to humans in order to assess the consequences of ressources dissipation, this research work proposes a novel conceptual framework to assess the potential loss of services provided by abiotic resources, which when facing unmet demand, can lead to a deficit to human users and have consequences on human wellbeing. Results.A framework is proposed to describe the mechanisms that link human intervention on the resources in the accessible stock to competition among users. Users facing the deficit of resource services are assumed to have to pay to recover the services, using backup technologies. The mechanisms that are proposed to be characterized are dissipation and degradation. Data needed to later operationalize the framework for abiotic resources are identified. It also proposes a framework at the life cycle inventory level to harmonize life cycle inventories with the current impact assessment framework to fully characterize impacts on resource services. It regards ensuring mass balances of elements between inputs and outputs of life cycle inventory datasets as well as including the functionality of resource flows. Discussion and Conclusions.The framework provides recommendations for the development of operational life cycle impact assessment (LCIA) methods for resource services deficit assessment. It establishes the impact pathway to damage on the area of protection "Resource Services", data needed to feed the model and recommendations to improve the current state of life cycle inventories to be harmonized with the LCIA framework.

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Section: Discussionmentioning

confidence: 99%

Section: Main Features: How Are Resource Services Impacted?mentioning

confidence: 99%

Section: Main Features: How Are Resource Services Impacted?mentioning

confidence: 99%

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An instrumental value-based framework for assessing the damages of abiotic resources use in life cycle assessment

Greffe¹,

Margni

Bulle³

2022

Int J Life Cycle Assess

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“…Aluminum is a nontoxic, resistant, malleable metal and, when oxidized, forms a protective layer on its surface. These properties make metallic aluminum ideal in several areas, such as the food, health, beauty, and automotive industries [27,28]. In this context, recycling aluminum cans has been of interest to companies around the world with direct investments to obtain sustainable and low-cost products [15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Boehmite Particles Obtained from Recycling: Water Disinfection Application

et al. 2022

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We report on the synthesis of boehmite aluminum oxide hydroxide particles with lamellar structure (γ-AlO(OH)) obtained from the recycling of metallic can seals, with the addition of silver nanoparticles (Ag-NPs) reduced by Aloe Vera extract. X-ray diffractometry (XRD) confirmed the γ-phase, and scanning electron microscopy (SEM) showed the presence of Ag-NPs on the boehmite particle surface, confirming the efficiency of the synthesis to obtain the composite material. The samples were used to treat lake water, according to the Standard Methods for the Examination of Water and Wastewater. The results indicated that the elimination of total coliforms and Escherichia coli occurred, with excellent efficiency for the Ag-boehmite sample. The tests show the possibility of reuse (5×) of the sample, as it maintained the efficiency of disinfection for E. coli. The preparation, use, and reuse of boehmite obtained from metallic waste is a case of a circular economy, focused on sustainability and green chemistry.

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“…1 In 2020, 65,296,000 tons of aluminum were processed and this number continues to increase yearly. 2 At the same time, large quantities of scrap aluminum alloys are generated every year. [3][4][5] For these reasons, it would be beneficial to develop means of effectively recycling aluminum-containing solid waste.…”

mentioning

confidence: 99%

Study on the Cathodic Behavior of Impurities in the Process of Aluminum Extraction by Soluble Anode Electrolysis

Huang¹,

wang²,

杨³

et al. 2022

J. Electrochem. Soc.

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The preparation of coarse Al-Si alloys by carbon-based electrothermal reduction is a viable means of recycling scrap aluminum on an industrial scale to allow the the high-value utilization of this resource. However, the presence of impurities on the cathode can have significant effects on the product purity. The present study explored the behavior of impurity elements on the cathode and the reasons for the decreased purity of aluminum deposited at the cathode with increases in electrolysis time. X-ray diffraction, scanning electron microscopy, and inductively coupled plasma-atomic emission spectroscopy were used to study the compositions of the molten salt electrolyte and of the cathode product, as well as the phases and element distribution on the working electrode. With increasing cell voltage, the elements added as impurities were found to precipitate in the order of Fe > Al > Si > Mn > Ti > Mg > Ca. Increasing the concentration of these elements in the molten salt electrolyte was determined to increase the cell voltage, with Mg and Ca having the greatest effect.

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Forecasting global aluminium flows to demonstrate the need for improved sorting and recycling methods

Cited by 41 publications

References 19 publications

An instrumental value-based framework for assessing the damages of abiotic resources use in life cycle assessment

An instrumental value-based framework for assessing the damages of abiotic resources use in life cycle assessment

Synthesis and Characterization of Boehmite Particles Obtained from Recycling: Water Disinfection Application

Study on the Cathodic Behavior of Impurities in the Process of Aluminum Extraction by Soluble Anode Electrolysis

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