The minerals industry in the era of digital transition: An energy-efficient and environmentally conscious approach

Nwaila, Glen T.; Frimmel, Hartwig E.; Zhang, Steven E.; Bourdeau, Julie E.; Tolmay, Leon C.K.; Durrheim, Raymond; Ghorbani, Yousef

doi:10.1016/j.resourpol.2022.102851

Cited by 36 publications

(15 citation statements)

References 102 publications

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“…Moreover, as the perspective of managers is very important to foster EMEC and ERPEB in an organization, we suggest considering this perspective in future studies. Lastly, as indicated by the prior researchers, the potential role of digital transition in the context of energy consumption by employees may also be incorporated in future studies (Centobelli et al, 2020(Centobelli et al, , 2021Nwaila et al, 2022).…”

Section: Limitations and Possible Future Directionsmentioning

confidence: 99%

Advancing the debate on hotel employees’ environmental psychology by promoting energy-saving behavior in a corporate social responsibility framework

Yang¹,

Cherian

Sial

et al. 2022

Front. Psychol.

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Considering the vulnerable climatic conditions in most parts of the planet, a successful transition toward a carbon-free future is a critical challenge worldwide. In this respect, around 35% of the world's total greenhouse gas emission (GHG) is associated with the power sector (especially electrical energy). To this end, a vast of electrical energy has been used by the people in buildings. Specifically, a significant amount of energy in buildings is used for heating, cooling, and ventilation. While the available literature highlights the importance of neat, clean, and green electrical energy for the decarbonization of society, a critical gap exists in such literature. That is, most of the literature under this stream deals with the supply side (production) of electrical energy, while the demand side (consumption at an individual level) was neglected. To bridge this critical knowledge gap, this study investigates how the CSR engagement of a hotel organization can promote the energy-related pro-environmental behavior (ERPEB) among the employees with the intervening effect of employees' environmental commitment (EMEC) and Green intrinsic motivation (GRIM). Further, the conditional indirect role of altruistic values was also tested in this study. The data were collected from different hotel employees in Pakistan with the help of a self-administered questionnaire. We tested the hypothesized relationship through structural equation modeling (SEM). The results confirmed that CSR can be a potential motivator to impact the ERPEB of employees, while EMEC and GRIM mediated this relationship significantly. The findings of this study also confirmed the conditional indirect role of altruistic values. These findings offer various theoretical and practical contributions which are conversed in detail.

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Section: Limitations and Possible Future Directionsmentioning

confidence: 99%

Advancing the debate on hotel employees’ environmental psychology by promoting energy-saving behavior in a corporate social responsibility framework

Yang¹,

Cherian

Sial

et al. 2022

Front. Psychol.

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“…In order to profitably extract a mineral commodity now or in the future, there must be a sufficiently rich concentration of naturally occurring solid, liquid, or gaseous components in the Earth’s crust. A sufficiently promising mineral deposit that has been identified from geologic data in terms of its quality, richness, and location is referred to as an “identified resource” even though it may not have been exploited yet owing to market circumstances. − “Undiscovered resources” refer to metal-bearing mineral deposits that are thought to exist but lack solid geological evidence to support them. Such assessments are usually made based on experience, knowledge, and theory-based hypotheses.…”

Section: Introduction To Sustainable and Co2-reduced Metals And Alloysmentioning

confidence: 99%

“…This discrepancy of metal demand growth and insufficient scrap supply means that massive amounts of minerals are needed as new feedstock, to feed primary synthesis. ,,,, Yet, this step produces by far the largest emissions and energy demand, if no sustainable primary synthesis (refining and reduction) methods are identified, Figure . This means that under the current predominantly fossil-based production conditions we do not talk about a massive reduction in emissions and energy consumption in the metallurgical sector, as would be desirable to match the targets of the Paris Agreement, but only about the reduction of their further increase.…”

Section: Introduction To Sustainable and Co2-reduced Metals And Alloysmentioning

confidence: 99%

The Materials Science behind Sustainable Metals and Alloys

Raabe

2023

Chem. Rev.

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Production of metals stands for 40% of all industrial greenhouse gas emissions, 10% of the global energy consumption, 3.2 billion tonnes of minerals mined, and several billion tonnes of by-products every year. Therefore, metals must become more sustainable. A circular economy model does not work, because market demand exceeds the available scrap currently by about two-thirds. Even under optimal conditions, at least one-third of the metals will also in the future come from primary production, creating huge emissions. Although the influence of metals on global warming has been discussed with respect to mitigation strategies and socio-economic factors, the fundamental materials science to make the metallurgical sector more sustainable has been less addressed. This may be attributed to the fact that the field of sustainable metals describes a global challenge, but not yet a homogeneous research field. However, the sheer magnitude of this challenge and its huge environmental effects, caused by more than 2 billion tonnes of metals produced every year, make its sustainability an essential research topic not only from a technological point of view but also from a basic materials research perspective. Therefore, this paper aims to identify and discuss the most pressing scientific bottleneck questions and key mechanisms, considering metal synthesis from primary (minerals), secondary (scrap), and tertiary (re-mined) sources as well as the energy-intensive downstream processing. Focus is placed on materials science aspects, particularly on those that help reduce CO2 emissions, and less on process engineering or economy. The paper does not describe the devastating influence of metal-related greenhouse gas emissions on climate, but scientific approaches how to solve this problem, through research that can render metallurgy fossil-free. The content is considering only direct measures to metallurgical sustainability (production) and not indirect measures that materials leverage through their properties (strength, weight, longevity, functionality).

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“…Sensor-based ore sorting has been used in various mineral applications including diamonds, gold, copper, coal, lignite, hematite, quartz and many other minerals of value. Recently some review articles have published in the same area [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20] creating an exchange platform for cost effective engineering solutions in sensor based ore sorting. More beneficiation and advanced techniques for minerals like copper, coal, and diamond have also been proposed in [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], and [36], but none of these approaches intently reviews a generalized approach to sensor based ore sorting through the application of the interaction of electromagnetic waves with matter.…”

Section: Introductionmentioning

confidence: 99%

Sensor-Based Ore Sorting—A Review of Current Use of Electromagnetic Spectrum in Sorting

et al. 2022

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Sensor-based sorting has had a wide range of industrial use in automating and speeding up the process which requires substances or objects to be segregated from each other. The high demand for goods including raw materials, food, minerals, and waste recycling has increased the pressure for high-speed sorting. The first part of this paper presents a comprehensive theoretical and practical survey and comparison of current sorting methods relying on the use of the electromagnetic spectrum. Sorting methods are classified among other things, which portion of the EM spectrum is it, background noise rejection capacity, sample size limitations, sample chemistry limitations, sample surface cleanliness, spatial resolution capacity, spectral resolution, and feed rate limitations. The analysis focuses on color or visible light sorting, gamma-ray sorting, infra-red sorting, x-ray transmission-based sorting and x-ray fluorescence sorting, coupling the findings to the classification criteria outlined. We see a need to define a universal sorting scheme that will in general be applied to most sorting tasks. To do this, the final part of this paper re-looks at the x-ray transmission and x-ray fluorescence sorting scheme in line with the established limitations and proposes a dual x-ray transmission and fluorescence method to mitigate the challenge affecting the different schemes.

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The minerals industry in the era of digital transition: An energy-efficient and environmentally conscious approach

Cited by 36 publications

References 102 publications

Advancing the debate on hotel employees’ environmental psychology by promoting energy-saving behavior in a corporate social responsibility framework

Advancing the debate on hotel employees’ environmental psychology by promoting energy-saving behavior in a corporate social responsibility framework

The Materials Science behind Sustainable Metals and Alloys

Sensor-Based Ore Sorting—A Review of Current Use of Electromagnetic Spectrum in Sorting

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