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Conference Proceedings

SDIMI 2009 - Sustainable Development Indicators in the Minerals Industry

Conference Proceedings

SDIMI 2009 - Sustainable Development Indicators in the Minerals Industry

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A Systems Approach for the Application of Eco-Efficiency Indicators for Process Design in the Minerals Industry

Eco-efficiency has been proposed by the World Business Council on Sustainable Development as an environmental performance indicator framework that contributes to sustainability by assisting corporate decision makers improve the environmental performance of their operations and processes, while also extracting additional economic value. Given that the recent engagement of the minerals industry with sustainability has highlighted the need for requisite tools and methodologies, it is therefore of interest to assess whether eco-efficiency indicators can drive sustainability performance improvement during process design within the minerals industry._x000D_
Previous work indicates that the choice of sustainability performance indicators to be used for decision making needs to be governed by the decision context; ie the performance indicators need to be fit-for-purpose. Here, the strengths and weaknesses of eco-efficiency indicators are analysed using case studies. First, a more rigorous definition of eco-efficiency indicators for the minerals industry is proposed based on indicators currently offered in the literature. Two case studies are then selected to reflect typical decision situations encountered within minerals process design. For each case study, eco-efficiency indicators are computed and are compared to more traditional graphical representations of the economic and environmental performance of process design alternatives considered. The sensitivity of these indicators to various process design parameters is also investigated._x000D_
Results confirm that the meaningful application of eco-efficiency indicators is strongly dependent on the decision context in which the process data is generated. Results also show that eco-efficiency indicators can be related to technical process design parameters to allow for richer communication of performance information for various decision trade-offs; however, in some cases, graphical approaches that provide more insights into the environmental-financial trade-offs should be preferred. The research thus contributes to guiding the selection of the appropriate tools for more environmentally sustainable design of minerals beneficiation processes._x000D_
FORMAL CITATION:Guma, M, von Blottnitz, H and Broadhurst, J L, 2009. A systems approach for the application of eco-efficiency indicators for process design in the minerals industry, in Proceedings SDIMI 2009 - Sustainable Development Indicators in the Minerals Industry, pp 301-312 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2009
  • PDF Size: 0.24 Mb.
  • Unique ID: P200906040

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