Developing a sustainable water and wastewater management plan based on water footprint in a part of a steel industry: a case of iron pellet production factory in southeastern Iran

Asghar Fallahi () and Masoud Taheriyoun ()
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Asghar Fallahi: Isfahan University of Technology
Masoud Taheriyoun: Isfahan University of Technology

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2025, vol. 27, issue 2, No 36, 3573-3592

Abstract: Abstract The steel industry is known for its high water consumption and wastewater production, making it crucial to evaluate the environmental sustainability of water use in this sector. A product's water footprint (WF) represents the total freshwater volume used to produce consumer goods. In this study, the WF concept was used to evaluate the sustainability of water consumption in a steel plant in southeastern Iran. The WF components, including blue and gray water, were calculated for the steel production process from extraction to pelletizing. The findings revealed that indirect WF, such as water used in energy production, was nearly equal to direct WF, representing water used in the production process. To reduce the WF, seven scenarios based on the 3Rs (Reduction, Reuse, Recycling) strategies were proposed. The M-TOPSIS method, a multi-attribute decision-making technique, was used to prioritize the scenarios based on their effectiveness in gray and blue WF reduction, financial worth (income–expense balance), and the priority of the 3Rs strategy. The results indicated that the scenario of wastewater reuse from nearby cities achieved the highest priority due to its significant impact on reducing blue WF (by 38%) at a reasonable cost. The findings demonstrate that the proposed methodology can be applied to similar production systems.

Keywords: Steel industry; Blue water footprint; Gray water footprint; M-TOPSIS; Sustainability; 3Rs strategies (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10668-023-04029-8

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