Evaluation of the economic feasibility of a processing plant for steelmaking slag.
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2016
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Resumo
The utilisation of steelmaking slag as recycled aggregate for concretes is a widely investigated solution for mitigating the expenditure
and environmental impacts of its storage. The Brazilian steel industry is investing in research and slag reprocessing practices, aiming
to reuse most of its metallic fraction and properly allocate the non-metallic fraction, saving energy and reducing mining impacts.
Research results demonstrate the technical and environmental feasibility of steel slag aggregates for civil construction. However, it is
essential to evaluate whether the processing of the slag is economically feasible for this purpose. Economic analysis of the processing
of steel slag was conducted through simulation – Monte Carlo method – in which it is possible to determine the risks and uncertainties
inherent to the project. The costs that comprise the proposed project, from design through construction and operation itself, were
estimated at US$2.8 million. The result of the simulation indicates economic feasibility of the project with 98% certainty, and an
estimated profit of around 42%.
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Metal recovery, Monte Carlo simulation, Sustainable aggregates
Citação
GONÇALVES, D. R. R. et al. Evaluation of the economic feasibility of a processing plant for steelmaking slag. Waste Management and Research, v. 34, n. 2, p. 107-112, fev. 2016. Disponível em: <http://journals.sagepub.com/doi/full/10.1177/0734242X15615955>. Acesso em: 20 jul. 2017.