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Estimation of the environmental credit for the recycling of granulated blast furnace slag based on LCA

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  • Lee, Kun-Mo
  • Park, Pil-Ju

Abstract

The objective of this research was to quantify the environmental credit of the granulated blast furnace slag (GBFS) recycling, and then to propose a recycling option best suited for the maximization of the environmental credit. The most appropriate method for the quantification of the environmental credit resulting from the recycling of byproducts is the system expansion method. The system expansion method was applied to the recycling of GBFS from the iron and steel manufacturing process for the quantification of its environmental credit. GBFS has been recycled to raw materials for Portland cement, slag cement, slag powder and silicate fertilizer. Environmental credit of each recycling application was calculated from three different perspectives: life cycle inventory on CO2, characterized impact on global warming, and weighted impact of the product system based on the Eco-indicator 99 method. Maximum environmental credit of the GBFS recycling occurs when recycled to raw materials for slag cement and Portland cement.

Suggested Citation

  • Lee, Kun-Mo & Park, Pil-Ju, 2005. "Estimation of the environmental credit for the recycling of granulated blast furnace slag based on LCA," Resources, Conservation & Recycling, Elsevier, vol. 44(2), pages 139-151.
    • Handle: RePEc:eee:recore:v:44:y:2005:i:2:p:139-151
    DOI: 10.1016/j.resconrec.2004.11.004
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    References listed on IDEAS

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    1. Lee, Kun-Mo & Lee, Sang-Yong & Hur, Tak, 2004. "Life cycle inventory analysis for electricity in Korea," Energy, Elsevier, vol. 29(1), pages 87-101.
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    Cited by:

    1. Saade, Marcella Ruschi Mendes & Silva, Maristela Gomes da & Gomes, Vanessa, 2015. "Appropriateness of environmental impact distribution methods to model blast furnace slag recycling in cement making," Resources, Conservation & Recycling, Elsevier, vol. 99(C), pages 40-47.
    2. Chen, C. & Habert, G. & Bouzidi, Y. & Jullien, A. & Ventura, A., 2010. "LCA allocation procedure used as an incitative method for waste recycling: An application to mineral additions in concrete," Resources, Conservation & Recycling, Elsevier, vol. 54(12), pages 1231-1240.
    3. Moraes, Carlos Alberto Mendes & Kieling, Amanda Gonçalves & Caetano, Marcelo Oliveira & Gomes, Luciana Paulo, 2010. "Life cycle analysis (LCA) for the incorporation of rice husk ash in mortar coating," Resources, Conservation & Recycling, Elsevier, vol. 54(12), pages 1170-1176.
    4. Sayagh, Shahinaz & Ventura, Anne & Hoang, Tung & François, Denis & Jullien, Agnès, 2010. "Sensitivity of the LCA allocation procedure for BFS recycled into pavement structures," Resources, Conservation & Recycling, Elsevier, vol. 54(6), pages 348-358.
    5. Oluwafemi E. Ige & Oludolapo A. Olanrewaju, 2023. "Comparative Life Cycle Assessment of Different Portland Cement Types in South Africa," Clean Technol., MDPI, vol. 5(3), pages 1-20, July.

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