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Eco‐efficiency of Advanced Loop‐closing Systems for Vehicles and Household Appliances in Hyogo Eco‐town

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  • Tohru Morioka
  • Kiyotaka Tsunemi
  • Yugo Yamamoto
  • Helmut Yabar
  • Noboru Yoshida

Abstract

The closing of material loops is a critical challenge in industrial ecology. It relies mainly on the utilization of recovered materials/parts/products in the original and principal production system while their original function is retained at the highest level possible. In this study, advanced loop‐closing systems for the recycling of end‐of‐life vehicles and electric household appliances are first designed in “Hyogo Eco‐town.” Second, a methodology for evaluating the eco‐efficiency of these systems is developed. Finally, the eco‐efficiency of the designed advanced loop‐closing strategies for the two products is evaluated, based on the results of materials flow analysis and life‐cycle assessment. The results show that, compared with conventional recycling systems, when an industrial complex and an advanced loop‐closing system for end‐of‐life vehicles are established, the total economic value increases by 114% and the eco‐efficiency in terms of the amount of direct material input is improved by 57%. This system permits the utilization of the by‐products, wastes, and recovered materials that originate from other industrial sectors as input to production activities. In the case of end‐of‐life electric household appliances, an advanced loop‐closing strategy to lengthen the product life with parts reuse improves the eco‐efficiency in terms of carbon dioxide (CO2) emissions by 4% compared with the conventional replacement of the appliance with a new product along with the material recycling option.

Suggested Citation

  • Tohru Morioka & Kiyotaka Tsunemi & Yugo Yamamoto & Helmut Yabar & Noboru Yoshida, 2005. "Eco‐efficiency of Advanced Loop‐closing Systems for Vehicles and Household Appliances in Hyogo Eco‐town," Journal of Industrial Ecology, Yale University, vol. 9(4), pages 205-221, October.
    • Handle: RePEc:bla:inecol:v:9:y:2005:i:4:p:205-221
    DOI: 10.1162/108819805775247909
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    Cited by:

    1. Yabar, Helmut & Hara, Keishiro & Uwasu, Michinori, 2012. "Comparative assessment of the co-evolution of environmental indicator systems in Japan and China," Resources, Conservation & Recycling, Elsevier, vol. 61(C), pages 43-51.
    2. Wang, Chao & Zhan, Jinyan & Xin, Zhongling, 2020. "Comparative analysis of urban ecological management models incorporating low-carbon transformation," Technological Forecasting and Social Change, Elsevier, vol. 159(C).
    3. Boughton, Bob, 2007. "Evaluation of shredder residue as cement manufacturing feedstock," Resources, Conservation & Recycling, Elsevier, vol. 51(3), pages 621-642.
    4. Beatriz de Souza Mello Gonçalves & Flávio Leonel de Carvalho & Paula de Camargo Fiorini, 2022. "Circular Economy and Financial Aspects: A Systematic Review of the Literature," Sustainability, MDPI, vol. 14(5), pages 1-41, March.
    5. T. E. Graedel & Barbara K. Reck & Luca Ciacci & Fabrizio Passarini, 2019. "On the Spatial Dimension of the Circular Economy," Resources, MDPI, vol. 8(1), pages 1-10, February.
    6. Gianmarco Bressanelli & Nicola Saccani & Marco Perona & Irene Baccanelli, 2020. "Towards Circular Economy in the Household Appliance Industry: An Overview of Cases," Resources, MDPI, vol. 9(11), pages 1-23, November.
    7. Fan, Jiongming & Hu, Shanying & Chen, Dingjiang & Zhou, Yucheng, 2017. "Study on the construction and optimization of a resource-based industrial ecosystem," Resources, Conservation & Recycling, Elsevier, vol. 119(C), pages 97-108.

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