Difference of impurity elements in recycled steel contaminated by non-functional recycling of other materials among countries

Ichiro Daigo

The University of Tokyo

Sustainable use of materials is my goal. So far, many MFA studies have been conducted. Markov chain model (stochastic model), pinch technique (optimization tool), population balance model (probability distribution) and some models have been applied in the MFA field. Recycling of metals are one of my great interests. Recently, resilience, supply chain risks, and criticality are within my scope.


Steel is known as one of the most highly recyclable materials. When steel is recycled after recovery from end-of-life products as a scrap, other materials are unintentionally mixed into the recovered steel. Due to the... [ view full abstract ]


  1. Ichiro Daigo (The University of Tokyo)
  2. Leo Fujimura (The University of Tokyo)
  3. Hideo Hayashi (Tokyo Metropolitan Industrial Technology Research Institute)
  4. Eiji Yamasue (Ritsumeikan University)
  5. Tran Duc Huy (Hanoi University of Science and Technology)
  6. Benjamin Sprecher (Yale University,)
  7. Yoshikazu Goto (The University of Tokyo)

Topic Areas

• Socio-economic metabolism and material flow analysis , • Circular economy


ThS-20 » International comparisons of sustainable systems (13:45 - Thursday, 29th June, Room E)

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