Waste input-output analysis on "landfill mining activity"

Kazuyo Yokoyama, Takashi Onda, Shunsuke Kashiwakura, Tetsuya Nagasaka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

New environmental assessment model based on the Waste Input-Output analysis has been developed and applied for the "Landfill mining activity" for the recovery of valuable materials and energy resources and the saving of landfill site. In this study, the landfilled wastes are assumed to be treated by the gasification/melting processes. Two kinds of reactors, the fluidized bed type and the shaft furnace type, have been considered in this work as the typical gasification/melting processes adopted in Japan. Both processes generate electric power by the recovered heat and fly ash as waste to be landfilled. It has been found in this study that the both processes can reduce the total volume of waste and save the available landfill space. The shaft furnace type seems to have higher potential for decreasing volume of wastes because of less emission than the fluidized bed type. The results of scenario analysis have also indicated that the landfill miningactivity is effective for sustainable management of landfill sites.

Original languageEnglish
Pages (from-to)2582-2587
Number of pages6
JournalMaterials Transactions
Volume47
Issue number10
DOIs
Publication statusPublished - 2006 Oct 1

Keywords

  • Landfill mining
  • Landfilled waste
  • Waste input-output analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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