Visualization of rare metal-enriched zones in waste landfills using induced polarization method

Kazuhiro Hidari, Masato Miyata, Sojiro Yamazaki, Kazuo Kamura*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We consider the studied landfill site an urban mine and developed a series of projects on metal endowment forms, nondestructive investigation methods for metal-enriched zones, metal extraction methods from enriched zones, and useful metal selection methods. This paper examines the exploration method. Induced polarization (IP) exploration was carried out at a T disposal site filled in the studied valley. In addition, three drillings were conducted in the studied exploration area. Using the core samples, IP parameters and metal contents were measured. Then, by comparing these data, we examined the effectiveness of the IP method for the visualization of metal-enriched zones in unsaturated landfills. The results of this experiment revealed that the iron-sulfide-enriched zone in the valley filling landfill can be identified by IP exploration. In addition, we clarified the types and contents of rare metals that coexist in iron sulfide. This process allows for further evaluation of landfills as a deposit.

Original languageEnglish
Article number95
Pages (from-to)1-9
Number of pages9
JournalEnvironments - MDPI
Volume7
Issue number11
DOIs
Publication statusPublished - 2020 Nov

Keywords

  • Electric prospecting
  • Induced polarization
  • Iron sulfide
  • Landfill
  • Metal-enriched zone
  • Rare metal
  • Urban mine
  • Visualization

ASJC Scopus subject areas

  • Environmental Science(all)
  • Ecology, Evolution, Behavior and Systematics
  • Renewable Energy, Sustainability and the Environment

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