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| | Abstract | | Before 2000, useful metal contained in electric wastes, such as home appliances, was disposed into landfills without proper separation. However, metals were seldom detected in the leachate. So, these metals remain in the landfills, and some metals may form the metal-enriched zones with the form of sulfides depending on the characteristics of the metal and environment in the fills. Therefore, we has applied the induced polarization (IP) measurement to identify the metal-enriched zone, and examined its effectiveness based on the results of field measurements on landfills and laboratory experiments using drilled samples. In this paper, we summarize the effectiveness of the IP measurement by analyzing the relationship between the metal-enriched zone and the IP effect. |
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