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| | Abstract | | In Japan, the stable supply of rare metal resources in the own country is recognized as an important issue of stringency of the resources in the future. On the other hand, disposed electric appliances contain valuable rare metals. However, before the Basic Law for Establishing the Recycling-based Society enacted in 2000, these wastes were dumped into landfills without preprocessing. And, rare metals were hardly detected in the leachate. From these facts, rare metals are expected to remain in the landfills. Therefore, we focused on grasping the metal-enriched zone in the water reclamation waste site. In the field experiment, we carried out the resistivity and the induced polarization (IP) measurements in the landfills, and obtained the resistivity and the chargeability profiles. In the laboratory experiment, the resistivity and the percent frequency effect (PFE) of each sample were measured. Also, we analyzed the metal concentrations with them. Based on these results, we examined whether the IP measurement is effective to grasp the metal-enriched zones in such a landfills. |
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