| Budget Amount *help |
¥45,110,000 (Direct Cost: ¥34,700,000、Indirect Cost: ¥10,410,000)
Fiscal Year 2023: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2022: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2021: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2020: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
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| Outline of Final Research Achievements |
The aim of this study was to use harmless organic molecules (which can eventually be fermented and produced from waste organic matter) as metal leaching agents ("organic leaching agents") for waste PCBs and various waste catalysts (SC), which are called "urban mine" wastes. Cu leaching from PCBs was controlled by the nature of the amino acid side chains, and amino acids were found to be effective as Cu leaching agents or Cu selective precipitants. In SC leaching, selective recovery of critical metals was achieved by the use of amino acids and organic acids. These results have been published in peer-reviewed international journals and two patents have been filed.
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