| Summary: | 碩士 === 國立臺北科技大學 === 環境工程與管理研究所 === 101 === With the reputation of "vitamins" of industry in the 21st century, rare earth elements are widely used in industries related to new technologies and green energy, serving as the curtail raw materials for our green energy industry with the industrial output value of two trillion.
This study reviewed literatures and applied the material flow perspective to calculate the output value for rare earth elements recovery from waste based on the calculation for product output value. Taiwan’s strength in strategic reserve of rare earth elements from resource recovery from waste lies in our mature processing technologies, multiple recycling channels while our weakness is the lack of natural resources, diplomatic hardship in the international community, insufficiency in professionals in the fields of mining and rare earth research, and restriction from environmental protection regulations. Based on data from Industrial Waste Report and Management System of Environmental Protection Administration, Executive Yuan and the search system of Customs Administration Ministry of Finance, this study estimated the material flow for rare earth resource in Taiwan’s waste lighting source industry. For tube light in 2011, Taiwan imported 9,323.61 Kg, exported 7,277.02 Kg and rare earth elements with approximately 79,223.13 Kg distributed in the market, 100,325.25 Kg disposed, 58.625.08 Kg recycled domestically and 41,700.17 Kg outside the recycling system。For LED YAG phosphors particles in 2011,Taiwan imported around 15,277,902 Kg, exported 30,527,922 Kg, used 627,515 Kg of rare earth elements with 353,121 Kg distributed in the market, 62,752 Kg disposed, 48,574 Kg processed domestically, and 14,178 Kg processed overseas. Our output value estimation for rare earth elements recovery from waste lighting source in Taiwan is 974 million per year, and the estimated output value for resource recovery from waste for LED YAG phosphors particles is 2740million per year.
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