Abstract
The Stockpile Landfill is a recently proposed waste management facility that aims to stock landfilled wastes with values that are currently low in order to later recycle them at higher values determined by the market and/or technical developments.
This paper focuses on four categories of stockpiled wastes : electronic substrate, shredder residue, incineration ash and plastic. Potential amounts and resource values are estimated for each category. Although electronic substrate already has a significant value, incinerated ash and shredder residue are estimated to be able to obtain a higher value if the value of metals rises by about 3 to 5 times. Our feasibility study on the Stockpile Landfill implies a new landfill business model. We believe that, due to Japan′s scarcity of natural resources, construction of a comprehensive system for the securing of resources, including a perspective on stockpiling, is imperative.
