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Resource Recycling Engineering Lab
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The lab studies technologies for separating and recovering useful metals from waste and unused resources.
AboutAbout the lab
Resource recycling technology: the key to a circular society.
The Resource Recycling Engineering Lab studies technologies for separating and recovering useful substances from natural resources and waste with little effort and energy.
To build a circular society, the "urban mine," a hub for recovering and recycling urban waste as a resource, is the key.
The lab conducts basic and applied research on recycling and waste-to-resource technologies, as well as advanced separation and refining technologies for making use of unused resources.
The lab also works on environmental conservation technologies that build on these results, and on research to add value to resources.
Key terms
- Urban mine
- The idea of treating waste accumulated in cities, such as discarded home appliances and electronic devices, as a "mine" of metal resources
- Flotation
- A separation method in which finely crushed particles attach to bubbles in water and float, separating them from particles that do not attach
- Critical metals
- Metals that are essential to industry but at risk of supply disruption, such as rare earths
ResearchResearch themes
The lab's main themes are "developing resource recycling technologies, the key to a circular society," "building urban mines," and "advanced recovery of critical metals from refractory ores and mine waste." Centered on technologies that separate target components by exploiting differences in material properties, the lab conducts research from fundamentals through to practical application.
*Illustrative imageSeparating by differences in surface properties
The lab studies technologies that separate and recover target components by exploiting differences in the surface chemical (interfacial) properties of each material. The methods covered include flotation and in-liquid granulation.
*Illustrative imageRecovering gold and rare earths
The lab studies technologies for recovering useful components such as gold and rare earths, which are essential for achieving a carbon-neutral society, from recycling feedstock and mine waste.
MembersFaculty
- ProfessorMayumi Ito
- Associate ProfessorPARK Ilhwan
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Froth flotation” Andreslan / Public domain (cropped)
- Separating by differences in surface properties: “Prominenthill-flotation” Geomartin / CC BY-SA 4.0 (cropped)
- Recovering gold and rare earths: “Residuo electronico tarjeta madre colombia” Crista Castellanos / CC BY-SA 4.0 (cropped)
- Related lab (Resource Circulation Materials Lab): “Laitier de haut fourneau à Fos-sur-Mer” Borvan53 / CC BY-SA 4.0 (cropped)
- Related lab (Waste Disposal Engineering Lab): “Naka Waste Incineration Plant 01” Taisyo / CC BY-SA 3.0 (cropped)
- Related lab (Circular Innovation Lab): “Steel recycling bales” blahedo / CC BY-SA 2.5 (cropped)
- Related lab (Circular Symbiosis Systems Lab): “Biogas Photovoltaik Wind” Florian Gerlach (Nawaro) / CC BY-SA 3.0 (cropped)
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