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Resource Circulation and Waste Engineering Lab
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The lab studies resource circulation and the proper treatment of waste.
AboutAbout the lab
Exploring resource circulation and proper waste treatment through technology development and evaluation
The Resource Circulation and Waste Engineering Lab researches technology development for promoting resource circulation and the proper treatment of waste, with the aim of moving toward a sustainable society.
The lab also studies how to evaluate the rationality of these technologies, and works on both the hardware and software sides.
It also conducts research that clarifies the interrelationships among the global environment, human activity, and social systems, with the aim of forecasting future environmental problems and proposing designs for social systems.
The same site also introduces another division, the Resource Circulation IoT Systems Division.
Key terms
- Final disposal site (landfill)
- A facility where waste left over after recycling or incineration is finally buried and disposed of
- Life cycle assessment (LCA)
- An evaluation method that investigates and compares the environmental impact of a product or treatment across its entire life
- Remote sensing
- A technology that uses satellites, drones, and similar platforms to investigate the condition of the Earth's surface from a distance
NewsLab news
A student received the Excellent Presentation Award at the 2nd Stock-Type Social Systems Research Presentation Meeting of the Next-Generation Systems Research Group
A master's student received the Excellent Presentation Award at the 36th Annual Conference of the Japan Society of Material Cycles and Waste Management
Assistant Professor Teppei Komiya received the Encouragement Award from the Japan Society of Material Cycles and Waste Management
A master's student received the Excellent Presentation Award at the 1st Stock-Type Social Systems Research Group Presentation Meeting
A master's student received the Excellent Presentation Award at the Western Branch Research Presentation Meeting of the Japan Society of Civil Engineers
ResearchResearch themes
Aiming at a transition to a sustainable society, the lab develops technologies for promoting resource circulation and the proper treatment of waste, and studies how to evaluate their rationality. It works on both hardware and software, and also aims to forecast future environmental problems and propose designs for social systems.
*Illustrative imageResource circulation systems for waste
The lab develops technologies for recovering valuable metals from unused resources such as incineration residues, construction waste, and low-grade waste plastics, as well as technologies for making effective use of low-grade waste plastics. Through life cycle assessment (LCA) and evaluations of resource use and economic viability, it aims to build sustainable resource circulation systems for a circular economy.
*Illustrative imageEnvironmental protection and long-term stabilization of final disposal sites
The lab studies the physical, chemical, and biological changes that take place inside final disposal sites (landfills) for municipal and industrial waste, and the mechanisms by which these sites stabilize over the long term. Through leachate management, greenhouse gas emissions, and performance evaluation of liner systems, it works to advance safe and sustainable final disposal technology.
*Illustrative imageResource circulation using digital transformation (DX)
Using digital technologies, the lab works on predicting the amount of waste generated by each household, optimizing resource recovery, detecting lithium-ion batteries, and simulating circulation systems. It aims to realize a data-driven circular economy.
*Illustrative imageEnvironmental monitoring by remote sensing
The lab researches techniques that use satellite, drone, and aircraft remote sensing to investigate the environment of waste final disposal sites and resource circulation facilities. Using hyperspectral images, it estimates the distribution of landfilled waste and tracks land cover change, and it also works on developing technology for wide-area monitoring of greenhouse gases.
MembersFaculty
The members of the Resource Circulation and Waste Engineering Lab consist of an emeritus professor (visiting professor and research supervisor), faculty members, researchers, technical staff, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorHirofumi Hirofumi
- Assistant ProfessorTeppei Komiya
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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: “Waste disposal-landfill” Mumtahina Rahman / CC0 (cropped)
- Resource circulation systems for waste: “Waste and recycling facility outside Leeds railway station - geograph.org.uk - 6104946” Stephen Craven / CC BY-SA 2.0 (cropped)
- Environmental protection and long-term stabilization of final disposal sites: “Landfill Hawaii” Eric Guinther / CC BY-SA 3.0 (cropped)
- Resource circulation using digital transformation (DX): “Waste hall - in Iru Thermal Power Plant” Lauri Veerde / CC BY-SA 4.0 (cropped)
- Environmental monitoring by remote sensing: “Remote Sensing Illustration” Arkarjun / CC BY-SA 3.0 (cropped)
- Related lab (水圏環境工学研究室): “Pentwyn Reservoir in drought (geograph 7271833)” Martin Laverty / CC BY-SA 2.0 (cropped)
- Related lab (国土政策・防災研究室): “Tokyo Rinkai Disaster Prevention Park” 碧城 / CC BY-SA 3.0 (cropped)
- Related lab (環境流体力学研究室): “Surface waves” Roger McLassus / CC BY-SA 3.0 (cropped)
- Related lab (地震工学研究室): “View of the Five-storied Pagoda from the Lotus Pond, Tō-ji Temple, Kyoto” Jakub Hałun / CC BY 4.0 (cropped)
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