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Takahashi Lab
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The lab explores waste recycling from the perspectives of both science and engineering and the social sciences.

AboutAbout the lab
Recycling, from both science and engineering and the social sciences.
The Takahashi Lab studies waste recycling from the perspectives of both science and engineering and the social sciences.
Recycling is essential for building a recycling-oriented society, yet progress remains slow.
The lab considers the reasons to be low trust in safety, the lack of appeal of recycled materials as products, and their negative image.
The lab regards recycling as an integrated science that requires everything from science and engineering to the social sciences, and pursues research on both technology development and human psychology.
Key terms
- Recycling-oriented society
- A society that reuses resources repeatedly instead of throwing them away, and produces as little waste as possible
- Environmental risk
- The likelihood and extent of harm to people and living things when hazardous substances are released into the environment
- Heavy metals
- Metals with high density, such as lead and cadmium; depending on the type, they can be harmful to people and the environment
ResearchResearch themes
The lab regards waste recycling as an integrated science that requires everything from science and engineering to the social sciences, and explores its potential and risks. Its work ranges from developing recycling technologies to assessing environmental burdens and environmental risks, the psychology of waste separation, and the influence of the media.
*Illustrative imageRecycling Technologies for Detoxification and Value Addition
The lab investigates the chemical and mineralogical properties of ash left after waste is burned, aiming to clarify the mechanisms that stop heavy metals from leaching out. Drawing on knowledge from dentistry, it also develops technologies that turn waste into environmental remediation materials.
*Illustrative imageAssessing Environmental Burdens and Environmental Risks
The lab assesses the burdens and risks that waste treatment, disposal, and recycling place on the environment, focusing on heavy metals, which are persistent and never disappear. It builds inventories of environmental emissions of toxic heavy metals and radioactive elements, and uses environmental fate models to examine even the reliability of the results.
*Illustrative imageSocio-Psychological Barriers to Recycling
The lab focuses on the psychology of sorting waste, especially the sense of bother it causes, and is developing methods to express that feeling quantitatively. It also studies trash can designs that make sorting feel less bothersome, and how separate collection systems should be organized.
*Illustrative imageHow the Media Affects Community Consensus
The lab examines how media, from newspapers to social networking services, have reported on renewable energy such as wind power and biomass power generation. It assesses the effects on public perception and on consensus among local residents.
MembersFaculty
The members of the Takahashi Lab are faculty, researchers, administrative assistants, and doctoral, master's, and undergraduate students.
- ProfessorFumitake TakahashiPublications ↗
- Associate ProfessorGONZALES Hazel Bantolino
- Project LecturerGUPTA Vinayak
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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: “Bales of PET bottles stacked” Grendelkhan / CC BY-SA 4.0 (cropped)
- Recycling Technologies for Detoxification and Value Addition: “Fly ash of a thermal power plant containing hollow cenospheres” Dr Anatoly / CC BY 4.0 (cropped)
- Assessing Environmental Burdens and Environmental Risks: “Leachate Pond” Victor787 at English Wikipedia / CC BY 3.0 (cropped)
- Socio-Psychological Barriers to Recycling: “Kallsortering” Johannes Jansson / CC BY 2.5 dk (cropped)
- How the Media Affects Community Consensus: “Harlock Hill Wind Farm - geograph.org.uk - 828640” Andrew Smith / CC BY-SA 2.0 (cropped)
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- Related lab (錦澤研究室): “Wind turbines on Kartal Dağı, Gaziantep 01” Zeynel Cebeci / CC BY-SA 4.0 (cropped)
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