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Egashira Lab
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A lab working on separation processes that support sustainable development through chemical engineering.

AboutAbout the lab
Chemical process synthesis supporting sustainable development
The Egashira Lab develops and improves a wide range of chemical processes using chemical engineering methods, especially separation and purification engineering.
Through this accumulated work, the lab aims to contribute to sustainable development.
Its topics include wastewater treatment, biofuel production, separation of rare earth metals, and heavy oil processing.
Centered on separation operations such as solvent extraction and adsorption, the lab studies how to recover useful materials from wastewater and waste.
Key terms
- Chemical engineering
- The field of engineering concerned with designing and operating the equipment and overall processes that turn raw materials into products
- Solvent extraction
- A method of taking a target component out of a mixture by using differences in how well it dissolves in two liquids
- Adsorption
- An operation in which a substance is made to stick to the surface of a solid so that it is removed from a liquid or gas
ResearchResearch themes
Using chemical engineering methods, especially separation and purification engineering, the lab develops and improves a wide range of chemical processes, aiming to contribute to sustainable development. Its work includes removing antibiotics from wastewater, making activated carbon from waste, and separating rare earth metals.
*Illustrative imageCleaning wastewater with activated carbon made from waste
This research makes activated carbon from palm kernel shells produced at palm oil mills in Thailand and from cow dung in Mongolia, and uses it to purify wastewater from factories and gold mines. By making use of waste generated locally, the lab explores inexpensive ways to protect the environment.
*Illustrative imageRemoving antibiotics from pharmaceutical wastewater with duckweed
Antibiotics remaining in wastewater from pharmaceutical factories can give rise to antibiotic-resistant bacteria. The lab is investigating how to remove antibiotics from wastewater using duckweed, a common aquatic plant.
*Illustrative imageRecovering resources from factory wastewater
Wastewater from plating plants and resin additive plants contains resources such as copper and ammonium chloride. The lab recovers them using methods such as solvent extraction, and also estimates the costs, in order to design clean and economical processes.
MembersFaculty
The members of the Egashira Lab are faculty, master's students, and undergraduate students.
- Associate ProfessorRyuichi EgashiraPublications ↗
- Assistant ProfessorHiroaki HabakiPublications ↗
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: “Colonne distillazione” User:Luigi Chiesa / CC BY 3.0 (cropped)
- Cleaning wastewater with activated carbon made from waste: “Activated Carbon” Ravedave (talk) / CC BY 2.5 (cropped)
- Removing antibiotics from pharmaceutical wastewater with duckweed: “Common Duckweed (Lemna minor)” Mokkie / CC BY-SA 3.0 (cropped)
- Recovering resources from factory wastewater: “Die Gartenlaube (1892) b 030 1” various / Public domain (cropped)
- Related lab (中瀬研究室): “Rokkasho 2” Nife / CC BY-SA 3.0 (cropped)
- Related lab (西田研究室): “DFC 4386 A close-up of a pile of fresh cockles their ridged shells glinting with shades of brown and white” PattayaPatrol / CC BY-SA 4.0 (cropped)
- Related lab (石塚研究室): “HFIR Refueling July )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (笠井研究室): “Top of Atmosphere” NASA Earth Observatory / Public domain (cropped)
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