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Urban Water Systems Lab
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The lab studies water quality surveys and water treatment technologies to help cities use water safely.
AboutAbout the lab
Maximizing the value of water in a sustainable way
The Urban Water Systems Lab conducts field surveys of water environments, develops water treatment technologies, and studies how water supply should be designed.
Water has value in both quality and quantity, and it is essential for healthy lives and sound social activity.
The lab aims to maximize that value in a sustainable way.
The lab works on elucidating the mechanisms of water pollution, developing new drinking water treatment technologies, and proposing appropriate water quality indicators.
Key terms
- Advanced drinking water treatment
- Treatment that uses membrane filtration, adsorbents, ultraviolet light, and similar methods to remove substances that are hard to remove with ordinary drinking water treatment
- Health-related microorganisms
- Protozoa, bacteria, and viruses in water that cause waterborne infectious diseases such as diarrheal disease
- CRISPR diagnostics
- A simple nucleic acid testing method that can determine by eye, using a test strip, whether a target microorganism is present
NewsLab news
Received the Best Innovation Award at an international conference
Lecturer Torii received the Willie Grabow Young Investigator Award
Professor Oguma was appointed Special Assistant to the Dean of the Graduate School of Engineering
ResearchResearch themes
As urban densification increases water demand, there is also a need to respond to the deteriorating quality of source water and the growing diversity of contaminants. By elucidating the mechanisms of water pollution, developing new drinking water treatment technologies, and proposing appropriate water quality indicators, the lab aims to achieve a safe water environment and a stable water supply.
*Illustrative imageAdvanced Drinking Water Treatment
The lab works on advanced drinking water treatment such as membrane filtration, nanoscale adsorbents, and ultraviolet (UV) treatment. It focuses on removing substances that are hard to remove, such as fluoride in groundwater and humic substances in water.
*Illustrative imageHealth-Related Microorganisms in Water
Protozoa, bacteria, and viruses in water cause waterborne infectious diseases, so removing and inactivating them in water treatment is essential. Using molecular biology methods, the lab investigates the mechanisms of inactivation.
*Illustrative imageOn-Site Testing for Microorganisms in Water
PCR, which is widely used for microbial testing, requires expensive equipment and skilled operation, so it can be performed in only limited places. The lab is extending CRISPR-based diagnostics, which can be read on a test strip, to water testing.
*Illustrative imageUrban Water Systems in Asia
This research targets urban water in Asian cities, such as those in Vietnam and Thailand. The lab examines the factors that affect river water quality, as well as fluoride contamination of groundwater and its effects on health and on water supply.
MembersFaculty
The members of the Urban Water Systems Lab are faculty members, doctoral and master's students, researchers, technical staff, and secretaries.As of 2025
- ProfessorKumiko OgumaPublications ↗
- Professor珠坪 一晃
- LecturerShotaro ToriiPublications ↗
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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: “Irrigation and Water (20150827-NRCS-LSC-0091)” USDAgov / Public domain (cropped)
- Advanced Drinking Water Treatment: “Reverse osmosis membrane element layers” David Shankbone / CC BY 3.0 (cropped)
- Health-Related Microorganisms in Water: “E coli at 10000x, original” Photo by Eric Erbe, digital colorization by Christopher Pooley, both of USDA, ARS, EMU. / Public domain (cropped)
- On-Site Testing for Microorganisms in Water: “Acidaminococcus sp. Cas12a PDB 5B43” Deposition authors: Yamano, T., Nishimasu, H., Hirano, H., Nakane, T., Ishitani, R., Nureki, O.; Visualization author: Synpath / CC0 (cropped)
- Urban Water Systems in Asia: “Vista de Ciudad Ho Chi Minh desde Bitexco Financial Tower, Vietnam, , DD 04” Diego Delso / CC BY-SA 3.0 (cropped)
- Related lab (環境
デザイン研究室 (Landscape & Environmental Design)): “Aerial view of Lower Manhattan and Battery Park at dusk” SebastianBlumeArt / CC BY-SA 4.0 (cropped) - Related lab (水環境制御研究室): “Lake Kasumigaura from Kasumigaura City 04” Σ64 / CC BY 4.0 (cropped)
- Related lab (都市サステイナビリティ学研究室(福士研究室)): “Chicago-City-Hall-Green-Roof 01” Conservation Design Forum / CC BY-SA 4.0 (cropped)
- Related lab (都市計画研究室): “JP-Tokyo-Area-Taken-From-Airplane” Kanchi1979 / CC BY-SA 4.0 (cropped)
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