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Water Environment Control Lab
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A lab that deciphers the invisible components and microorganisms in water in order to protect the water environment.
AboutAbout the lab
For the water environment of the future
The Water Environment Control Lab addresses the question of how to control the urban water environment.
The lab places importance on taking an integrated view of water use, the water environment, and stormwater management in relation to artificial water flows such as water supply and sewerage systems.
Through environmental analysis and microbial analysis, the lab aims to understand water treatment technologies and improve them.
The lab is run by two faculty members, Professor Kurisu and Associate Professor Kasuga, and its students mainly belong to the Urban Environmental Engineering course in the Department of Urban Engineering.
Key terms
- Dissolved organic matter
- Organic matter dissolved in water. It is a mixture of many different components and can cause water quality problems.
- Disinfection byproducts
- Substances formed when tap water is disinfected with chlorine or similar disinfectants and the disinfectant reacts with components in the water.
- Biological activated carbon
- Activated carbon whose surface is colonized by microorganisms. It is used in advanced drinking water treatment to break down contaminants.
NewsLab news
A paper from the lab received the Japan Society on Water Environment Annual Outstanding Paper Award (Metawater Award)
A researcher received the Outstanding Presentation Award at WET2026
A doctoral student's paper received the WET Excellent Paper Award
Announcement of an online graduate school information session (includes time for a lab visit)
A researcher received the Japan Society on Water Environment Doctoral Research Encouragement Award (Organo Award)
ResearchResearch themes
The lab uses cutting-edge analytical and microbial analysis methods to clarify the composition of components dissolved in water and the roles of the microorganisms that support water treatment. It works on managing unregulated organic compounds and managing microorganisms in drinking water treatment and in water supply and distribution.
*Illustrative imageSearching for unknown components in water
The lab examines the composition of dissolved organic matter down to individual molecules using high-resolution mass spectrometry. It investigates changes during drinking water treatment, unknown disinfection byproducts, components that degrade lake water quality, and risks lurking in raw water for water supply.
*Illustrative imageManaging microorganisms in water treatment and water supply
Using molecular biology methods, the lab studies the microorganisms that work in biological activated carbon used in advanced drinking water treatment, as well as the regrowth of bacteria in water distribution pipes. It is also advancing research on microorganisms that anaerobically degrade contaminants in soil and groundwater.
MembersFaculty
The lab's members include faculty, administrative assistants, researchers, visiting researchers, doctoral, master's, and undergraduate students, and exchange students.As of 2026
- ProfessorFutoshi KurisuPublications ↗
- Associate ProfessorIkuro KasugaPublications ↗
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.
On a 4-point scale, ● marks where students' answers fall
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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: “Lake Kasumigaura from Kasumigaura City 04” Σ64 / CC BY 4.0 (cropped)
- Searching for unknown components in water: “Water testing contaminated water from lake” Environment Protection Authority Victoria / CC BY 4.0 (cropped)
- Managing microorganisms in water treatment and water supply: “Filling a glass with water in a kitchen sink closeup” Shixart1985 / CC BY 2.0 (cropped)
- Related lab (Urban Sustainability Lab (Fukushi Lab)): “Chicago-City-Hall-Green-Roof 01” Conservation Design Forum / CC BY-SA 4.0 (cropped)
- Related lab (Socio-Ecological Systems Lab): “Aeration tank activated sludge process STP Bengaluru India” Vraj Acharya, WELL Labs / CC BY-SA 4.0 (cropped)
- Related lab (Urban Water Systems Lab): “Irrigation and Water (20150827-NRCS-LSC-0091)” USDAgov / Public domain (cropped)
- Related lab (Urban Sanitary Engineering Lab): “Kanamachi-water purification plant-Edo river” Mayuno / CC BY-SA 3.0 (cropped)
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