For a healthy living environment and
a better water environment...
Application for participation in the 40th National Johkasou Technical Research Conference and the 48th Johkasou Administrative Officers Research Meeting
Thank you very much for your numerous applications to participate.
Advance registration has now ended, but you can still register on the day of the event, so please come directly to the reception desk at the venue.
We look forward to your participation.
Notices from the Education Center
2026-10-09
2026-10-17
2026-09-10
“Monthly johkasou” September 2026 issue
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Completion Announcement of Courses/Classes
Other News
About the Japan Education Center of Environmental Sanitation
The Japan Education Center of Environmental Sanitation is the operating organization for the national exams for johkasou managers and technicians, based on the Purification Tank Act.
We work to raise public awareness about improvements in johkasou technology, training of related engineers, progress of continuing education, development of research on johkasou, technological development, and the treatment of drainage from johkasou ; we also work for the preservation of local living environments and improvement of public health and sanitation.