Notices from the Education Center

2026-10-09

"Monthly johkasou" 2026/10 issue

2026-10-17

Apology and Notice Regarding Delays in Issuing Johkasou Operator Licenses

2026-09-18

Monthly Johkasou Archive: Registered Small Merger Processing; Johkasou Overview; September 2026 Edition now available for purchase.

2026-09-10

“Monthly johkasou” September 2026 issue

2026-09-09

Regarding the venue for the 2027 National Johkasou Technical Research Meeting

2026-08-24

[Registration Closed] Information regarding registration for the 40th National Johkasou Technical Research Meeting and the 48th Johkasou Administrative Staff Research Meeting

2026-08-24

Results of the 2026 Johkasou Installation Worker Examination

2026-08-10

Announcement of the 171st Practical Seminar "Basic Knowledge of Wastewater Treatment - Fundamental Concepts of Wastewater Treatment and Basic Matters of Physical, Chemical, and Biological Processes Involved in Wastewater Treatment - (6th Session)"

2026-08-07

“Monthly johkasou” August 2026 issue

2026-07-23

(Member Page) Monthly Johkasou Back Issues: Lecture <Johkasou's Biology - Its Role and Field Judgment> has been posted.

2026-07-24

Regarding the selection results for the 2025 "Johkasou Research Encouragement Award"

2026-07-10

“Monthly johkasou” July 2026 issue

2026-07-07

[New Publication] Registered Small-Scale Merger Processing Johkasou Handbook '24-'25 Supplement Edition will be available for purchase from July 10th.

2025-06-17

Regarding the holding of the FY2026 Practical Seminar