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What is johkasou

About Johkasou

About Johkasou

Stare at our waterfront (video)

Stare at our waterfront
Introducing the features of johkasou's domestic wastewater countermeasures and the mechanism of johkasou. (about 20 minutes, produced in 2004)

"johkasou reading book - trump card for domestic wastewater treatment in changing times"

Edited and published by Charitable Trust Shibayama Daigoro Memorial Merger Processing johkasou Research Fund Technology Working Group
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Public interest incorporated foundation
Japan Education Center of Environmental Sanitation
130-0024
２-23-３ Kikukawa, Sumida-ku, Tokyo
TEL: 03-3635-4880 (Switchboard),

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