Johkasou: Japan's Decentralized Wastewater Treatment System

Event: Catalyzing Innovations and Digitization for Safe, Sustainable, Resilient, and Inclusive Water Management: Launch of e-Marketplace and Publications

Johkasou: Japan's Decentralized Wastewater Treatment System

19 March 2021

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In Japan, when building a house or building in the area where the sewer networks are not in place, a Packaged Aerated Wastewater Treatment Plant (PAWTP – ‘Johkasou’ in Japan), the standard on-site system in Japan, must be installed in order to treat all the wastewater generated in the house or building before discharging it to the public water bodies.

Geographical Focus:

Japan

Type of Content:

Learning Event

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