Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

JPRSI Online Pavilion

Decentralized Wastewater Treatment Plant

Decentralized Wastewater Treatment Plant "Johkasou"

Water & Soil Water Quality Improvement / Water Management Technology Johkasou (Decentralized Waste Water Management System)

Johkasou is an on-site plant which treats domestic wastewater from toilets, baths, kitchen sinks and washrooms. Johkasou purifies domestic wastewater and discharges the purified water into drains and rivers. Johkasou contributes to the improvement of the water environment in the areas.