Kawai Water Purification Plant Redevelopment Project, Yokohama Waterworks Bureau

Japan's first "PFI" project for the entire treatment facilities and the nation's largest membrane filtration plant

Water Next Yokohama Co., Ltd., a special purpose company whose largest shareholder is METAWATER Co., Ltd., has concluded a business contract for "Kawai Water Purification Plant Redevelopment Project" with Yokohama Waterworks Bureau on February 27, 2009, and the project was commenced on April 1 of the same year. The project is the nation's first private finance initiative (PFI) project that the entire water treatment facilities are updated and managed under an infrastructure organization system capitalizing on private fund.
METAWATER takes charge of manufacture, mechanical/electrical work, and maintenance and control of the membrane filtration facility. The Kawai Water Purification Plant will be the largest-scale membrane filtration plant in Japan.

Primary Features of the Project

• Adoption of no breakage ceramic membrane
• Most effectively utilizing the water level difference
• Energy saving and reduction of CO₂ emissions utilizing solar power
• 100% sludge recycling reuse

Outline of the Project