Niigata Prefecture will host the "Bio-Laundry," a water reclamation system using microorganisms, at the 2025 Osaka-Kansai World Expo. Water reclamation system "Bio Laundry" using microorganisms will be exhibited July 13-17.

Uni-Trike Corporation (Head office: Niigata City, Niigata Prefecture; President: Hideki Murakami) will exhibit at the Japan International Exposition (Osaka-Kansai Expo) from July 13 (Sunday) to July 17 (Thursday), 2025, for five days as a participating company in the Niigata Prefecture event "Colors of Niigata: Traditional Culture and Craftsmanship". At the exhibition booth, a unit-type water changer(R) "Bio Laundry" that recycles water using microorganisms will be displayed and offered to visitors as a place to wash their hands.

Unit-type Water Changer(R) "Bio Laundry

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■Niigata Prefecture's Event "Colors of Niigata: Traditional Culture and Craftsmanship

To take advantage of the Osaka-Kansai Expo as an opportunity to raise awareness of Niigata Prefecture and its products and to appeal to a larger exchange population, the exhibition will consist of three zones to present the appeal of colorful prefectural products, such as Nishikigoi, snow, fireworks, traditional crafts, and other products.

(1) Introduction Zone: Promoting Niigata's unique regional resources related to snow and traditional culture

(2) Experience Zone: Hands-on exhibits of traditional crafts, fireworks, Nishikigoi, etc.

(3) Interaction zone: Booths where visitors can experience the attractions of Niigata City, Itoigawa City, and Tsunan Town

About our exhibition

In the introduction zone of "Colors of Niigata: Traditional Culture and Craftsmanship," we will exhibit our unit-type water changer(R) "Bio Laundry," which utilizes microorganisms to regenerate water and was used in the areas affected by the Noto Peninsula Earthquake of 2024. This water reclamation system uses microorganisms to clean water without the use of ordinary filtration filters, etc. It can reclaim water for daily use at the standard level of bath water (not potable according to Japanese standards) after about 30 minutes of circulation. It is an SDGs-conscious product that requires almost no maintenance and produces no filtration filters or other waste.

At the exhibition venue, we will actually provide it as a hand washing station, so please experience firsthand the possibilities of recycled water treated with microorganisms.

Photo of installation at the Noto Peninsula Earthquake

Installation site at Expo '70 in Osaka, Japan

Our thoughts

We have been committed to developing products that contribute to environmental improvement by utilizing our accumulated technologies and knowledge. We see our participation in the Expo as an important opportunity to show the world the technological strength of Made in Niigata and to further develop our business. We hope that this water reclamation technology, which is designed to save power and can be operated with solar panels, will help to solve the water problems occurring around the world.

Outline of "Colors of Niigata: Traditional Culture and Craftsmanship

Organizer: Industry and Labor Department and Agriculture, Forestry and Fisheries Department, Niigata Prefecture

Dates: July 13 (Sun.) - 17 (Thu.), 2025

Venue: Expo '70 Gallery WEST, Osaka, Japan

Event Outline: https://www.pref.niigata.lg.jp/uploaded/life/757105_2376157_misc.pdf

Company Profile

Company name: Uni-Trike Corporation

Location: Terao City 7, 2-4-46 Terao-dai, Nishi-ku, Niigata City, Niigata Prefecture

Representative: Hideki Murakami

Establishment ： February 2004

Capital ： 5 million yen

Business : Planning, sales, and rental of environmental improvement products

URL ： https://unique-office.com/