Circulating flush toilet system - asuthia [RISCON TOKYO 2026]

asuthia introduced its self-contained circulating flush toilet system at RISCON TOKYO 2026. Headquartered in Kofu, Yamanashi Prefecture, the company develops and provides a fully closed-loop flush toilet that does not require either sewer or water infrastructure or commercial power.

The core exhibit is a circulation treatment system that breaks down waste, turns it into clean water, and returns it to the toilet as flushing water. The system can be connected to any temporary toilet or existing toilet, and its defining feature is that it does not require water or electricity.

The company is targeting use at disaster evacuation sites, tourist destinations, and other locations where securing a water source or power supply is difficult. Including a mobile circulating toilet, it aims to broaden how the system can be used depending on the installation environment and to provide a toilet environment that can be used with confidence.

Contact the company

asuthia

• Headquarters 1-7-14 Asahi, Kofu-shi, Yamanashi-ken, 400-0025, Japan
• Established -
• Employees -
• Official website https://asuthia.net/
• Business areas asuthia develops and provides a fully closed-loop flush toilet that does not require sewer or water infrastructure or commercial power. It offers a system that makes flush toilets usable in places where securing a water source or power supply is difficult, such as disaster preparedness sites and tourist destinations, by breaking down waste, returning it to clean water, and reusing that water as flushing water.
• Main products and services Asuthia circulating flush toilet, mobile circulating toilet