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  6. [SDGs] Future-type ⭐ Water Wash Toilet Asuthia

[SDGs] Future-type ⭐ Water Wash Toilet Asuthia

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Water-flush toilet Asuthia

last updated:Jan 16, 2026

COLUMBUS PROJECT Co.,Ltd. Tokyo
COLUMBUS PROJECT Co.,Ltd. Tokyo
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Goodbye, pit toilets! Mountain areas and campsites now have flush toilets! ✨

✨ Custom-made options are available to meet customer needs! ✨ Both mobile and fixed types can be accommodated! Astia is a fully circulating flush toilet that cleans and recycles wastewater simply by supplying water during installation. Being a flush toilet, it processes everything within the system, so there is almost no need for vacuum trucks to empty it. ☞ Low maintenance costs Due to the circulating system, the running costs for sewage are nearly zero! Power consumption is also zero by utilizing solar power systems! ☞ Environmentally friendly with advanced wastewater treatment capabilities By utilizing a unique patented separation tank, the water quality after purification is such that fish can live in it, eliminating odors and being considerate of the environment. ☞ Contributing to the community even in case of disasters Even in situations where flush toilets cannot be used, such as during disasters, water outages, or power outages, you can safely use the toilet thanks to the solar power system! Mobile products can also be transported by truck, making them ideal for evacuation centers. ☞ Can be installed anywhere Event venues, festivals, construction sites, glamping facilities, and campgrounds. They can also be installed in mountainous areas where there is no power, water, or means of emptying.

    Hazardous material processingOther environmental equipmentSoil improvement
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[SDGs] Future-type ⭐ Water Wash Toilet Asuthia

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  • Related Link - https://asuthia-clmbs.hirameki7.site/
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basic information

◎Active during disasters with system replacement By replacing only the system while keeping existing toilets at disaster evacuation sites (parks, daycare centers, schools), it ensures safe usage even during power outages, water supply interruptions, or burst water pipes. Accommodating various requests By increasing the tank capacity and the size of the processing garden, it can handle up to 500 people per day, resulting in a larger garden area, while also being able to meet various requests. ◎Discreet processing system Since it is a garden, planting vegetation makes it visually appealing and allows it to blend in, so it does not look like a toilet processing system, making it an environmentally friendly option. ◎Power source switching is possible It typically uses the existing power source, but can switch to solar power during outages. ◎System switching between normal and disaster conditions When water is available, such as for water supply, it can be used for toilet flushing, and it is possible to change to a soil system for wastewater treatment without circulation. Additionally, it can switch to a circulation system during disasters.

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Applications/Examples of results

**Introduction of Achievements** ◆ Public Toilet at Suzuran Colony Parking Lot, Fuefuki City, Yamanashi Prefecture Due to being designated as a national park and being in a prohibited excavation area, the installation of a septic tank was not possible. However, upon request from Fuefuki City, we installed an Astia water-flush toilet (fixed soil water-flush toilet), which is currently in operation. Over 20,000 tourists visit annually, with more than 300 people using the toilet on busy days. ◆ Public Toilet at Shimen Mountain, Hayakawa Town, Yamanashi Prefecture At the foothills of Shimen Mountain (the head temple of the Nichiren sect) in Hayakawa Town, we received a request from Hayakawa Town to install an Astia fixed soil toilet. This mountain is also designated as one of Japan's 100 famous mountains, attracting tens of thousands of climbers each year. Previously, there was a non-flush, pit toilet system that required helicopter removal for emptying (costing about 6 million yen annually). Concerns about odor, hygiene, and running costs were raised. With the installation of a clean water-flush toilet, tourist numbers have increased, and the elimination of the need for emptying has led to cost reductions. It is currently in operation.

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COLUMBUS

COLUMBUS PROJECT Co.,Ltd. Tokyo

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We drive business growth by providing comprehensive support for sales, marketing, and content development. Our core expertise lies in the manufacturing industry, with a strong focus on industrial and medical equipment. We also offer specialized support in sales, marketing, and digital transformation (DX) for a wide range of B2B sectors, including construction, logistics, IT/DX, trading companies, and retail. Recognizing the heightened importance of the sales function in B2B, we actively champion the digitalization of sales processes in synergy with marketing initiatives. Collaborating with a robust network of professional partners, we successfully navigate and deliver on complex projects. For any inquiries or requests, please do not hesitate to reach out.

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