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  6. 【SDGs】Mountain Soil-Based Water Flush Toilet Asuthia

【SDGs】Mountain Soil-Based Water Flush Toilet Asuthia

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last updated:Feb 24, 2026

COLUMBUS PROJECT Co.,Ltd. Tokyo
COLUMBUS PROJECT Co.,Ltd. Tokyo
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No power needed, no drainage required. This is a water-flush toilet designed specifically for mountainous areas.

Mountain soil-type flush toilets are an environmentally considerate toilet system created to provide the comfort of flushing without burdening nature in environments such as mountainous areas, natural parks, and hiking trails where water supply and sewage systems are not established. Utilizing a unique soil treatment technology that harnesses the natural purification power, wastewater is slowly processed underground, minimizing the impact on the natural environment. This system achieves a sustainable infrastructure that coexists with nature while maintaining the comfort of a flush toilet.

    Other environmental equipmentOther bio-environmental improvementOther environmental measures and recycling
スクリーンショット

【SDGs】Mountain Soil-Based Water Flush Toilet Asuthia

スクリーンショット 2025-11-27 153319.png
スクリーンショット 2025-11-27 153319.png SDGsトイレ.png スクリーンショット 2025-12-07 000348.png
  • Related Link - https://asuthia-clmbs.hirameki7.site/
  • Special site - Product/service details - https://pr.mono.ipros.com/columbusproject/product/

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◆Adaptation to Harsh Environments - Development of soil that does not freeze even below -30°C - Use of special pipes that do not burst even below -30°C ◆Long-term Maintenance-Free ◆Power supply compatible with various energy sources such as solar, wind, and hydroelectric power ◆Equipped with heaters, making it usable as a shelter 1. No need for water, sewage, or electricity Can be introduced in environments without infrastructure, such as mountainous areas. Installation can be minimized to avoid harming nature. 2. Soil treatment method in harmony with nature A "naturally derived treatment system" where a soil layer containing microorganisms purifies wastewater. It minimizes environmental impact without using chemicals. 3. Design that blends into mountainous areas With a calm exterior that does not disrupt the landscape, it naturally fits into mountain scenery. It has an appearance that is unobtrusive even in natural parks and hiking trails. 4. Comfortable structure that suppresses odor generation Maintains a clean and comfortable usage environment through natural ventilation and appropriate airflow design. 5. Functional in emergencies and isolated areas Since it does not rely on infrastructure, it is effective for securing toilets in emergencies. It can be operated in mountainous areas near evacuation routes or in hard-to-access locations.

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Can be installed in mountainous areas without power, water, or sewage disposal!

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  • 58b51bca1ce6a01e112f32f68494f513.png

    Strengths of the Astia Mountain Soil-Type Flush Toilet

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Asuthia Water Wash Toilet_Information

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【SDGs✨】~ A future-type toilet that can be placed without electricity or water has been born ~ We have started handling Astia!

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◆Asuthia - Astia - Beautiful flush toilets around the world! ✨ Custom-made options are available to meet customer needs! The fixed-type circulating soil toilet is an environmentally friendly toilet system that utilizes the natural purification power to treat wastewater. By harnessing the work of microorganisms living in the soil layer, it enables a stable flush toilet environment even in areas without proper water supply and sewage systems. It is fixedly installed in buildings and can be operated stably over long periods, making it ideal for natural parks, campgrounds, mountainous facilities, and public spaces. It provides a comfortable and clean space for users without burdening nature. ◎ System replacement for disaster response By replacing only the system while keeping existing toilets in disaster evacuation sites (parks, daycare centers, schools), it ensures safe usage during power outages, water supply interruptions, or pipe bursts. ◎ Power source switching is also possible Normally, it uses the existing power supply, but it can switch to solar power during outages. ◎ System switching between normal and disaster conditions When water is available, it can be used for toilet flushing without circulation, changing only the wastewater treatment to the soil system. During disasters, it can switch to a circulating system.

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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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