大央電設工業 List of Products and Services

The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. Since the odor from the toilet is completely eliminated, it can be used comfortably and without smell. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-efficient with a PTC surface heating element (far infrared method) Installation location: Higashitondengawa Park Golf Course, Sapporo City, Hokkaido Model: Bio R21-L type, single unit Options: Weight sensor system, urine separation system, 300L urine tank Comment: Installed in the parking lot of the park golf course. There are female-only and multipurpose (also for males) options available. *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. Since the odor from the toilet is completely eliminated, it can be used comfortably without any smell. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Ishizuchi Shrine, Saijo City, Ehime Prefecture Model: Bio R21-L type, 1 unit Comment: Installed at the famous trial chain, a place for the chain leading to the summit shrine of Ishizuchi Shrine. It is located at the small hut at the base of the third chain. Elevation: 1,900 m *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat generated from the fermentation of organic matter and heater heat, allowing for safe composting back into the earth ■ Energy-efficient with PTC surface heating elements (far infrared method) Installation location: Shio-kureba Park, Ueda City, Nagano Prefecture, at the top of the Mt. Mikagura Plateau Model: Bio R21-L type, 4 units Options: Weight sensor system, urine separation system, 300L urine tank Comment: Connected to the Kirigamine Highland Venus Line, attracting many tourists. In 2016, a urine separation and weight sensor system was installed to accommodate more users. Elevation: 2,100m *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Sahoro Resort Ski Area, Shintoku Town, Kamikawa District, Hokkaido Model: Bio R21-M type, 1 unit Comment: Installed at the lift station on the middle slope of the ski resort. The slopes that spread from the summit of Mount Sahoro offer a panoramic view of the Tokachi Plain on clear days. Ski resort elevation: 430 to 1,030 meters * For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat generated from the fermentation of organic matter and heater heat, allowing for safe composting back into the earth ■ Energy-efficient with PTC surface heating element (far infrared method) Installation location: Kita-Alps Kashimayari Mountain, Reiike Sanso Model: Bio R21-L type, 1 unit Comment: Installed for employee toilets and to process kitchen waste and used cooking oil in the mountain lodge. No issues for three years. Elevation: 2,400m *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The bedding is made from buckwheat husks. ■ Initial introduction of aerobic bacteria prevents bad odors (patented). ■ Human waste and toilet paper are treated with microorganisms. ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing it to be safely returned to the earth as compost. ■ Energy-saving with PTC surface heating element heater (far infrared method). Installation location: Kuzuryu Dam emergency shelter Model: Bio R21-M type, 1 unit Options: Hybrid power generation Comment: Elevation 1,200 m *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. Since the toilet odor is completely eliminated, it can be used comfortably without any smell. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria prevents bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Onna Village, Kunigami District, Okinawa Prefecture, inside the Graduate University for Advanced Studies tunnel Model: Bio R21-L type, 1 unit Options: Weight sensor system Comment: This university is an international research and educational institution aiming for the highest standards in natural sciences. *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, making it possible to return it to the earth as safe compost ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Public toilet at the 4th station of Mount Hakkai, Minamiuonuma City, Niigata Prefecture Model: Bio R21-L type, 4 units Options: Weight sensor system, urine separation system Urine tank 200L, Urine tank 300L Comment: A bio-toilet building has been added at the ropeway station of Mount Hakkai's 4th station. There are four 200L urine tanks and two 300L urine tanks. *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria prevents bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat generated from the fermentation of organic matter and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-saving with PTC planar heating element (far infrared method) Installation location: Yumoto Substation Model: Bio R21-M type, 1 unit Options: Separate toilet Comment: Installed within the Yumoto Substation facility. It is a toilet equipped with a washlet. The Hakone Tozan Railway runs nearby. *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element (far infrared method) Installation location: Hanshin Expressway Nikenchaya Ventilation Station Model: Bio R21-L type, 1 unit *For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

The "Bio R21" is a recycling-type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria prevents bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element (far infrared method) Installation location: 7th station of Mount Fuji, Fujiyoshida City, Yamanashi Prefecture Model: Bio R21-L type, 7 units Options: Weight sensor system, urine separation system, separate toilet Comment Installed at the 7th station of Mount Fuji along the Yoshida route. It features urine separation, with four 600L urine tanks installed, making it available for many climbers. Elevation: 2,640 m * For more details about the product, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment

At Daiou Electric Construction Co., Ltd., we offer optional products for the bio toilet "Bio R21," such as patrol lights (yellow and blue) and exhaust pipes specifically for urine tanks. The options can be freely combined depending on the installation location and conditions. We also provide disaster preparedness products, such as the HWR (Rainwater Handwashing Device), which purifies rainwater for handwashing and cleaning when tap water is unavailable, and a battery room that stores power from solar and wind energy. *For more details, please download the PDF or contact us.

• Disaster prevention supplies

"Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The bedding is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element heater (far infrared method) *For more details, please download the PDF or feel free to contact us.

• Other commercial buildings and service facilities
• Outdoor toilet unit
• Drainage and ventilation equipment