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We would like to introduce a case study of an underwater water purification system project for the "Building Adjustment Pond Purification" at the Tokyo Mitsubishi UFJ Chiba Center Building. The method involves collecting water from the top of the device (downward flow) and discharging the purified water from the central pump. The structure is designed with consideration for living organisms, ensuring that fish are not caught. The purification objective is to reduce BOD, and the total water surface area was 3,124 m². 【Case Overview】 ■ Project Name: Tokyo Mitsubishi UFJ Chiba Center Building (Chiba Prefecture) ■ Purification Objective: BOD Reduction ■ Total Water Surface Area: 3,124 m² ■ Average Water Depth: 1.5 m ■ Number of Units Installed: 4 *For more details, please refer to the PDF document or feel free to contact us.

• Port supplies
• Septic tank equipment

We would like to introduce a case study of an underwater purification system for the "Golf Course Landscape Pond Purification" at Hitachidai Golf Club. This system is installed at the bottom of a pond with a water depth of 1.0m to 5.0m. Since the facility is located at the bottom of the pond, it is not visible from outside and is aesthetically pleasing. The purpose of purification is to suppress the occurrence of blue-green algae, and the total water surface area was approximately 23,661 m². 【Case Overview】 ■ Project Name: Hitachidai Golf Club (Ibaraki Prefecture) ■ Purification Purpose: Suppression of blue-green algae occurrence ■ Total Water Surface Area: Approximately 23,661 m² ■ Average Water Depth: 3m ■ Number of Units Installed: 3 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of an underwater purification system for water quality improvement in the "Golf Course Landscape Pond Purification" at Kyoga-no Golf Club. The purification aims to suppress the occurrence of algae. The total water surface area is 2,867 m², with an average water depth of 3 m, and one unit was installed. Since the facility is located at the bottom of the pond, it is not visible from outside and is aesthetically pleasing. Additionally, because it is installed at the bottom of the pond, it does not require land for facilities on land. 【Case Overview】 ■ Project Name: Kyoga-no Golf Club (Mie Prefecture) ■ Purification Purpose: Suppression of algae occurrence ■ Total Water Surface Area: 2,867 m² ■ Average Water Depth: 3 m ■ Number of Units Installed: 1 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of the underwater purification system for the "Biotope Pond Purification" at the Ikomaikan in Togo Town. This purification project aims at environmental protection, with a total water surface area of 100m², an average water depth of 1m, and one unit installed. Since it is installed at the bottom of the pond, it does not require land for facilities above ground. 【Case Overview】 ■ Project Name: Ikomaikan, Togo Town (Aichi Prefecture) ■ Purpose of Purification: Environmental Protection ■ Total Water Surface Area: 100m² ■ Average Water Depth: 1m ■ Number of Units Installed: 1 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

On our company website, we introduce project examples of underwater water purification systems. The method involves collecting water from the top of the device (downflow) and discharging the purified water from the central pump, ensuring that fish are not caught and taking biological considerations into account. Backwashing is typically performed from land, and by doing it once every 1 to 3 years, better purification functionality can be maintained. You can find more details about the examples through the related links, so please take a look. 【Features】 ■ A method for installation at the bottom of ponds with a water depth of 1.0m to 5.0m ■ The facility is located at the bottom of the pond, making it invisible from the outside and aesthetically pleasing ■ Since it is installed at the bottom of the pond, it does not require land for facilities on land *For more details, please refer to the PDF materials or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a floating purification system in the "Adjustment Pond Purification Experiment" at Gongendo. The purpose of purification is to suppress algal blooms, with a total water surface area of 800m2. The average water depth is 2.5m, and one unit was installed. It actively purifies heavily polluted surface water (approximately 2m). Additionally, purification and backwashing are performed automatically, preventing performance degradation due to clogging. 【Case Overview】 ■ Project Name: Gongendo (Saitama Prefecture) ■ Purification Purpose: Suppression of algal blooms ■ Total Water Surface Area: 800m2 ■ Average Water Depth: 2.5m ■ Number of Units Installed: 1 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a floating water purification system for the "Golf Course Landscape Pond Purification" at Kyoga-no Golf Club. This efficient purification method collects water from the outer perimeter of the device towards the central collection body (centripetal flow). It is designed with great consideration for living organisms, preventing the entrapment of fish and other aquatic life. The purification objective is to suppress the occurrence of algae blooms, with a total water surface area of 12,885 m² and an average water depth of 3 m. 【Case Overview】 ■ Project Name: Kyoga-no Golf Club (Mie Prefecture) ■ Purification Objective: Suppression of algae blooms ■ Total Water Surface Area: 12,885 m² ■ Average Water Depth: 3 m ■ Number of Units Installed: 23 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a floating water purification system used in the "Water Purification Facility" at Tone Airport. It actively purifies heavily polluted surface water (approximately 2m deep). The purification and backwashing are performed automatically, preventing performance degradation due to clogging. The purpose of purification is to reduce COD, with a channel width of 34m and an average water depth of 4.5m. 【Case Overview】 ■ Project Name: Tone Airport (Ibaraki Prefecture) ■ Purification Purpose: COD Reduction ■ Channel Width: 34m ■ Average Water Depth: 4.5m ■ Number of Units Installed: 32 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment
• Port supplies

We would like to introduce a case study of a floating water purification system for the "river purification" of the Kitajukken River. The purification objectives are to reduce SS and BOD, with a river width of 18.6m and an average water depth of 1.8m. A total of 10 units are installed. Since purification and backwashing are performed automatically, there is no performance degradation due to clogging. Additionally, because it is a floating system, it does not require land for facilities, resulting in excellent cost performance. 【Case Overview】 ■ Project Name: Kitajukken River (Tokyo) ■ Purification Objectives: Reduction of SS and BOD ■ River Width: 18.6m ■ Average Water Depth: 1.8m ■ Number of Units Installed: 10 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a floating project case of the water quality purification system at the "River Simple Purification Device" of the Furukawa Bypass. The purification objective is to reduce BOD and SS, with an average water depth of 1.0m. A total of 5 units have been installed. This method has a high purification efficiency and does not involve fish or other aquatic life, making it very considerate of the ecosystem. [Case Overview] ■ Project Name: Furukawa Bypass (Mie Prefecture) ■ Purification Objective: Reduction of BOD and SS ■ Average Water Depth: 1.0m ■ Number of Units Installed: 25 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a floating water purification system project at the Kinbu Dam. The floating type is an efficient purification method that collects water from the outer perimeter of the device towards the central collection body (centripetal flow). Additionally, it does not involve fish or other aquatic life, demonstrating a structure that is very considerate of living organisms. There are many other examples available, so please take a look at the related links. 【Features of the Floating Type】 ■ Actively purifies heavily polluted surface water (approximately 2m) ■ Utilizes many solar power generation methods in addition to commercial power sources ■ By using an airlift pump for water lifting, it is possible to supply oxygen to the water area along with purification ■ An efficient purification method ■ Does not involve fish or other aquatic life, demonstrating a structure that is very considerate of living organisms *For more details, please refer to the PDF materials or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a floating water purification system for "lake purification" at the Natural Coexistence Research Center of the Public Works Research Institute. The purpose of purification is to suppress the occurrence of blue-green algae. The total water surface area is 3,200 m², with an average water depth of 1.5 m. The structure is designed to float on floats and is primarily installed in water bodies with a depth of 2 m or more, but it can also be adapted for depths below that (1 m). 【Case Overview】 ■ Project Name: Natural Coexistence Research Center, Public Works Research Institute (Gifu Prefecture) ■ Purification Purpose: Suppression of blue-green algae occurrence ■ Total Water Surface Area: 3,200 m² ■ Average Water Depth: 1.5 m ■ Number of Installations: 1 unit *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

On our company website, we introduce case studies of floating water purification system projects. The structure is designed to float on a buoy, primarily installed in water depths of 2 meters or more, but it can also be adapted for shallower areas (1 meter deep). Since purification and backwashing are performed automatically, there is no performance degradation due to clogging. Additionally, because it floats on the water, it does not require land for facilities, offering excellent cost performance. You can view the details of the case studies through the related links, so please take a look. 【Features】 ■ Actively purifies heavily polluted surface water (approximately 2m) ■ By using an airlift pump for water lifting, it can also supply oxygen to the water body along with purification ■ An efficient purification method *For more details, please refer to the PDF materials or feel free to contact us.

• Septic tank equipment

Introducing a case study of an onshore water purification system project at Fujigaoka Recreation Square. The purification goal is water transparency, with a treatment capacity of 70m²/day and a single installation unit. Being an onshore facility, it can accommodate shallow water areas and scenic features such as streams, making water quality management easy. 【Case Overview】 ■ Project Name: Fujigaoka Recreation Square (Nagoya City) ■ Purification Goal: Water Transparency ■ Treatment Capacity: 70m²/day ■ Installation Units: 1 *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of an onshore water quality purification system at the "Source of the Stream" in Yamanasu Park. The purification objectives are BOD removal and ensuring clarity. The treatment capacity is 2000m3/day with a two-stage installation. By installing the system on land, it becomes possible to purify any water body, and by using multiple stages, purification progresses gradually from the upper stage. 【Case Overview】 ■ Project Name: Yamanasu Park (Gifu Prefecture) ■ Purification Objectives: BOD removal, ensuring clarity ■ Treatment Capacity: 2000m2/day ■ Number of Installations: 2 stages *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a land-based water quality purification system for wastewater treatment in hydroponic cultivation at Kamiai Farm 21. The purification objectives are the removal of BOD and SS. The treatment capacity is 1200 m³/day, and there are 2 stages of installation. By installing the system on land, it becomes possible to purify any type of water body. 【Case Overview】 ■ Project Name: Kamiai Farm 21 (Hokkaido) ■ Purification Objectives: Removal of BOD and SS ■ Treatment Capacity: 1200 m²/day ■ Number of Installations: 2 stages *For more details, please refer to the PDF materials or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of the land-based water purification system at the "Sewage Secondary Treatment Facility" in Okutone Amenity Park. The purification goal is to reduce BOD, with a treatment capacity of 7,500 m³/day and a configuration of 5 stages. By implementing multiple stages, it is possible to flexibly respond to the desired water quality in large volumes. 【Case Overview】 ■ Project Name: Okutone Amenity Park (Gunma Prefecture) ■ Purification Goal: BOD Reduction ■ Treatment Capacity: 7,500 m³/day ■ Configuration: 5 Stages *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

We would like to introduce a case study of a land-based water purification system at the "sewage secondary treatment facility" located in the Maizuru Parking Area. The purification objectives are the reduction of BOD, COD, T-N, and T-P. The treatment capacity is 144 m³/day. By installing the system on land, it becomes possible to purify any type of water body. 【Case Overview】 ■ Project Name: Maizuru Parking Area (Kyoto Prefecture) ■ Purification Objectives: Reduction of BOD, COD, T-N, and T-P ■ Treatment Capacity: 144 m²/day ■ Number of Units Installed: 1 stage *For more details, please refer to the PDF document or feel free to contact us.

• Septic tank equipment

On our company website, we introduce case studies of land-based water purification system projects. By installing the equipment on land, purification of any water body is possible. The purification progresses gradually from the upper stage through multi-staging. Typically, water is drawn up using pumps, but it is also possible to allow natural flow by keeping the water level the same as that of a pond. You can find more details about the case studies through the related links, so please take a look. 【Features】 ■ By using multi-staging, it can flexibly respond to the desired water quality in large quantities. ■ As it is a land-based facility, it can accommodate any type of water body. ■ It is effective for tertiary treatment at sewage treatment plants and wastewater treatment from agricultural facilities. ■ In the case of an airlift pump system, oxygen is supplied to the water body along with purification. ■ Being a land-based facility, it allows for easy management of water quality. *For more details, please refer to the PDF materials or feel free to contact us.

• Other commercial buildings and service facilities
• Septic tank equipment

The "Bio Water Quality Purification System" forms a microbial film on the surface of charcoal, allowing raw water to come into contact with it to decompose nutrients in the water that cause pollution and odors, thereby improving water quality in an environmentally friendly manner. It operates automatically with a low-power pump and has a built-in backwash device, ensuring that the purification effect does not diminish. The structure only takes in water around the device, so it does not entrap fish or other aquatic life. 【Features】 ■ Environmentally considerate and highly safe due to the contact oxidation method using microorganisms ■ Utilizing thinned wood for the charcoal allows for resource recycling ■ Used charcoal can be repurposed as soil improvement material, avoiding environmental burdens ■ Using solar power or similar sources eliminates electricity costs *For more details, please refer to the PDF document or feel free to contact us.

• Water and sewerage pipe fittings
• Septic tank equipment

Charcoal purification is an eco-friendly purification method that forms a microbial film on the surface of charcoal, allowing it to come into contact with raw water. This process breaks down nutrients in the water that degrade water quality, such as pollutants and odors, thereby improving water quality. It can enhance transparency and reduce or eliminate BOD, SS, chlorophyll a (algae), and odors in reservoirs, lakes, retention ponds, and garden ponds. For more details, please contact us or download the catalog.

• Soil improvement material

Charcoal purification is an eco-friendly purification method that forms a microbial film on the surface of charcoal, allowing it to come into contact with raw water to decompose nutrients in the water that degrade water quality, such as pollution and odors, thereby improving water quality. There are floating, bottom, and land-based charcoal water purification methods. It can enhance transparency and reduce or eliminate BOD, SS, chlorophyll a (algae), and odors in dams, lakes, retention ponds, and garden ponds. For more details, please contact us or download the catalog.

• Renovation and repair methods

Our water purification system forms a microbial film on the surface of the medium, allowing raw water to come into contact with it, breaking down nutrients in the water that degrade water quality, such as pollution and odors, thus improving water quality in an eco-friendly manner. It can enhance transparency and reduce or eliminate BOD, SS, chlorophyll a (algae), and odors in reservoirs, lakes, retention ponds, and garden ponds. For more details, please contact us or download the catalog.

• Soil improvement material