トーケミ List of Products and Services

Since its establishment in 1965, Tohkemii has introduced products and technologies that you can use with confidence, based on the experience and achievements it has cultivated as a top manufacturer of filtration materials.

This is the filter media (filter material) at the heart of water purification. Filtration sand, anthracite, and manganese sand have evolved from general water treatment to JWWA specifications.

【Features】 ● Used as a lower collection material for slow filtration ponds and sun-drying beds. ● Our products meet JIS standards and are highly excellent in water permeability and durability.

【Water Supply Membrane Module Standard AMST-001 (Seventh Edition) Certified Product (SMF-PVDF)】 【Features】 ● Achieves high flux through special membrane fabrication Clean water permeation flow rate of 16.6 m³/(m²·d), 0.2 MPa, 25 °C ● Excellent cleaning capability achieved through the combined use of water and air Effective turbidity removal through bubbling and backwashing with permeate ● Capable of removing Cryptosporidium and Legionella SMF-PVDF has a nominal pore size of 0.05 μm, allowing for the removal of Cryptosporidium and Giardia, which are major threats to drinking water, as well as Legionella, which poses a significant risk in bathing facilities and cooling towers.

This is a vessel-type SMF membrane capable of compact and large-capacity processing. 【Features】 1. Achieves high flux through special membrane manufacturing. 2. Excellent cleaning ability realized by the combined use of water and air. 3. Capable of removing Cryptosporidium and Legionella. Certified product according to the water supply membrane module standard AMST-001 (7th edition) (SMF-PVDF-V40).

This is a hollow fiber module that can be used not only as a immersion membrane for water purification during high turbidity but also as an MBR (Membrane Bioreactor) that is gaining attention for wastewater treatment. 【Features】 1. Compact installation size and space-saving 2. Capable of handling increased treated water volume 3. Stable treated water quality 4. Water recycling is possible 5. Supports concentration recovery in various scenarios

● To secure water for daily use that cannot be supplemented by stockpiling After a disaster, when there is a water outage, not only drinking water but also water for daily use becomes necessary. A survey on the most troubling issues during evacuation after an earthquake revealed that the lack of water for daily use was frequently mentioned. The Acti-Supply Filter can utilize water from storage tanks, fire water tanks, pools, etc., even during power outages, to provide safe water for daily use. Please prepare before a disaster occurs.

Activfiber has the following features due to its very high void ratio and surface area. 【Features】 ● Reduction of installation space It can achieve filtration speeds approximately five times faster than granular filtration media, allowing for smaller filter tower sizes and a reduction in installation space. ● High turbidity capture capacity With a void ratio of over 90% (compared to around 50% for sand and anthracite) and the use of a large amount of fibers in the tens of micrometers, it has a large surface area, enabling a higher turbidity capture capacity compared to granular filtration media. ● Reduction of cleaning water volume A powerful simultaneous cleaning method using air and water is employed, allowing for significant cleaning effects with a small amount of cleaning water.

"Granular Activated Carbon for Water Supply" is a high-quality product that undergoes thorough inspection and management from raw materials to finished products. We conduct detailed inspections at each manufacturing process and with the raw materials of activated carbon to produce stable products. We offer coal-based (mineral) activated carbon "TA-30C," made from coal, which is suitable for removing relatively large organic compounds, and coconut shell-based (plant) activated carbon "TA-30N," which is suitable for removing smaller organic substances such as 2MIB and trihalomethanes, which are causes of musty odors. 【Features of Coal-based (Mineral) Activated Carbon TA-30C】 ■ Activated carbon made from coal ■ Suitable for removing relatively large organic compounds ■ Also used in biological activated carbon treatment *For more details, please download the PDF or feel free to contact us.