Suidou KIKO Kaisha Ltd.

Suidou KIKO Kaisha Ltd. (水道機工株式会社) is a Japanese water-treatment engineering company founded in 1924. According to its official website, it has been a leading company in Japan's waterworks field for roughly a century, contributing to a sustainable water environment. Its business is organized around three main areas: waterworks (municipal drinking-water supply), sewage and resource circulation (wastewater treatment, water reuse, and recovery of energy and resources from sludge), and industrial water and wastewater (process water production, wastewater purification, and reuse for factories). The company describes itself as a comprehensive water-treatment engineering firm. It serves public water-treatment fields such as waterworks and sewage, sludge recycling, and landfill leachate treatment, and also operates in private-sector and overseas markets. Its product range is broad, covering pretreatment, coagulation and sedimentation, filtration, chemical injection, activated carbon injection, ultraviolet treatment, membrane filtration, clean-water reservoirs, wastewater treatment equipment, measuring instruments, water-treatment chemicals, valves, emergency water-production units, sewage and wastewater treatment equipment, civil engineering materials, and agricultural materials such as sewage-sludge fermented fertilizer. Suidou KIKO states that it has developed numerous Japan-first water-treatment devices, systems, and materials, and that its product count is among the largest of any water-treatment plant manufacturer. Its official contact number is 03-3426-2131, with reception hours of 10:00–17:00 and closures on weekends, holidays, and the year-end/New Year period. The company's headquarters is in Tokyo, and it maintains business locations across Japan. Wikidata lists the company as being in Shiranuka, Japan, which may reflect a registered or operational location; the official site presents Tokyo as its main base.

Suidou KIKO Kaisha Ltd. was founded in 1924. According to its official website, the company has spent roughly 100 years since its founding building experience and proprietary technologies for supplying safe water. It describes itself as having been a leading company in Japan's waterworks field since 1924, contributing to a sustainable water environment. Over its history, the company has developed numerous Japan-first water-treatment devices, systems, and materials, and states that it now holds one of the largest product counts among water-treatment plant manufacturers. Its business has expanded from public waterworks into sewage and resource circulation, industrial water and wastewater, and more recently into private-sector demand and overseas markets. The company presents itself as a comprehensive water-treatment engineering firm active in public water-treatment fields including waterworks and sewage, sludge recycling, and landfill leachate treatment. Specific dated milestones beyond the 1924 founding are not provided in the available evidence. The official website includes a corporate history page (沿革) covering the company's steps since 1924, but the detailed contents of that page are not included in the supplied snippets.

• 1924

  Company founded.

• Developed numerous Japan-first water-treatment devices, systems, and materials.

• Expanded into private-sector demand and overseas markets.

Comprehensive water-treatment engineering company and leading player in Japan's waterworks field, serving public and private sectors in Japan and overseas.

• Pretreatment equipment

  Equipment that reduces the load on downstream coagulation, sedimentation, and filtration processes according to raw water quality.

• Coagulation and sedimentation equipment

  Equipment covering coagulant mixing, floc formation, solid-liquid separation, and sludge collection.

• Filtration equipment

  Equipment that removes turbidity and stabilizes treated water quality, including rapid and slow sand filtration.

• Chemical injection equipment

  Systems that accurately meter and inject chemicals with control and safety functions.

• Activated carbon injection equipment

  Equipment and materials to remove musty odor compounds and trihalomethanes.

• Ultraviolet treatment equipment

  Equipment effective against protozoa such as Cryptosporidium.

• Membrane filtration equipment

  High-precision separation equipment suitable for limited installation space.

• Clean-water reservoirs, wastewater treatment equipment, measuring instruments

  Equipment supporting the latter stages of water purification and maintenance management.

• Water-treatment chemicals

  Environmentally friendly chemicals including heavy-metal treatment agents and natural organic polymer coagulants.

• Valves

  Various valves selected according to application conditions.

• Emergency water-production units

  Units that produce safe water from river, lake, well, seawater, fire cistern, or pool water during disasters.

• Sewage and wastewater treatment equipment

  Products for primary, secondary, and advanced treatment of sewage and various wastewaters.

• Civil engineering materials

  Materials for civil engineering applications, including neutral soil improvement material.

• Agricultural materials

  Sewage-sludge fermented fertilizer with reduced odor.

1. 1水道機工株式会社suiki.co.jp
2. 2会社情報｜水道機工株式会社suiki.co.jp
3. 3製品情報｜水道機工株式会社suiki.co.jp
4. 4Suidou KIKO Kaisha Ltd. (Japan) - Wikidatawikidata.org