Chemical-free Cooling Tower Circulation
Water Treatment System

As environmental pollution escalates, water purification technologies that emphasize global environment conservation while seeking coexistence with a natural environment and a recycling-based society are desired. We offer a chemical-free environmental contaminant elimination system (patented) that uses an electro-physicochemical reaction. It contributes to conservation planning for water, space, and electric power, as well as for reduction of CO2.

Our system has been adopted in the “Kasumigaura water purification project” (a project for developing technologies to purify eutrophicated lakes by the Ministry of Education, Culture, Sports, Science, and Technology), “Development of purification system for hard-to-process wastewater such as wastewater from dairy parlors” (by the Ministry of Economy, Trade, and Industry), and the “Purification project for dam lakes” (by the Ministry of Land, Infrastructure, Transport, and Tourism), receiving recognition for its efficient.

As the temperature in the cooling tower rises to a degree optimal for bacteria growth, scale within the piping accumulates due to algae, bacteria, and concentrated circulation water, causing blockage in the heat exchanger. This in turn leads to issues such as decrease in efficiency in heat exchange and growth of legionella nesting in the scale inside the piping. (Mold fungi appear if regular cleaning is not well maintained.)

Chemical products have traditionally been used to deal with these issues. However, as the circulation water is evaporated and concentrated by the heat of evaporation, chemical component discharge (COD) during automatic overblow (blowdown) has been a recent concern. Thus, the maintenance cost is high.


The chemical-free water treatment system, “MICRO WATER SYSTEM” (patented) reduces maintenance, and operates while conserving energy at low costs. It can also separate and collect the scale in the circulation water, control saprophytic contamination, kill algae, and conserve water. Especially, this system has consistently been delivered to many ISO 14001 certified companies, gathering attention.


Alternative water treatment for chemicals Chemical-free cooling tower circulation water treatment system

Chemical-free Cooling Tower Circulation Water Treatment System

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• Scale removal
• Chemical-free

• Cooling Tower Circulation Water Treatment System
• Total circulating water: 15 tons
• 2 units
• In Japan
• Changed from the chemical injection to chemical-free electrolysis water treatment
• Algicidal treatment
• Scale removal

• Cooling Tower Circulation Water Treatment System
• Total circulating water: 18 tons
• 3 units
• Home appliance manufacturer in Indonesia
• Changed from the chemical injection to chemical-free electrolysis water treatment (Cost-savings)
• Algicidal treatment
• Scale removal

• Component Data of Removed Scale

• Cooling Tower Circulation Water Treatment System
• Total circulating water: 22 tons
• 1 unit
• Home appliance manufacturer in Singapore
• Changed from the chemical injection to chemical-free electrolysis water treatment
• Algicidal treatment
• Scale removal
• No bacteria

• Component Data of Removed Scale

• Cooling Tower Circulation Water Treatment System
• Total circulating water: 15 tons x 2 units
• 2 units
• In Japan
• New installation
• Chemical-free treatment
• Scale removal in makeup water
• Algae growth prevention

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• Chemical-free treatment
• Scale removal
• Algae growth prevention

• Cooling Tower Circulation Water Treatment System
• 2 units
• In Japan
• Scale removal

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• Scale removal

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• Scale removal

• Cooling Tower Circulation Water Treatment System
• 1 unit
• Total circulating water: 11 tons
• In Japan
• Changed from the chemical injection to chemical-free electrolysis water treatment
• Scale removal
• Algae growth prevention

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• No chemical
• Scale removal

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In Japan
• Scale removal

• Cooling Tower Circulation Water Treatment System
• 1 unit
• In japan
• No chemical
• Scale removal from pipes
• Algae growth prevention

• Cooling Tower Circulation Water Treatment System
• 2 units
• In Japan
• Scale removal

• Maintenance and Inspection: The system operates automatically, but regular inspection is required.
• Consumables: The electrode plates need to be replaced every six months or one year.
• Applicable to the electrical conductivity of 400-1200 μS/Cm. The automatic blow is set to the highest possible value.