Chemical-free Cooling Tower Circulation
Water Treatment System
Features ・Effect

Reduces operating costs and maintenance frequency dramatically.
Immediate effect of silica and scale recovery can be visually confirmed in only 2 hours of operation after the initial startup of the system.

  • Chemical-free water quality improvement treatment in the cooling tower/cooling tower.
  • Removal of silica and scale from circulating water piping and equipment.
  • Power saving by reducing pump load by preventing pipe blockage.
  • Reduction and improvement of high pressure cuts.
  • No COD generation due to non-chemical water quality improvement.
  • Prevention of red rust and rust prevention of red water.
  • Slime, algae, blue-green algae control, and Legionella biofilm sterilization.
  • Significant reduction of cleaning maintenance by improving pipe blockage.
 電気分解の冷却塔水質改善装置。無薬品で循環水を処理。配管スケール除去。水中のスケール成分除去。株式会社イガデン
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Problems facing circulating water.
In cooling towers, algae and bacteria generation and concentration of circulating water cause scale accumulation in the piping and heat exchanger blockage. The problem is a decrease in heat exchange efficiency due to heat exchanger closure and biofilm growth of Legionella bacteria that nest in the scale generated in the piping.

Conventional water treatment uses chemicals to address these problems. Circulating water is evaporated and condensed by evaporation. The concentrated circulating water causes environmental pollution due to the discharge of chemical components during automatic overblowing. In addition, maintenance and management costs, such as chemical and labor costs, are also high.
As a measure of improvement through proposals
The MICRO WATER SYSTEM®, a chemical-free electrolysis water treatment system, separates and recovers silica scale from circulating water in cooling towers through a patented electrolysis process.

Reduces silica scale adhering to cooling towers and removes scale in pipes. Prevents rust in the piping by circulating electrolysis water, inhibits bacteria such as slime, and performs other complex treatments. Reduces maintenance costs by reducing equipment maintenance for heat exchangers and chillers.

By removing scale in the piping, the load on the circulation pump is reduced. The operating efficiency of the circulation pump is improved, resulting in energy savings of about 20%.　Improved circulation water reduces overblown water and saves water.
Installation example
冷却塔循環水スケール除去。無薬品で冷却塔水処理。株式会社イガデン
  • In Japan
  • Scale removal
  • Chemical-free
  • In Thailand
  • Scale removal
  • Chemical-free
クーリングタワー循環水処理装置。無薬で水処理。株式会社イガデン
  • In Japan
  • Changed from the chemical injection to chemical-free electrolysis water treatment.
  • Algicidal treatment
  • Scale removal
クーリングタワー循環水処理装置。無薬で冷却塔の水処理。株式会社イガデン
  • In Indonesia
  • Changed from the chemical injection to chemical-free electrolysis water treatment.
  • Algicidal treatment
  • Scale removal
無薬でクーリングタワー水質改善。配管スケール除去。株式会社イガデン
  • In Singapore
  • Changed from the chemical injection to chemical-free electrolysis water treatment
  • Algicidal treatment
  • Scale removal
  • No bacteria
クーリングタワーと電解処理装置。無薬で水質改善。配管スケール除去・水中のイオン化したスケール成分を除去。株式会社イガデン
  • In Japan
  • Chemical-free treatment
  • Scale removal
  • Algae growth prevention
冷却塔と電気分解処理装置。無薬で循環水処理。株式会社イガデン
  • In Japan
  • Chemical-free treatment
  • Scale removal
無薬で冷却塔循環水処理。配管スケール除去。株式会社イガデン
  • In Japan
  • Chemical-free treatment
  • Scale removal
  • Algae growth prevention
エンジン冷却水の無薬品処理。製品に薬品成分が残るのを、当社水処理装置で無薬品化。配管スケール除去・水のイオン化したスケール成分除去。株式会社イガデン
  • In Japan
  • Scale removal
クーリングタワー水処理装置。無薬で配管スケール除去。株式会社イガデン
  • In Japan
  • Scale removal
無薬で水処理。水質改善装置。冷却塔水処理装置。株式会社イガデン
  • In Japan
  • Scale removal
無薬品で冷却塔の水質改善。株式会社イガデン
  • In Japan
  • Changed from the chemical injection to chemical-free electrolysis water treatment.
  • Scale removal
無薬品でクーリングタワー水質改善。電気分解処理で水中のイオン化したスケール成分除去。配管スケール除去。水質を健全な状態に保ちます。株式会社イガデン
  • In Japan
  • No chemical
  • Scale removal
クーリングタワー循環水処理装置。無薬品で循環水処理。冷却塔を健全な状態に保ちます。
  • In Japan
  • Scale removal
クーリングタワー水処理装置。電気分解処理をする事で、無薬品で排水中のイオン化したスケール成分除去。既に析出している配管スケールを剥離して回収処理。株式会社イガデン
  • In japan
  • No chemical
  • Scale removal from pipes
  • Algae growth prevention
電解処理でクーリングタワー水を処理。無薬品でスケール除去・スケール回収します。株式会社イガデン
  • In Japan
  • Scale removal
Cooling Tower Circulation Water Treatment System (Before and After Installation)
電気分解取り付け前の、薬注処理の状態。泡が発生しており、壁面には藻が付着。配管にはスライムが発生しています。
Before (Chemical Treatment) 		薬注処理を止めて電気分解処理に変更した写真。壁面の藻が少なくなり、配管に付着していたスライムも減少します。水中のスケール成分を除去しているので、配管スケール付着も防止。株式会社イガデン
1 Month after Installation (Non-chemical)
Comparison of Images


Slimes (bacteria) on pipes and inner walls are prevented.
Algae inside of the cooling tower are prevented.

others

Calcium and silica scales are collected using the cooling tower circulation water treatment system.
Growth of algae and bacteria on outer walls is prevented.
Cooling Tower Circulation Water Electrolytic Sterilization Test
クーリングタワー循環水中の一般生菌殺菌テスト。循環水に発生している生菌を殺菌。無薬品で循環水の水質改善。株式会社イガデン
Chemical Water Treatment  Water Electrolytic Sterilization
Common Bacteria
(CFU/ml)		  2.7×104 1.3×102
Consumables, Maintenance and Inspection
  • 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.
Patent No US6,706,168B2
特許第3635349号
特許第6343760号
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