UET Chemical-Free Water Treatment Heating & Cooling Systems

Universal Environmental Technology - Power Technology | Energy ...

Chemical-Free Water Treatment Systems – UET

Universal Environmental Technologies, or UET, a global leader in chemical-free water treatment technologies with over 5,000 installations world-wide and which is now entering the Canadian market.

The Science Behind UET – Restoring Equilibrium

UET discovered how to restore water to its natural balance without adding chemicals, and designed a revolutionary water treatment technology that works in all climates and environments. Water passing through different industrial processes changes its properties and will begin to lose its natural equilibrium. Most water treatment methods introduce chemicals to try to resist or inhibit the natural mineral content of water in order to solve water related problems.

UET’s Breakthrough Technology

UET discovered that by promoting the reaction of only those minerals that are disruptive to the process can restore the natural mineral balance of the water. This is achieved by calculating the dynamic equilibrium curve for each water system and implementing a set of reactors that are based on partial- and controlled electrolysis. This process involves a fully computerized system that can be effectively monitored and controlled internally and externally. Through this unique electrochemical process, the water is returned to its dynamic equilibrium within the reaction chamber, leaving the entire water system free of deposits, corrosion and bio-contamination.

The Chemistry of UET – Controlled Chemical Reactions

In each UET system, the designated water is passed through a series of reactors that are configured to apply partial-electrolysis in order to restore the water’s mineral balance to an optimum equilibrium. By applying electrochemical processes, H+ and OH- ions are produced by partial electrolysis of the water. OH- ions promote scale formation with the excess of ions according to the chemical reactions in the chambers, as follows: Ca+2(l) + 2CO3-2(l) + OH-(l) = CaCO3(s) + CO2(g) + H2O(l)

Disinfecting the System

The addition of H+ ions produces biocides through the process of electro-chlorination, which eliminates bacteria and viruses in the water system. The electrolysis process also promotes oxidation and causes electrocoagulation and flocculation, which remove heavy metals from the water.

Restoring Balance to Water Systems

UET’s revolutionary treatment solutions are based on unique algorithms, proven in major installations around the world. Since 1992, our technology has been tested by international chemical companies that set out to disprove its efficacy, but now recognize its advantages.


  • Cooling Towers
  • Closed Cooling Systems
  • Hot Water Systems
  • Water Disinfection
  • Reverse Osmosis
  • Supply Water Systems
  • Total Water Management



  • Eliminating the cost of additive chemicals
  • Reduced scale formation
  • Reduced system maintenance
  • Reduced corrosion
  • Reduced bio-contamination
  • Reduced suspended solids
  • Improved performance
  • More effective computer control

UET Client Case Studies

  Siemens Solar Power Plant,  Lebrija, Spain   Challenge: Cooling towers in major solar plant using low quality recycled agricultural waste water needed to improve concentration cycles Solution: UET was hired to design and supply a system to resolve multiple water quality problems Outcomes: Over several years heat exchangers were opened and inspected to reveal no scale deposits, corrosion or bio-contaminationWater Saving: Cooling system water consumption reduced 250,000 m³ annuallyFinancial Outcome: $500,000 saved annually by reductions in chemical use, water consumption and servicing costs.  
  Schuberg Philis Data Center, The Netherlands   Challenge: Client data centre cooling towers required large amount of coolant for their operations Solution: UET designed and supplied a major water treatment system to treat the cooling towers Outcomes: Chemical additive use eliminatedWater system remained clean from deposits and even historical deposits were cleaned90% discharge water reduction, 40% make-up water reduction, 60% total water cost reductionConcentration cycles increased from 2 to 10ROI: 18 monthsBlow-down water could be discharged directly to sewer due to water quality improvement and absence of  chemicalsProject team including Schuberg Philis & UET’s partner Aqua Innovation Network was nominated for the 2017   ICT Sustainability Milieu Award. The jury was impressed by ability of UET’s technology to cool the data centers without chemicals and additionally conserved 90% of the discharge water.  
  United States GSA Juliette Gordon Low Federal Building General Services Administration Building, Savannah, Georgia   Challenge: 242,000 ft² US General Services Administration Building chiller plant with two 150-ton cooling towers used traditional chemical water treatment were affected by algae Solution: UET electrochemical process water treatment technology   Outcomes: Algae kept in check resulting in cooling towers that were cleaner and needed less maintenanceResearchers confirmed 32% makeup water reduction, 99.8% blowdown reduction100% chemical use reductionAverage water/sewer cost of $16.76 / k-gal(US)Normalized installation costs payback period was 2.5 years.