Chemical Free Cooling and Heating Water Treatment Systems
Wasser Resources Inc. now represents 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.
SYSTEM OPTIONS
- Cooling Towers
- Closed Cooling Systems
- Hot Water Systems
- Water Disinfection
- Reverse Osmosis
- Supply Water Systems
- Total Water Management
SYSTEM BENEFITS
- 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
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 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.
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-contamination
- Water Saving: Cooling system water consumption reduced 250,000 m³ annually
- Financial 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 eliminated
- Water system remained clean from deposits and even historical deposits were cleaned
- 90% discharge water reduction, 40% make-up water reduction, 60% total water cost reduction
- Concentration cycles increased from 2 to 10
- ROI: 18 months
- Blow-down water could be discharged directly to sewer due to water quality improvement and absence of chemicals
- Project 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 maintenance
- Researchers confirmed 32% makeup water reduction, 99.8% blowdown reduction
- 100% chemical use reduction
- Average water/sewer cost of $16.76 / k-gal(US)
- Normalized installation costs payback period was 2.5 years.
UET has discovered how to restore water to its natural balance without adding chemicals, and designed a revolutionary water treatment technology that works in all environments.
Restoring Equilibrium
Any water passing through different processes changes its properties and will begin losing its natural equilibrium. Most water treatment methods try to resist or inhibit the minerals in order to solve water-related problems.
UET discovered that promoting 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 it using an electrolysis system, designed according to unique algorithms, to balance the excess minerals in the correct proportions. Through UET’s unique electrochemical process, the water is returned to its equilibrium within the reaction chamber, leaving the entire water system free of deposits, corrosion and bio-contamination.
Chemical Reactions
In each UET system, the supply water is passed through a series of reaction chambers which are configured to apply electrolysis in order to restore the supply water’s mineral balance to an optimum equilibrium. By applying DC voltage to electrodes in the chambers H+ and OH- ions are produced by partial electrolysis of the water. The addition of OH- ions promotes scale formation with the excess of ions Ca+2 and CO3-2 (Ca+2 + 2CO3-2 + OH- = CaCO3 + CO2 + H2O) in the chambers.
Cleaning 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.
Discover more about UET at www.uet.co.il and contact Leon Wasser, MBA, P.Eng. to discuss your cooling tower water quality improvement needs leon@kedma.ca (416) 473-4614.