Bon Aqua Treatment in Cooling Systems
A cooling system transfers heat from one source or medium to another. There are volumes of literature that explain cooling systems available on the internet so there’s no reason to repeat it here. All cooling systems need treatment for scale, corrosion, and biological contamination, the damaging impurities that effect operation and efficiency of the HVAC or process equipment.
Common applications for cooling systems are for HVAC (heating, ventilation, and air conditioning), or comfort cooling in office buildings, hospitals and schools; or for industrial manufacturing equipment and processes.
Complicated treatment programs are devised to regulate many factors, all of which contribute to scale, corrosion, or biological contamination, or all three. Here’s a list of the elements that need regulated and why:
- Total Hardness or Total Alkalinity – measurement of the potential of calcium carbonate scale
- Chlorides – usually are corrosive to metals
- Iron – when combined with phosphates can foul equipment
- Silica – needs a host, usually scale and causes further hard scale deposition
- Sulfates – can be extremely corrosive to metals
- TDS – total dissolved solids contribute to scale, foaming, and/or corrosion
- TSS – total suspended solids must be filtered, can cause scale, biofilms, and/or corrosion
- Organic Matter – supports microorganism growth, leading to fouling, corrosion
There’s a constant theme here: scale and corrosion. The elements found naturally in water affect the water’s pH – a measure of acidity and alkalinity. Neutral pH is 7, a reading lower (0-7) indicates acidity, and a number reading higher (7-14) indicates alkalinity. If water remained at a perfect 7 neutral there wouldn’t be a need for treatment of any kind.
Managing the pH of the water and it's cumulative damage is a balancing act of major proportions – too acidic is corrosive; too alkaline or base is scaling. Which chemical mixture is going to work best, with the least amount of damage, for the longest period of time?
Unfortunately for the customer, this is a very expensive proposition, with ongoing, escalating chemical costs; growing water and sewer costs from the vast amounts of water necessary to keep their equipment running; environmental costs and regulations associated with the toxic discharge water; hazards of handling and storage of these toxic water treatment chemicals. But the worst part of this balancing act is that the chemicals just mask the symptoms…the disease of scale, corrosion, and biological activity still exists.
Bon Aqua treatment cures the disease by offering a cleaner, safer, more effective way to balance the assaults heat exchange equipment faces daily—the photos below clearly illustrate that difference.