Water is an ultimate sustainable resource. The hydrologic cycle works to continuously return water to nature for reuse. The challenge is to find enough usable water without overtaxing nature’s ability to replenish the local water supply.
As a large consumer of fresh water, boiler and cooling systems are obvious targets for water conservation efforts. When properly managed, reducing water usage for these systems can have the added benefit of reducing the total costs of operation. There are multiple strategies to help meet water-saving objectives, including management and control of water chemistry, makeup water pretreatment, use of alternative water sources, and equipment maintenance.
Impact of Cycles of Concentration
A core concept to efficiently operate boiler and cooling tower systems is “cycles of concentration.” The cycles of concentration measure the degree to which the dissolved-solid impurities in the makeup water are concentrated. If too low, water, energy, and treatment chemicals will be wasted. If too high, scale, corrosion, and other issues can reduce energy efficiency and decrease equipment life. Finding the best cycles of concentration for a particular boiler or cooling tower system helps optimize sustainability and costs of operation.
Cooling Tower Water-Saving Strategies
Cooling towers are used to remove heat from building HVAC systems and industrial processes, but require specialized maintenance to achieve maximum benefits.
Boiler Water-Saving Strategies
Steam boilers burn fuel to turn makeup water into steam for space heating, process uses, power generation, and more. The quality of water used for makeup, the degree of system control, and the balance of waters within the system can directly impact water efficiency. Because energy is required to heat boiler water, water savings strategies also reduce energy usage.
Closed System Water Saving Strategies
Closed systems (chilled loops, closed loops, hot loops) are water systems that recirculate in a continuous loop where heat is added to one part of the system and then removed in another part without direct air contact or evaporation. Water loss is typically minimum with little makeup water needed.
Achieving more sustainable water treatment solutions while optimizing the total cost of operation requires a partnership approach with proven water treatment providers. Chem-Aqua has the knowledge and experience to help you evaluate and meet your efficiency and sustainability goals. Contact us to find out which sustainable solutions will help your facility conserve valuable resources.