How to Resolve 4 Major Maintenance Problems of Cooling Towers?

The cooling system’s reliability, equipment, and operating costs, and operational efficiency are affected by the quality and the cooling tower water treatment. Here are four of the basic issues that every cooling maintenance could undergo and their solutions: 

Corrosion 

One of the main cooling tower problems that should be addressed properly is corrosion. Sadly, this problem is usually ignored and overlooked because many believe that this reaction is only normal particularly for those aged cooling towers. However, if corrosion is left untreated, it could worsen and fester. If this occurs, repairs won’t be sufficient. You might be needed to change parts or maybe replace the whole cooling tower itself. Know that replacing the damaged parts or replacing the whole cooling tower isn’t just very expensive, it could possibly put other areas at risk within the cooling system. This could affect your operation, which leads to more losses. 

Solution: 

Thankfully, there are ways you can do to prevent your cooling tower to be corroded. With regular inspections, you can determine minimal problems that could cause corrosion. Extremely small problems such as small water leakage and scale build-up from a closed-loop system shouldn’t be neglected since they could activate further damages and corrosion. 

Scaling 

Scaling could build up over time and this could damage the pipes, internal surfaces, and the cooling system itself. Also, scaling could minimize cooling tower efficiency and minimizes heat dispersal as it increases the consumption of energy. 

Solution: 

The most efficient solutions for cooling system scaling include: 

  • pH control 
  • Chemical scale inhibitors 
  • Feedwater treatment 
  • Circulation side-stream filtration 
  • Blowdown monitoring and concentration cycles. 

Fouling 

This issue is basically known as the development of deposits or unwanted materials on a solid surface. In cooling towers, the causes of fouling aren’t just restricted to debris, dust, and dirt. It could also be due to other materials—both non-living and living ones—such as sand, migratory corrosion products, biological contaminants, microbiological development, suspended and colloidal solids, and silt. Fouling is just like scaling, however, its deposits are less hard compared to scaling. 

Solution: 

  • Side-stream filtration 
  • Periodic blowdown 
  • Chemical dispersants 
  • Close and regular monitoring 

Microbiological contamination 

Biological/microbiological contamination is the unintentional or accidental introduction of microbes such as yeast, mold, toxins and protozoa by-products, bacteria, algae, and fungi within the cooling system. Microorganisms could reach the cooling system in 2 ways. It could either be through the inflow of water or the air that passes through the tower. Process leaks, water use, and water evaporation could all boost the water’s nutrient content that’s utilized on an evaporative cooling tower. With warm water and a lot of nutrient supply, the cooling system gets a perfect environment and a breeding ground for pathogenic microorganisms as they survive and develop.  

Solution 

Controlling the development of microbes within the system, particularly fungi, algae, and bacteria is the greatest means of solving the problem. 

If you want to know more about the solutions to such cooling tower issues, visit International Cooling Tower now!