Deaerator Design and Operation

  • 12 February 2019
  • Author: Chem-Aqua, Inc
  • Number of views: 167
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Deaerator Design and Operation

A deaerator preheats boiler feedwater and removes dissolved gases, especially oxygen and carbon dioxide. These gases are undesirable because they cause corrosion and increase treatment chemical requirements. 

Deaerators operate based on the reduced solubility of dissolved gases as temperature increases. For example, the solubility of oxygen decreases from about five ppm at 150oF to about two ppm at 190oF. Virtually all the free carbon dioxide gas is removed by increasing the temperature to greater than 170oF.

Chlorine Testing In Cooling Tower Systems

What You Need to Know

  • 18 December 2018
  • Author: Chem-Aqua, Inc
  • Number of views: 417
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Chlorine Testing In Cooling Tower Systems

A wide range of chlorine based biocides can be used to control microbiological growth in cooling tower systems.  They all form oxidizing agents in water that can kill microorganisms. However, there are considerable differences in oxidizing power, stability, volatility, and reactions with various compounds found in water. Routine testing is important to confirm effective chlorine residuals are maintained. Low residuals can result in poor microbiological control. High residuals can cause corrosion and destroy inhibitors.

Filtration Options for Closed Loop Systems

How they Apply to Different Types of Closed Loop Filtration

  • 4 December 2018
  • Author: Chem-Aqua, Inc
  • Number of views: 665
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Filtration Options for Closed Loop Systems

Closed loop systems, typically hot and cold water recirculating systems, are often ignored when it comes to water treatment programs. Not only should closed loops be chemically treated to control corrosion and microbiological growth, they should also include a side-stream filter to remove suspended solids. 

Even though closed loop systems are theoretically “closed,” suspended solids can still be introduced as a result of corrosion, new construction, new additions to older systems, leaks, and poor commissioning practices. Turbidity or discoloration can be one sign of suspended solids.

How To Prepare Your Cooling Towers for Winter

Take Precautions to Avoid Issues

  • 20 November 2018
  • Author: Chem-Aqua, Inc
  • Number of views: 1005
  • 0 Comments
How To Prepare Your Cooling Towers for Winter

With the cooler months upon us, it is important to prepare your cooling towers for freezing temperatures.  Even in extremely icy conditions, cooling towers can be operated successfully if proper precautions and protocols are followed.  A frozen cooling tower is a major issue for business operations as well as from a cost standpoint.  Now is the time to prepare for winter weather.

Combatting Corrosion with Chem-Aqua

Know What You're Looking At

  • 13 November 2018
  • Author: Chem-Aqua, Inc
  • Number of views: 297
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Combatting Corrosion with Chem-Aqua

Corrosion costs money.  In fact, water system corrosion costs an estimated $50+ billion annually in the United States alone.  System life, maintenance costs, production time, deposition, and efficiency are all negatively impacted by corrosion.

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