Boiler Feedwater Pre-Treatment Equipment
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Questions and Answers

What is the main goal of municipal potable water treatment systems?

  • To treat hardness
  • To remove pathogens (correct)
  • To remove dissolved gases
  • To remove all chemicals and bacteria
  • Where can the local water quality reports be found for most end-user facilities?

  • Online through the local water utility (correct)
  • At the municipal water treatment plant
  • In the annual state water quality report
  • Through private water testing laboratories
  • What is one of the important factors in understanding what conditions have to be treated and how to size the pre-treatment equipment?

  • Local water chemistry (correct)
  • The type of equipment used
  • Municipal regulations
  • Local weather conditions
  • What are some of the aspects that municipal water requires further treatment for?

    <p>Dissolved gases, dissolved solids, and pathogens</p> Signup and view all the answers

    Where can one obtain the water report if it is not available online?

    <p>Contacting the local utility</p> Signup and view all the answers

    What are the three main steps commonly used in municipal potable water systems to purify their water?

    <p>Remove pathogens, disinfect, and remove solids</p> Signup and view all the answers

    What is the primary purpose of adding free chlorine to the water in the municipal treatment process?

    <p>To disinfect the water</p> Signup and view all the answers

    Why is it important to remove residual chlorine from municipal water before using it in a boiler?

    <p>To prevent corrosion in the boiler</p> Signup and view all the answers

    What could be a potential consequence of making municipal water too basic (high pH) for boiler use?

    <p>Foaming and embrittlement can occur</p> Signup and view all the answers

    What is the purpose of the clarification step in the municipal water treatment process?

    <p>To remove solids and organic materials</p> Signup and view all the answers

    Why is it essential to pre-treat makeup water from non-municipal sources before it goes to the boiler house?

    <p>To prevent corrosion in the boiler</p> Signup and view all the answers

    What is the function of activated charcoal filters and degasifier towers in a boiler system?

    <p>To remove residual chlorine</p> Signup and view all the answers

    What is the possible process solution for acidity (low pH) in boiler water?

    <p>Neutralization</p> Signup and view all the answers

    Which process solution is recommended for addressing alkalinity-related issues in boiler water?

    <p>Lime and Lime-Soda or Zeolite Softening</p> Signup and view all the answers

    What is the possible process solution for dealing with dissolved oxygen and carbon dioxide in boiler water?

    <p>Chemicals</p> Signup and view all the answers

    Which process solution is suitable for mitigating the formation of hydrocarbons in boiler water?

    <p>Carbon Filtration</p> Signup and view all the answers

    What process solution is recommended for addressing hardness (Ca and Mg ions) in boiler water?

    <p>Softening (Ion-exchange, Precipitation)</p> Signup and view all the answers

    What is the possible process solution for dealing with iron (Fe) and copper (Cu) deposits in boiler water?

    <p>Filtration</p> Signup and view all the answers

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