Water Hardness and Impurity Treatments

To prevent scale formation on the boiler tubes

To protect against tube failure

Overheating of tube surfaces

<p>To reduce equipment damage</p> Signup and view all the answers

<p>Overheating of the furnace</p> Signup and view all the answers

<p>Stringent standards for water treatment</p> Signup and view all the answers

<p>Bicarbonates of calcium and magnesium which precipitate at temperatures below boiling point</p> Signup and view all the answers

<p>Blowing down the boiler mud drum</p> Signup and view all the answers

<p>Ability to produce boiler corrosion</p> Signup and view all the answers

<p>Causes corrosion in copper and copper bearing alloys</p> Signup and view all the answers

<p>Using deaerators externally and internally</p> Signup and view all the answers

<p>Forms carbonic acid causing grooving on metal surfaces</p> Signup and view all the answers

<p>To protect the facility's boiler investment</p> Signup and view all the answers

<p>Excess water hardness</p> Signup and view all the answers

<p>Foaming leading to carryover or priming from the steam drum</p> Signup and view all the answers

<p>By conducting conductivity tests with a probe</p> Signup and view all the answers

<p>To reduce the levels of suspended solids through gravity settling and pressure filtration</p> Signup and view all the answers

<p>Excess water hardness</p> Signup and view all the answers

<p>Corrosion is significant at a pH below 8.5</p> Signup and view all the answers

<p>Dissolves the magnetite coating</p> Signup and view all the answers

<p>Caustic embrittlement</p> Signup and view all the answers

<p>Sodium hydroxide</p> Signup and view all the answers

<p>Increasing the continuous blowdown rate</p> Signup and view all the answers

<p>Fine intergranular cracking</p> Signup and view all the answers

<p>Magnetite coating</p> Signup and view all the answers