Water Treatment in
Advantages of water Softening are:
- Water Softening will deal with the problems caused by hard water such as excessive soap use and scaling.
- Depending on the type of water softening process used, softening may also aid in other water treatment processes.
- water Softening often removes iron and manganese, reduces tastes and odors, reduces total solids content, and removes radioactivity.
- The high pH associated with lime softening can aid in disinfection.
- When water is stabilized using recarbonation at the end of the lime water softening process, corrosion in the distribution system is avoided.
Disadvantages of Softening are:
- Water Softening processes are expensive.
- The high pH associated with lime softening tends to form hypo chlorate as the dominant free chlorine residual, which is less powerful disinfectant than other free chlorine residuals.
- The high pH may also increase tri halomethane levels in the water.
- If the water is not properly stabilized after treatment, then corrosive water may be produced which will corrode the distribution system.
- Ion exchange water softening, can also cause problems due to the high levels of sodium in the treated water.
- Both lime softening and ion exchange softening create waste disposal problems.
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