Water treatment for power plant
Boiler require clean and soft water for longer life and better efficiency.However, the source of boiler feed water is generally a river or lake which may contain suspended and dissolved impurities,dissolved gases etc. Therefore, it is very important that water is first purified and softened by chemical treatment and then delivered to the boiler.The water from the source of supply id stored in storage tanks.The suspended impurities are removed through sedimentation, coagulation and filtration. Dissolved gases are removed by aeration and degasification. The water is ‘softened, by removing temporary and permanent hardness through different chemical processes. The pure and soft water thus available is fed to the boiler for steam generation.Picture of a water treatment plant is shown below.
Written by arjun on September 20th, 2008 with
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