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<a accesskey="3" href="page.php?w=Water_treatment&amp;p=2">3.Next</a>
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<p><b>Water treatment</b> is any process that improves the <a href="page.php?w=Water_quality">quality</a> of <a href="page.php?w=water">water</a> to make it appropriate for a specific end-use. The end use may be <a href="page.php?w=drinking_water">drinking</a>, industrial water supply, <a href="page.php?w=irrigation">irrigation</a>, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.  Water treatment removes <a href="page.php?w=contaminant">contaminant</a>s and undesirable components,</p><p>
<a accesskey="3" href="page.php?w=Water_treatment&amp;p=2">3.Next</a>
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