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<a accesskey="3" href="page.php?w=sewage_treatment&amp;p=2">3.Next</a>
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<p><b>Sewage treatment</b> is a type of <a href="page.php?w=wastewater_treatment">wastewater treatment</a> which aims to remove <a href="page.php?w=contaminants">contaminants</a> from <a href="page.php?w=sewage">sewage</a> to produce an <a href="page.php?w=effluent">effluent</a> that is suitable for discharge to the surrounding environment or an intended reuse application, thereby preventing <a href="page.php?w=water_pollution">water pollution</a> from raw sewage discharges. Sewage contains <a href="page.php?w=wastewater">wastewater</a></p><p>
<a accesskey="3" href="page.php?w=sewage_treatment&amp;p=2">3.Next</a>
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