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Why Sewer Science in Fairfax County? - Virginia Water Environment ...

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Primary Effluent<br />

Day 1<br />

page 17<br />

Transfer wastewater from<br />

Sedimentation Tank to<br />

Aeration Tank and add<br />

microorganisms<br />

Secondary (Biological)<br />

Treatment page 18<br />

Someth<strong>in</strong>g eats this stuff?!<br />

(24 - 48 hrs eat<strong>in</strong>g time)<br />

Nitrification occurs<br />

17

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