Post-Anox Tank (Tnk-551) Module; Function; Inputs; Setpoints - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

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5.9 Post-Anox Tank (TNK-551) Module

The schematic of the Post-Anox Tank (TNK-551) is located on the AERATION HMI screen and
shown below.

5.9.1 Function

Mixed liquor flows by gravity from the second aeration tank (TNK-502) to the post-anoxic tank
(TNK-551) for final denitrification polishing. In the post-anoxic tank, there are minimal dissolved
influent organics to drive the denitrification process. As such, an external carbon source in the
form of Micro C is dosed (by P-6103) to supplement the organics and drive the denitrification
process.

5.9.2 Inputs

None

5.9.3 Setpoints

None
newterra O&M Manual 61
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