CENTRA-FLO™
Aztec WWTP, NM - Denitrification &
Phosphorus Removal
| Equipment: | Centra-flo™ Gravity Sand Filter with Blue NITE™ Two (2) Model CF-200 |
System Size: |
1.0 MGD average flow, 2.0 MGD peak flow |
Deliverable: |
0.5 mg/L total phosphorus, 3 mg/L total nitrogen |
Installation Date: |
Start-up - November 2009 |
Location: |
City of Aztec, New Mexico |
Introduction
The
Aztec, New Mexico wastewater treatment plant needed denitrification filters that could also meet
a future phosphorus limit of 0.5 mg/L total phosphorus. Blue Water’s Blue NITE™ system was
selected for its ability to run the Blue PRO® phosphorus removal process in the
future. When phosphorus removal is needed, the only change to the system will be iron chemical
addition – no other physical or operational changes will be needed.
System Design
The Aztec installation consists of two CF-200 filters for a
single pass Blue NITE™ system at the lower denitrification hydraulic loading rate. Methanol
is dosed as the carbon source for the denitrification process.