Case study Leprino Foods Company- New Mexico, USA
Treatment plant for wastewater from mozzarella production.
- Operational since: 2001.
Design data
| Parameter | Value |
|---|---|
| Total BOD5 | 10 590 kg/d |
| Total COD | 15 575 kg/d |
| TN | 515 kg/d |
| TKN | 333 kg/d |
| NH4-N | 45 kg/d |
| NO3-N | 181 kg/d |
| PO4-P | 272 kg/d |
| TSS | 3 026 kg/d |
| Design flow | 126 m³/h |
| Design temperature range | 25-40°C |
Effluent requirements
The Moving Bed™ biofilm process is designed to remove 40% of easily degradable organic matter before the effluent is discharged to activated sludge basins.
Results
| Influent (mg/l) | Effluent (mg/l) | |
|---|---|---|
| Diss. COD | 2 290 | 1 004 |
| TSS | 1 026 | 1 758 |
| NH4-N | 12.5 | 9.17 |
| NO3-N | 58.1 | 43.9 |
| TDS | 4 167 | 3 582 |
| TP | 89.4 | 113 |
| Chloride | 383 | 328 |
Upgrading the treatment plant with a Moving Bed™ biofilm process resulted in improved overall production. The average removal for the biofilm system was 56% of soluble COD. In order to meet future capacities the MBBR™ biofilm system can be upgraded by adding more biomedia to the reactor.