Case study Phillips Petroleum, Texas, LOS E.E.U.U.
Wastewater treatment plant for removal of organic pollutants and ammonia.
- Operational since: 1999.
Design data
| Parameter | Value |
|---|---|
| BOD (average) | 3 012 kg/d |
| BOD (max) | 5 443 kg/d |
| COD (average) | 6 806 kg/d |
| COD (max) | 10 362 kg/d |
| TSS | 787 kg/d |
| NH4-N | 212 kg/d |
| Design flow | 19 684 m³/h |
| Maximum flow | 28 390 m³/h |
Temperature range |
25-40°C |
Effluent requirements
The installed Moving Bed™ biofilm system is designed to reduce the organic load to the activated sludge treatment to make the plant comply with new discharge permit with restrictions on ammonia.
Results
| COD (mg/l) | NH4-N (mg/l) | Temp. (°C) | Turb. (NTU) | ||||
|---|---|---|---|---|---|---|---|
| Inf. | Eff. MBBR step | Eff. | Inf. | Eff. | Eff. | Eff. | |
| Jan. | 413,4 | 80,7 | 9,92 | 3,89 | 26,5 | 20,5 | |
| Feb. | 397,3 | 88,4 | 1,67 | 3,49 | 28,0 | 27,4 | |
| Mars | 412,3 | 68,5 | 10,51 | 2,89 | 30,4 | 19,6 | |
| April | 386,2 | 157,1 | 57,8 | 12,42 | 1,15 | 31,8 | 11,2 |
| Maj | 386,4 | 133,5 | 49,9 | 8,09 | 0,59 | 31,7 | 9,9 |
| Juni | 238,3 | 99,5 | 46,0 | 13,29 | 0,74 | 35,0 | 7,8 |
| Juli | 257,1 | 123,3 | 64,1 | 11,50 | 0,46 | 38,0 | 13,2 |
| Aug. | 293,8 | 124,4 | 53,0 | 8,78 | 0,51 | 37,6 | 8,78 |
| Sept. | 289,2 | 114,3 | 47,8 | 7,94 | 0,51 | 35,3 | 9,43 |
| Okt. | 373,4 | 172,9 | 59,2 | 11,36 | 1,85 | 32,1 | 10,0 |
| Nov. | 324,2 | 141,8 | 52,2 | 10,56 | 0,99 | 34,0 | 9,6 |
| Dec. | 368,5 | 171,9 | 64,9 | 15,08 | 1,15 | 31,5 | 9,8 |
By retrofitting existing primary clarifier with a Moving Bed™ biofilm process the plant has achieved>80% removal of soluble BOD.