Case study City of Broomfield WWTP, Colorado, USA
The first installed HYBAS™ process.
Design data
| Parameter |
Value |
| Total BOD5 |
4 411 kg/d |
| TN |
1 394 kg/d |
| TKN |
1 235 kg/d |
| NH4-N |
1 125 kg/d |
| NO3-N |
159 kg/d |
| PO4-P |
227 kg/d |
| TSS |
2 950 kg/d |
| Design flow |
1 262 m³/h |
| PE |
63 000 |
| Design temperature |
13°C |
Effluent requirements
| Parameter |
Value |
| Phosphorous |
<1 mg/l |
| NH4-N |
<2 mg/l |
| NO3-N |
<10 mg/l |
| BOD7 |
<10 mg/l |
Results
| Parameter |
Influent (mg/l) |
Effluent(mg/l) |
Reduction (%) |
| BOD5 |
141.8 |
12.92 |
91 |
| Diss. BOD5 |
62.2 |
2.26 |
96 |
| Total COD |
336.8 |
37.5 |
89 |
| Diss. COD |
113.7 |
27.5 |
76 |
| N-tot |
42.3 |
8.6 |
80 |
| TKN |
34.75 |
3.14 |
91 |
| NH4-N |
28.28 |
1.12 |
96 |
The HYBAS™ process allows for higher capacity and longer SRTs without having to build any new activated sludge treatment volume.
