Abstract
Designing SBR systems for simultaneous biological nitrogen and phosphorus removal is evaluated and defined for wastewaters from small coastal areas subject to seasonal fluctuations in quantity and quality. A design procedure is developed using basic process stoichiometry and significant operating parameters. A stepwise approach was utilized to secure full nitrification, available nitrate limitation for denitrification, a mixed phase with enough anaerobic fraction for P removal. A fundamental relationship between the effective sludge age, the recycle ratio and the cycle time was developed and used for the determination of physical design parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 91-98 |
| Number of pages | 8 |
| Journal | Water Science and Technology |
| Volume | 46 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2002 |
Keywords
- Activated sludge
- Design
- Nutrient removal
- Sensitive areas
- Sequencing batch reactor
- Small treatment plants
