Abstract
An on-line settling column for measuring the dynamic variations of settling velocity of activated sludge has been developed. The settling column is automatic and self-cleansing insuring continuous and reliable measurements. The settling column was tested on sludge from a batch reactor where sucrose was added as an impulse to activated sludge. The continuous measurement of settling velocity revealed a highly dynamic response after the sucrose was added. The result were verified with simultaneous measurement of the initial settling rate. A 200 hour experiment showed variations in settling velocity, which was not apparent in the DSVI (Diluted Sludge Volume Index).
| Original language | English |
|---|---|
| Journal | Water Science and Technology |
| Volume | Vol |
| Issue number | 36, 4 |
| Pages (from-to) | 307-312 |
| Number of pages | 6 |
| ISSN | 0273-1223 |
| Publication status | Published - 1997 |
Keywords
- Activated sludge
- Settling velocity
- On-line measurement
- Settling column
- DSVI