Abstract
Breaking down the time limit constraints for conventional compression-permeation (C-P) cell test, this work has, for the first time, experimentally evaluated the cake characteristics of viable waste-activated sludge subject to polyelectrolyte flocculation and to freeze/thaw treatment under a pressure range of 25-200kPa. There exists a threshold pressure exceeding which the cake structure would significantly deteriorate. Also, the present biological sludge is a 'super-compactible' sludge, whose compactibility is greater than most data ever reported in open literature. The information presented herein has implications to filter design/operation and can be used as a reference data set for examining the existing filtration theories.
| Original language | English |
|---|---|
| Pages (from-to) | 1358-1362 |
| Number of pages | 5 |
| Journal | Water Research |
| Volume | 35 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
Keywords
- Compression-permeability cell
- Porosity
- Specific resistance
- Yield stress