Abstract
The three-dimensional pore structures in waste activated sludge floc were identified using the fluorescence in situ hybridization (FISH) I and confocal laser scanning microscope (CLSM) images. The meshes of the three-dimensional porous configuration of a sludge floc were constructed from the CLSM series images. The intrafloc flow field was simulated for the constructed floc model when it was subjected to a uniform flow field, based on which the Darcy's permeability was estimated. The permeability (k DL) of original floc was estimated as 8 × 10 -12 m 2. Flocculated flocs had higher k DL due to their large pore size, while the corresponding values of k DL of the freeze/thawed flocs were lower. The calculated results indicate that a few large pores in the floc determine the permeability. The fractal dimension and compactness, however, are not correlated with the permeability of the flocs. © 2004 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 565-575 |
| Journal | Chemical Engineering Science |
| Volume | 60 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 2005 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Research Keywords
- CLSM
- Floc model
- Pore
- Structure
- Transport process
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