Reynolds number-dependent permeability of wastewater sludge flocs

Zeng Yang; Xiao-Feng Peng; Duu-Jong Lee; Ay Su

doi:10.1016/j.jcice.2006.07.003

Author(s)

Zeng Yang
Xiao-Feng Peng
Duu-Jong Lee
Ay Su

Detail(s)

Original language	English
Pages (from-to)	135-141
Journal / Publication	Journal of the Chinese Institute of Chemical Engineers
Volume	38
Issue number	2
Publication status	Published - Mar 2007
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.jcice.2006.07.003 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-38549142705&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(46f6c701-ec7c-4669-931e-8c53a1200bd5).html

Abstract

Most theoretical models assume constant permeability of wastewater sludge floc. This work shows that, at creeping flow limit with small intrafloc Reynolds number, the permeability of floc can not only be affected by floc structure, but also by the external flow condition. The three-dimensional structure of flocs using the fluorescence in situ hybridization (FISH) and the confocal laser scanning microscope (CLSM) was firstly probed. Then, the volumetric grid models for sludge flocs were constructed. We noted that the floc permeability could keep unchanged, increased, or decreased at increasad Reynolds number (Re). Flow redistribution among channels of various sizes contributes to the noted Re-dependent permeability of flocs. © 2007 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Research Area(s)

CLSM, Floc model, Flow distribution, Permeability

Bibliographic 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].

Citation Format(s)

[ RIS ] [ BibTeX ]

Reynolds number-dependent permeability of wastewater sludge flocs. / Yang, Zeng; Peng, Xiao-Feng; Lee, Duu-Jong et al.
In: Journal of the Chinese Institute of Chemical Engineers, Vol. 38, No. 2, 03.2007, p. 135-141.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Yang, Z, Peng, X-F, Lee, D-J & Su, A 2007, 'Reynolds number-dependent permeability of wastewater sludge flocs', Journal of the Chinese Institute of Chemical Engineers, vol. 38, no. 2, pp. 135-141. https://doi.org/10.1016/j.jcice.2006.07.003

Yang, Z., Peng, X.-F., Lee, D.-J., & Su, A. (2007). Reynolds number-dependent permeability of wastewater sludge flocs. Journal of the Chinese Institute of Chemical Engineers, 38(2), 135-141. https://doi.org/10.1016/j.jcice.2006.07.003

Yang Z, Peng XF, Lee DJ, Su A. Reynolds number-dependent permeability of wastewater sludge flocs. Journal of the Chinese Institute of Chemical Engineers. 2007 Mar;38(2):135-141. doi: 10.1016/j.jcice.2006.07.003

Yang, Zeng ; Peng, Xiao-Feng ; Lee, Duu-Jong et al. / Reynolds number-dependent permeability of wastewater sludge flocs. In: Journal of the Chinese Institute of Chemical Engineers. 2007 ; Vol. 38, No. 2. pp. 135-141.