Research

Theoretical development and validation of a Sharp Front model of the dewatering of a slurry by an absorbent substrate


Reference:

Collier, N. C., Wilson, M. A., Carter, M. A., Hoff, W. D., Hall, C., Ball, R. J., El-Turki, A. and Allen, G. C., 2007. Theoretical development and validation of a Sharp Front model of the dewatering of a slurry by an absorbent substrate. Journal of Physics D: Applied Physics, 40, pp. 4049-4054.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below.

Official URL:

http://dx.doi.org/10.1088/0022-3727/40/13/022

Abstract

The absorption of water from a slurry into an absorbent substrate is analysed using Sharp Front theory. The analysis describes the relationship between the sorptivity S of the substrate, the desorptivity R of the slurry and the transfer sorptivity A between slurry and substrate, and leads to the relationship 1/A2 ≤ 1/R2 + 1/S2. Experimental data are presented which validate this equation for the practically important case of the absorption of water from soft mortar mixes by fired clay bricks. A unique feature of the experimental work is the measurement of the desorptivity of the mortars at a pressure equal to the wetting front capillary pressure of the clay brick substrate. Analysis of the experimental data also enables, for the first time, the calculation of the capillary potential at the slurry/substrate interface. The analysis has relevance to many aspects of ceramic and mineral processing, industrial filtration and construction engineering.

Details

Item Type Articles
CreatorsCollier, N. C., Wilson, M. A., Carter, M. A., Hoff, W. D., Hall, C., Ball, R. J., El-Turki, A. and Allen, G. C.
DOI10.1088/0022-3727/40/13/022
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
RefereedYes
StatusPublished
ID Code20687

Export

Actions (login required)

View Item