The initial stages of compact formation from suspensions by filtration

被引:30
作者
Koenders, MA [1 ]
Wakeman, RJ [1 ]
机构
[1] LOUGHBOROUGH UNIV TECHNOL,DEPT CHEM ENGN,LOUGHBOROUGH LE11 3TU,LEICS,ENGLAND
关键词
filtration; separation; modelling; cake formation;
D O I
10.1016/0009-2509(96)00236-9
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The initial stage of compact formation from a suspension in a cylindrical cell is studied analytically using a variable resistance and a diffusion-type term in the constitutive equation. The resistance is dependent on the amount of material that has settled on the septum; it is treated as a phenomenological variable. The diffusion term is proportional to the gradient in the solidosity. Experimental verification of the predictions of the theory show excellent agreement up to second order in the pressure. zeta-polential and density dependence of the resistance of the clogged septum are also determined. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:3897 / 3908
页数:12
相关论文
共 36 条
[1]  
Abramowitz M., 1970, HDB MATH FUNCTIONS
[2]   THE RESOLUTION OF SHOCKS AND THE EFFECTS OF COMPRESSIBLE SEDIMENTS IN TRANSIENT SETTLING [J].
AUZERAIS, FM ;
JACKSON, R ;
RUSSEL, WB .
JOURNAL OF FLUID MECHANICS, 1988, 195 :437-462
[3]   THE TRANSIENT SETTLING OF STABLE AND FLOCCULATED DISPERSIONS [J].
AUZERAIS, FM ;
JACKSON, R ;
RUSSEL, WB ;
MURPHY, WF .
JOURNAL OF FLUID MECHANICS, 1990, 221 :613-639
[4]   A NEW THEORY OF THE INSTABILITY OF A UNIFORM FLUIDIZED-BED [J].
BATCHELOR, GK .
JOURNAL OF FLUID MECHANICS, 1988, 193 :75-110
[5]   General theory of three-dimensional consolidation [J].
Biot, MA .
JOURNAL OF APPLIED PHYSICS, 1941, 12 (02) :155-164
[6]   THE CONSOLIDATION OF CONCENTRATED SUSPENSIONS .1. THE THEORY OF SEDIMENTATION [J].
BUSCALL, R ;
WHITE, LR .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :873-891
[7]  
Carlslaw H., 1959, CONDUCTION HEAT SOLI
[8]  
DIXON DC, 1979, PROGR FILTRATION SEP, V1
[9]   CURRENT THEORY AND THICKENER DESIGN [J].
FITCH, B .
INDUSTRIAL AND ENGINEERING CHEMISTRY, 1966, 58 (10) :18-&
[10]  
FONT R, 1988, AICHE J, V34, P329