Re p ¼ particle
ð
ÞReynolds number ¼
D p u pL ρ L
μ L
Sc ¼ Schmidt number ¼
μ L
ρ L D AL
Sh ¼ Sherwood number ¼
k s D p
D AL
And : Gr ¼ Grashof number ¼
gD
3
p ρ L ρ p À ρ L
À
Á
μ 2
L
where u pL is the linear velocity of the particle relative to the bulk liquid, D p is the
diameter of the particle, ρ L is the density of the liquid, μ L is the viscosity of the liquid,
D AL is the molecular diffusivity in the liquid of component A, k s is the liquid to solid
Fig. 11.4 Fluidized bed
reactor for effluent treatment
in food and pharmaceutical
industries
304
A. S. Gupta et al.
ð
ÞReynolds number ¼
D p u pL ρ L
μ L
Sc ¼ Schmidt number ¼
μ L
ρ L D AL
Sh ¼ Sherwood number ¼
k s D p
D AL
And : Gr ¼ Grashof number ¼
gD
3
p ρ L ρ p À ρ L
À
Á
μ 2
L
where u pL is the linear velocity of the particle relative to the bulk liquid, D p is the
diameter of the particle, ρ L is the density of the liquid, μ L is the viscosity of the liquid,
D AL is the molecular diffusivity in the liquid of component A, k s is the liquid to solid
Fig. 11.4 Fluidized bed
reactor for effluent treatment
in food and pharmaceutical
industries
304
A. S. Gupta et al.