Page 567 - Industrial Wastewater Treatment, Recycling and Reuse

NOTATIONS

SYMBOLS
1
constant in Langmuir equation (mg g )
a L
constant in Redlich-Peterson equation
a R
2 1
constant in Dubunin-Radushkevich equation (mol J )
B D
1
constant in Langmuir equation (L g )
b L
3
C concentration (kmol m )
3
equilibrium concentration in solution phase (kmol m )
C e
cavitation number
C V
2 1
diffusion coefficient (m s )
D HA
d diameter (m)
d grain size of the crystallite (Chapter 8)
d T, d TO tangential nozzle diameter at diode inlet and pipe inlet of vortex diode
diameter of diode chamber (m)
d c
1
E energy of adsorption (kJ mol )
f T frequency of turbulence
HA acid species
3
[HA] concentration of acid (kmol m )
3
[HA] i initial concentration of acid (kmol m )
3
[HA] o outlet concentration of acid (kmol m )
b 3
[HA] o breakthrough concentration of acid (kmol m )
h height of diode chamber (m)
K constant in Freundlich equation
K R constant in Redlich-Peterson equation
1
k reaction rate constant (s )
1
k s a film mass transfer coefficient (s )
N p number of passes
1/n constant in Freundlich equation
2
P pressure (kg cm )
vapor pressure of liquid
P v
1
power (J s ) (Chapter 2)
P s , P i
3 1
Q flow rate (m s )
1
equilibrium concentration in adsorbent phase (mg g )
Q e /q e
1
theoretical saturation capacity in Dubunin-Radushkevich equation (mol g )
q D
R molar gas constant
radius of bead (m)
R b
Rs. rupees (Indian)
radius of curvature (m)
r c
T temperature
t time (s)
t B breakthrough time (s)
t D diffusion time (s)
t E film transfer time (s)
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