The essential characteristics of the Langmuir equation can be expressed in terms of a dimensionless separation factor, RL, defined by [19]: R L = 1 1 + K C 0, Open image in new window (4).
For the Langmuir isotherm, a dimensionless separation factor can be expressed by the following equation: Table 2 Langmuir and Freundlich isotherm constants and correlation coefficients for the removal of As III) onto ZnO nanorods at different temperatures Temp.
R L is a dimensionless separation factor (McKay et al. 1982) which is an essential characteristic of Langmuir equation defined by Eq. (7), where Ci (mg/L) is the initial dye concentration.
The favourability of the adsorption process can be assessed by a dimensionless constant, separation factor (RL), which is expressed as R_{text{L}} = frac{1}{{(1 + k_{text{L}} C_{text{o}} )}}, (16 where Co (mg L−1) is the highest initial dye concentration.
The favorability of the adsorption is given by the dimensionless separation factor RL which is given by Eq. 4 R_{text{L}} = 1/(1 + K_{text{L}} C_{text{o}} ), (4 where Co (mg/L) is the initial adsorbate concentration and KL is Langmuir constant.
Langmuir equation can be expressed in a term of dimensionless separation factor (R L ).
The data is plotted as a function of the dimensionless separation (r/Delta x).
One more essential feature of Langmuir's isotherm is determined which is a dimensionless constant separation factor (RL), expressed by the following equation given by Hall et al. (1966) {text{RL}} = {1 mathord{left/ {vphantom {1 {left( {1 + bC_{0} } right)}}} right.
The size and charge of residual droplets is shown to vary with bulk ion concentration (represented by a dimensionless inverse Debye length) and initial separation distance, in difference to experimental results obtained for macrodrops.
One of the essential characteristics of Langmuir equation could be expressed by a dimensionless constant called equilibrium parameter or separation factor, RL which can be calculated by the following equation (Hall et al. 1966): R_{text{L}} = 1/left( {1 + K_{text{L}} C_{text{o}} } right) (8 where Co is the highest initial dye concentration (mg L 1).
