Adsorption of Cu (II) on the Surface of Nonconventional Biomass: A Study on Forced Convective Mass Transfer in Packed Bed Column
Table 3
Various breakthrough equations used in present investigation.
Model
Equation
Symbols representation
Bohart-Admas
Where , , , , , and were concentration of zinc at time , initial concentration of zinc, kinetic constant (L/mgmin), saturation concentration (g/L), bed height of column (cm), flow rate of the fluid (mL/h)
Wolborska model
Where is kinetic coefficient of external mass transfer (L/h), and the rest of all the parameters are the same as shown in Bohart-Admas model
Modified dose response model
Where is the volume (L) of metal ion solution, and and are model constants
Thomas model
Where , , , , , and are metal uptake capacity (mg/g), model constant (L/mgh), metal ion concentration at time (mg/L), influent metal ion concentration (mg/L), mass of the biomass packed in the column (g), and (mL/h) is the flow rate of metal solution through packed bed