From data above, let us consider the minimum contact time
required for the removal of 99% MB dye from 10 m3 of 100 mg L−1
of the dye in five stages of a batch adsorption process.
Kinetic equations can be used to predict the design of N-stage
batch sorption systems. The basis of this model is now discussed.
A schematic diagram for an N-stage adsorption system is shown in
Fig. 11.