94 Green Chemical Engineering
given in Table A.2 are examined, it can be seen that they are much smaller for the pseudo-
second-order model as compared with those for the pseudo-rst-order model, leading to
the conclusion that the kinetic data of adsorption of P onto activated palash leaves t to
the pseudo-second-order model better than the pseudo-rst-order model. Similar conclu-
sions were made by various researchers (Suresh et al., 2011e) for removal of Aniline and
4-chlorophenol onto various types of ACs.
2A.4.1.3 Adsorption Diffusion Study
The mathematical treatment of Boyd et al. (1947) and Reichenberg (1953) to distin-
guish between particle diffusion and lm diffusion, and the mass action-controlled
mechanism of exchange have laid the foundations ...