Adsorption of COD in Coking Wastewater on Nitric Acid-Modified Blue Coke Activated Carbon

Figure 7

Fitting curves of adsorption kinetic equations: (a) pseudo-second-order kinetic model; (b) Elovich model; (c) Bangham model; (d) intraparticle diffusion model.

(a)

(b)

(c)

(d)