Abstract The sorption of phosphorus by using four different
natural materials (marble dust, sawdust, soil, and rice
husk) was studied by conducting batch tests and kinetic
sorption model. The kinetic sorptionmodel based on a pseudo
equation was applied to predict the rate constant of sorption.
Thorough investigations to understand the mechanism of
phosphorus sorption onto the natural materials using kinetic
sorption models, pseudo first- and second-order kinetic sorption
model showed that the kinetic sorption is consistent with
the second-ordermodel, fromwhich it can be inferred that the
mechanism of sorption is chemisorption. Batch tests and
kinetic sorption model results showed that by using marble
dust as sorbent, among other materials, could remove more
than 93 % of phosphorus from aqueous solution.
Keywords Sorption of phosphorus Natural materials