This study focuses on a new approach for removal of phenol
from an aqueous solution. In this approach cross-linked polyitaconic acid
(x-PIA) was used as phenol adsorpent. Cross-linked polyitaconic acid was
prepared from itaonic acid and the cross-linking agent 1,4-butane diglcidyl
ether using chain growth polymerization technique
The adsorption property of x-PIA was investigated in terms of adsorbent dosage,
pH, temperature, contact time, and contaminant concentration. The adsorption
capacity of x-PIT was studied using Freundlich and Langmuir models at equilibrium
to determine mechanism of adsorption process whether it is a chemical or
physical. It appears that analysis of the adsorption mechanism suggested that
hydrogen bonding was the primary driving force for phenol adsorbed on the
polymeric adsorbents in cyclohexane, and multiple hydrogen bonding was involved
for PMVBU with phenol. The results also showed that the adsorption properties
of x-PIA model followed Langmuir model with B value of 0.031 which support our
results in that the adsorption is favorable. The pseudo-second-order model was
the best for describing the kinetic adsorption of phenol with correlation
coefficient valued (R2) is being 0.9975 and, K2 and qe of 0.0118, 11.933
respectively. This validated that the adsorption process was a chemical
adsorption.
Keywords: Polyitaconic acid, phenol, adsorption, wastewater, isotherm, olive
waste.