The development of biobased polymeric materials for wastewater purification has become a demand due
to the growing need for water free of hazardous metal ions for safe purposes. The organic components of the OLLW
including carbohydrates, phenolics, aromatic acids and others are cost-effective and sustainable choices for this
application. This work focuses on a method for turning the organic components of liquid waste from the olive
industry (OILW) into a foam-based value-added polymer that has several metal ion binding sites. The process
of making the target polymers involved reacting the components of the OILW with hexamethylene diisocyante
and 1,4-phnyelene diisocynate to create the polymeric materials LHMIDIC and LPDIC that are in foam forms with urethane
linkages, respectively. The adsorption competence of the polymeric foams toward Pb(II) was evaluated
as a function of various parameters including adsorbent dose, pH, temperature, initial ion concentration and time. The
optimum parameters values that led to a quantitative removal of Pb(II) were identified. The obtained thermodynamic
parameters showed that the adsorption by the two foams was spontaneous at room temperature. The isothermal
and kinetic values showed that the adsorption by synthesized foams follows a second order kinetic and obeys
the Langmuir isothermal model. The foams showed a high tendency for removing multi metal ions present in a real
sample of wastewater. The original nature of the starting material used in making the foam, cost and the obtained
results showed the potential of using the foam in a large-scale plants of wastewater purification.

Title

BMC Chemistry

Publisher

Springer

Publisher Country

United Kingdom

Indexing

Scopus

Impact Factor

4.6

Publication Type

Prtinted only

Volume

18

Year

2024

Pages

324