Equilibrium, Kinetic Data, and Adsorptıon Mechanism for Lead Adsorptıon onto Polyacrylamıde Hydrogel

Authors : İmane LEBKİRİ, Brahim ABBOU, Lamya KADIRI, Abdelkarim OUASS, Abdelhay ELAMRİ, Hanae OUADDARI, Omar ELKHATTABİ, Ahmed LEBKİRİ, El Houssine RİFİ

Pages : 731-748

Doi:10.18596/jotcsa.912479

View : 18 | Download : 11

Publication Date : 2021-08-31

Article Type : Research Paper

Abstract :The present study focuses on the effect of experimental parameters insert ignore into journalissuearticles values(pH, temperature, gel mass, metal concentration, contact time); on the performance of lead adsorption by polyacrylamide hydrogels. The results obtained showed that the retention of Pb2+ ions is closely linked to these parameters. The adsorbent gels equilibrate with the metal solution after 180 minutes, and the maximum adsorption capacity is 442.31 mg/g. In addition, the adsorption obeys the pseudo-second-order kinetics and Langmuir isotherm. Desorption of the micropollutant retained by the hydrogel was also studied using 0.1 M of HCl solution. The desorption was rapid, and the efficiency exceeded 90% after a contact time of 90 minutes.
Keywords : adsorption, lead, water treatement, hydrogel, polyacrylamide