THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS
Swelam, A., Sherif, S., Ibrahim, A. (2018). THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS. EKB Journal Management System, 29(Issue 2-A), 105-124. doi: 10.21608/absb.2018.33773
A. A. Swelam; S. S. Sherif; A. Ibrahim. "THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS". EKB Journal Management System, 29, Issue 2-A, 2018, 105-124. doi: 10.21608/absb.2018.33773
Swelam, A., Sherif, S., Ibrahim, A. (2018). 'THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS', EKB Journal Management System, 29(Issue 2-A), pp. 105-124. doi: 10.21608/absb.2018.33773
Swelam, A., Sherif, S., Ibrahim, A. THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS. EKB Journal Management System, 2018; 29(Issue 2-A): 105-124. doi: 10.21608/absb.2018.33773

THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS

Al-Azhar Bulletin of Science
Article 9, Volume 29, Issue 2-A, December 2018, Page 105-124  XML PDF (1.73 MB)
Document Type: Original Article
DOI: 10.21608/absb.2018.33773
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Authors
A. A. Swelam* 1; S. S. Sherif2; A. Ibrahim1
1Faculty of Science, chemistry Dept. Al Azhar University, Egypt
2Medicinal and Aromatic Dept. Horti. Res. Institute, A. R. C., Egypt
Abstract
This work demonstrates the potential of Moringa oleifera seeds powder as an adsorbent for the removal of heavy metals from wastewater. The moringa oleifera seeds powder is characterized as an adsorbent for the removal of heavy metals from wastewater using FTIR, XRD, pHpzc, SEM and BET techniques. Several processing parameters such as; contact time, adsorbent dose, initial lead ion concentrations, pH, and temperature are optimized. The equilibrium data for bio-sorption are analyzed by using Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherm models to define the best correlation for lead ions. Among the four isotherm models, both Temkin and Freundlich models best describe the experimental data for Pb(II).The adsorption of the metal ions, Pb (II) is well defined by the pseudo-second order model (R2 > 0.99). The interaction of the cationic species with the MOS powder is predominately via chemisorption rather than physisorption. The thermodynamic parameters such as ΔS, ΔH and ΔG are also determined.
Keywords
Moringa oleifera seeds; pb(II); Adsorption; Removal; Kinetics
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