Skip to content
Research Article Open access CC BY 4.0

Optimized Adsorption of Pb(II) ION from Aqueous Solution Using Sharp Sand: Ann and RSM Modelling

C. I. Egwuatu, P. C. Okafor, J. O. Ndubuisi, P. C. Ezeagwu

Asian Journal of Applied Chemistry Research · pp. 1–15 · Published 4 Aug 2023

10.9734/ajacr/2023/v14i2259

Abstract

Aim: This study was aimed at using sharp sand as an adsorbent to optimize the removal of Pb ionsfrom simulated water and water obtained from Enyigba River. Study Design: Adsorption experiment was designed using Response Surface Methodology (RSM). Artificial Neural Network (ANN) was also used to predict % Pb(II)removal. Place and Duration of Study: Department Of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, June 2012 to June 2023. Methodology: Sharp sand was modified with salicylic acid, noted as SSM and then characterized. Experiments were carried out by varying four adsorption factors: concentration, time, pH and temperature. Adsorption experiments were also done for equilibrium isotherm, kinetics and thermodynamic studies. Results: The modified sharp sand showed a high percentage of silicon. RSM and ANN predicted the sorption of Pb(II) well with R2 values > 0.9. The optimal values for concentration, time, pH and temperature are 0.0125mg/l, 100sec, 2, 20oC respectively. Langmuir isotherm gave the better fit and adsorption was endothermic with positive ∆H. Adsorption followed second-order kinetics. FTIR analysis showed the presence of functional groups that were responsible for adsorption. Enyigba River water is slightly polluted with lead ions with concentrations higher than WHO standard. Conclusion: The adsorbent was able to remove over 70% of the metal ions from both the simulated and Enyigba River water.

Adsorption neural network kinetics optimization

References (17)

  1. 1 THE CONSTITUTION AND FUNDAMENTAL PROPERTIES OF SOLIDS AND LIQUIDS. PART I. SOLIDS. [DOI]
  2. 2 Über die Adsorption in Lösungen [DOI]
  3. 3 Intraparticle diffusion processes during acid dye adsorption onto chitosan [DOI]
  4. 4 Adsorptive removal of phenol by bagasse fly ash and activated carbon: Equilibrium, kinetics and thermodynamics [DOI]
  5. 5 Removal of heavy metals from aqueous solution by biochars derived from anaerobically digested biomass [DOI]
  6. 6 Study of the Sorption of Divalent Metal Ions on to Peat [DOI]
  7. 7 Methods of Removing Heavy Metals from Industrial Wastewater
  8. 8 Saw dust and neem bark as low-cost natural biosorbent for adsorptive removal of Zn(II) and Cd(II) ions from aqueous solutions [DOI]
  9. 9 Optimization of preparation conditions for mangosteen peel-based activated carbons for the removal of Remazol Brilliant Blue R using response surface methodology [DOI]
  10. 10 Acid-modified montmorillonite for sorption of heavy metals from automobile effluent [DOI]
  11. 11 Process optimization of K2C2O4-activated carbon from Prosopis africana seed hulls using response surface methodology [DOI]
  12. 12 Treatment of an automobile effluent from heavy metals contamination by an eco-friendly montmorillonite [DOI]
  13. 13 Parametric Studies on Descriptive Isotherms for the Uptake of Crystal Violet Dye from Aqueous Solution onto Lignin-Rich Adsorbent [DOI]
  14. 14 Removal of ammonium‐nitrogen from aqueous solution using chitosan‐coated bentonite: Mechanism and effect of operating parameters [DOI]
  15. 15 ADSORPTION OF Cu, As, Pb AND Zn BY BANANA TRUNK [DOI]
  16. 16 Biosorption of radiostrontium by alginate beads: application of isotherm models and thermodynamic studies [DOI]
  17. 17 Removing Heavy Metals Through Different Types of Soils and Marble Powder Found in Oman [DOI]

Cited by 3

استخدام مخلفات نبات اللسلس الجاف كمادة مازة جديدة لصبغة الميثيلين الأزرق: دراسة تجريبية ونمذجة

سليمة عبدالله عبجه, علي محمد الهليب, خالد عبدالمجيد سويب · Journal of Basic Sciences · 2024

Showing 1 of 3 known citations — external sources report more than can currently be individually listed.

Related research

Article metrics

Real usage data collected on this platform.

12

Page views

0

PDF downloads

1

Outbound clicks

3

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.