Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2012 | Volume: 12 | Issue: 11 | Page No.: 1142-1147
DOI: 10.3923/jas.2012.1142.1147
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
Batch, Column and Thermodynamic of Pb(II) Adsorption on Xanthated Rubber (Hevea brasiliensis) Leaf Powder
W.K.A.W.M. Khalir, M.A.K.M. Hanafiah , S.Z.M. So`ad , W.S.W. Ngah and Z.A.A. Majid

Abstract:
Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch and column experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage, shaking rate and temperature. The optimum adsorbent dosage was found to be at 0.02 g with more than 80% Pb(II) removal. The amount of Pb(II) adsorbed (mg g-1) increased with increasing shaking rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔH°), free energy change (ΔG°) and entropy change (ΔS°) were computed and Pb(II) adsorption process was found to be exothermic. Fixed-bed column fitted well the Thomas and Yoon-Nelson models with correlation coefficients of R2>0.96.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Kinetics and Thermodynamic Study of Lead Adsorption from Aqueous Solution onto Rubber (Hevea brasiliensis) Leaf Powder
How to cite this article:

W.K.A.W.M. Khalir, M.A.K.M. Hanafiah , S.Z.M. So`ad , W.S.W. Ngah and Z.A.A. Majid , 2012. Batch, Column and Thermodynamic of Pb(II) Adsorption on Xanthated Rubber (Hevea brasiliensis) Leaf Powder. Journal of Applied Sciences, 12: 1142-1147.

DOI: 10.3923/jas.2012.1142.1147

URL: https://scialert.net/abstract/?doi=jas.2012.1142.1147

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

       

       

Curve Bottom