Intraparticle Diffusion in Lead Adsorption Onto Paper and Pineapple Wastes as Adsorbents

 

Panida Sampranpiboon1*, Pisit Charnkeitkong2 and Xianshe Feng3

1 Department of Chemical and Material Engineering, College of Engineering,

Rangsit University, Pathumthani, 12000, Thailand

2 Faculty of Engineering and Technology, Panyapiwat Institute of Management,

Nonthaburi, 11120, Thailand

3Department of Chemical Engineering, University of Waterloo,

Ontario, Canada N2L3G1

*E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Manuscript received October 2, 2012

Revised November 9, 2012

 


ABSTRACT

The paper wastes from paper processing and pineapple wastes from pineapple juice processing were used as adsorbents for removal of lead by adsorption. The adsorption rates for the two systems were determined, and the adsorption mechanism was shown to be predominantly intraparticle diffusion. For a given adsorbent, an increase in the initial feed lead concentration resulted in an increase in the adsorption rate. The results showed that increasing the lead ion concentration in aqueous solution would increase the diffusion of metal ions in the boundary layer and to enhance the diffusion in the solid. The potential use of paper and pineapple wastes as a cost-effective adsorbent for lead removal in wastewater treatment was demonstrated.

 

 

Keywords: Lead adsorption, Paper waste, Pineapple waste, Intraparticle diffusion

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