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Paper Information

Journal:   NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)   FALL 2007 , Volume 26 , Number 3; Page(s) 141 To 147.
 
Paper: 

ADSORPTION OF CU(II), ZN(II) AND CR (VI) IONS ON SDDC-MODIFIED ACTIVATED CARBON: MECHANISM AND EFFECTIVE DIFFUSION COEFFICIENTS

 
 
Author(s):  BAGHALHA M.*, BADRI N.
 
* DEPARTMENT OF CHEMICAL AND PETROLEUM ENGINEERING, SHARIF UNIVERSITY OF TECHNOLOGY, TEHRAN, I.R. IRAN
 
Abstract: 

Adsorption of metal ions Cu(II), Zn(II) and Cr(VI) on SDDC (sodium diethyl dithiocarbamate)- modified activated carbon in an adsorption column were kinetically modeled in this article. Two types of activated carbons, regular and modified, were considered. For this purpose, the experimental data of Monser and his co-worker for adsorption of metal ions on those two types of activated carbons were adopted. The kinetic modeling of these systems shows that the intra-particle diffusion of the ions is the controlling mechanism for their adsorption on activated carbon. The effective diffusion coefficients of all three ions in the regular activated carbon were calculated as 2.25 x 10-12 m2/s. The effective diffusion coefficients of those three ions in SDDC-modified activated carbon were found to be 50% higher than those in the regular activated carbon.

 
Keyword(s): IMPREGNATED ACTIVE CARBON, SDDC, ABSORPTION, WASTE WATER
 
References: 
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