NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.16 [2009] >
IJCT Vol.16(5) [September 2009] >


Title: Removal of Pb(II) from aqueous solutions by using dioctyl sodium sulphosuccinate-EDTA modified Amberlite XAD-7HP resin
Authors: Tharanitharan, V
Srinivasan, K
Keywords: Lead(II) removal
Dioctyl sodium sulphosuccinate
EDTA
Amberlite XAD-7HP resin
Adsorption isotherms
Kinetics
Issue Date: Sep-2009
Publisher: CSIR
Abstract: The removal of Pb(II) from aqueous solutions by using modified Amberlite XAD-7HP resin has been studied. The resins have been prepared by complete mixing of Amberlite XAD-7HP resin with anionic surfactant-dioctyl sodium sulphosuccinate (DOSSS) and EDTA-disodium salt (Chelating agent) in an aqueous solution. SEM studies revealed the morphological observations of the unloaded adsorbent and thereby changes in the adsorbed polymeric resins. FTIR studies showed that the impregnation of the extractant on the Amberlite XAD-7HP resin is achieved partly through hydrophobic interaction between the alkyl group of the extractant and aliphatic chain (methyl) of the support and also through polar or electrostatic forces. The equilibrium adsorption level was determined as a function of contact time, pH and adsorbent doses. Adsorption isotherms of Pb(II) on adsorbent were determined and correlated with common isotherm equations such as Langmuir and Freundlich models. The adsorption kinetics of Pb(II) on modified XAD-7HP resin could be best described by the pseudo-second-order model. The lead(II) ions could be successfully recovered  from the modified XAD-7HP resin by treatment with 7% NaCl. The modified XAD-7HP resins thus regenerated could be used again to remove the heavy metal ions. The adsorbent was also tested for the removal of Pb(II) from lead battery wastewater.
Page(s): 417-425
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.16(5) [September 2009]

Files in This Item:

File Description SizeFormat
IJCT 16(5) 417-425.pdf649.53 kBAdobe PDFView/Open
 Current Page Visits: 964 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 556376 since 06-Feb-2009  Last updated on 15-Jul-2014Webmaster: nopr@niscair.res.in