Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/13756
Title: Regeneration of chitosan after heavy metal sorption
Authors: Bhuvaneshwari, S
Sruthi, D
Sivasubramanian, V
Kanthimathy, K
Keywords: Chitosan
Cr(VI)
Desorption
Regenerated Adsorbent
Issue Date: Apr-2012
Publisher: NISCAIR-CSIR, India
Abstract: This study presents desorption of Cr(VI) ions from chitosan by various eluants (dilute mineral acids and organic acids). A maximum of 88% of Cr (VI) was desorbed from metal loaded chitosan with 0.1 M H2SO4 without any physical damage to adsorbent. Numerical optimization has been carried out by a central composite design (CCD) in response surface methodology (RSM). Chitosan was regenerated by successive washing with deionised water many times until a neutral pH was obtained. Regenerated adsorbent/chitosan was dried and used to initiate another cycle of sorption and desorption. Absence of noticeable change in adsorption capacities of reused adsorbent confirms reusable potential of chitosan.
Description: 266-269
URI: http://hdl.handle.net/123456789/13756
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.71(04) [April 2012]

Files in This Item:
File Description SizeFormat 
JSIR 71(4) 266-269.pdf60.06 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.