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http://nopr.niscpr.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. |
| Page(s): | 266-269 |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Appears in Collections: | JSIR Vol.71(04) [April 2012] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| JSIR 71(4) 266-269.pdf | 60.06 kB | Adobe PDF | View/Open |
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