NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
IJCT Vol.12(5) [September 2005] >


Title: Removal of mercury(II) ions by adsorption onto dates nut and commercial activated carbons: A comparative study
Authors: Kannan, N
Malar, S Jasmin Sugantha
Keywords: Mercury(II)
activated carbon
dates nut carbon
adsorption
kinetic equations
intra-particle diffusion
Issue Date: Sep-2005
Publisher: CSIR
IPC CodeC02F3/00; C01B31/00; C02F101:30
Abstract: Studies on the removal of mercury(II) ions by adsorption onto indigenously prepared dates nut (DC) and commercial activated carbons (CAC) have been carried out with an aim to obtain data for treating effluents from metal processing and chloralkali industries. The effect of various process parameters has been investigated by following the batch adsorption technique at 30±1 ºC. The percentage removal of mercury(II) ions increased with the decrease in initial concentration and increase in contact time and dose of adsorbent. As initial pH of the slurry increased, the percentage removal increased and reached a maximum value. The process parameters were optimised. Adsorption data were modeled  with the Freundlich and Langmuir isotherms, the first order kinetic equations proposed by Lagergren and Bhatacharya and Venkobachar and Weber-Morri’s intra-particle diffusion model and the equations models were found to be applicable. The kinetics of adsorption is observed to be first order with intra-particle diffusion as one of the rate determining steps. Removal of mercury(II) ions by DC and CAC is found to be favourable and hence DC could be employed as an alternative low-cost adsorbent for effluent treatment, especially for the removal of mercury(II) and other metal ions.
Page(s): 522-527
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(5) [September 2005]

Files in This Item:

File Description SizeFormat
IJCT 12(5) 522-527.pdf111.19 kBAdobe PDFView/Open
 Current Page Visits: 555 
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: 511358 since 06-Feb-2009  Last updated on 11-Apr-2014Webmaster: nopr@niscair.res.in