NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.63 [2004] >
JSIR Vol.63(11) [November 2004] >


Title: Application of carbon aerogel for electrolytic removal of mercury from aqueous solutions
Authors: Madaria, Parul Rana
Mohan, N
Rajagopal, C
Garg, B S
Keywords: Electrochemical
Carbon aerogel
Mercury
Response surface methodology
Issue Date: Nov-2004
Publisher: CSIR
IPC Code Int .Cl.7: C 25 B 1/04
Abstract: A study has been carried out to determine the feasibility of electrochemical removal of mercury ions from aqueous solution using carbon aerogel electrodes. In this work the influence of three parameters viz., initial concentration (2-8 mg/L), pH (2-9), and charge (0.3-1.3 Ah) on the percentage removal of mercury are examined using response surface methodological approach. The metal ion removal significantly increases at slightly acidic and high charge conditions. This technique can achieve more than 96 per cent of mercury removal under optimised conditions of high charge (1.3 Ah) and pH 5.5. However, under highly acidic conditions, electrostatic repulsions caused by H+ ions lead to lower mercuric ion removal. The experiments are statistically designed using box-behnken experimental design model. This model is also used to derive a second order polynomial equation, which can be used to optimise the key parameters for maximising the removal percentage. R 2 value of 0.9762 is obtained from the regression analysis. This shows a close fit between the experimental results and model predictions.
Page(s): 938-943
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(11) [November 2004]

Files in This Item:

File Description SizeFormat
JSIR 63(11) 938-943.pdf323.74 kBAdobe PDFView/Open
 Current Page Visits: 750 
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: 569389 since 06-Feb-2009  Last updated on 14-Aug-2014Webmaster: nopr@niscair.res.in