|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.19 [2012] >
IJCT Vol.19(1) [January 2012] >
| Title: | Application of factorial design for adsorption of thallium(III) ion from aqueous solutions by pistachio hull |
| Authors: | Sheibani, Ali
Zare-Khormizi, Meysam |
| Keywords: | Adsorption
Factorial Design
Modeling
Pistachio Hull
Thallium(III) |
| Issue Date: | Jan-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The removal of thallium cation from aqueous solutions has
been studied using pistachio hull as an adsorbent. The effect of variables such
as solution pH, contact time and adsorbent amount has been investigated
and these are optimized using a factorial design method. A model is developed
to relate the content of adsorption to the variables. This model allows the
prediction of the extent of adsorption at different conditions. Response
surfaces are used for showing the effects of different variables on the content
of adsorption. The analysis of variance is used to evaluate the validity of the
model. There is no lack of fit found at the confidence level of 95%. The
correlation coefficient between the calculated and the experimental data indicates
good performance of the model. Under optimum conditions, a maximum removal of
96.5% is achieved. Both the Langmuir and Freundlich adsorption isotherms are
found to be suitable for describing the biosorption of thallium ions onto
pistachio hull. |
| Page(s): | 48-51 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.19(1) [January 2012]
|
|
