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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(1) [January 2011] >
| Title: | Removal of Eriochrome black-T by adsorption on to eucalyptus bark using green technology |
| Authors: | Dave, Pragnesh N
Kaur, Satindar
Khosla, Ekta |
| Keywords: | Azo dye
Eriochrome black-T
Adsorption
Eucalyptus bark
Kinetics
Thermodynamics |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The efficiency of eucalyptus bark as a low cost adsorbent for removing an
azo dye from an aqueous solution has been investigated in batch mode. The azo dye, Eriochrome black-T
(EBT) is removed by adsorption over field waste eucalyptus bark after minimum
chemical treatment. The investigations are carried out to study the effects of
pH, adsorbate concentration, adsorbent dosage, contact time and temperature.
The thermodynamic parameters were obtained from Langmuir and Freundlich
adsorption isotherm models. The kinetic studies showed that the adsorption
reaction is of first order. A fixed-bed column has been designed, and necessary
parameters have been calculated by applying a mass transfer kinetic approach.
Experiments are also performed for the recovery of loaded dye through chemical
regeneration of spent columns. |
| Page(s): | 53-60 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(1) [January 2011]
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