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Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.19 [2012] >
IJCT Vol.19(5) [September 2012] >
| Title: | Adsorption of basic dyes from synthetic textile effluent by activated carbon prepared from Thevetia peruviana |
| Authors: | Baseri, J Raffiea
Palanisamy, P N
Kumar, P Siva |
| Keywords: | Activated carbon
Adsorption isotherm
Crystal violet
Effluent treatment
H3PO4 acid
Malachite Green
Rhodamine–B
Kinetic models
Thevetia peruviana |
| Issue Date: | Sep-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The adsorption capacity of activated carbon
obtained from Thevetia peruviana for
three basic dyes, namely Malachite Green, Crystal Violet and Rhodamine–B, available
in synthetic textile effluents has been studied. The percentage removal of Malachite
Green, Crystal Violet, and Rhodamine–B on to the activated carbon decreases
from 98.46 to 89.80, from 97.83 to 88.66 and from 97.33 to 87.12 respectively
with the increase in initial dye concentration from 25 mg/L to 100 mg/L at 30ºC. The removal data have been analyzed
using Langmuir, Freundlich, Temkin and D-R isotherm models at various
temperatures varying from 30 ºC to 45 ºC. The positive value of enthalpy indicates
that the adsorption of basic dyes on to activated carbon is endothermic, which is further supported by the increase in adsorption rate of dyes with the increase in
temperature from 30 ºC to 45 ºC. It is found that an activated carbon prepared
by the chemical impregnation of Thevetia peruviana
with H3PO4 acid can be used as the best adsorbent for the
removal of basic dyes from synthetic textile effluents. |
| Page(s): | 311-321 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.19(5) [September 2012]
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