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Issue No:3, Vol.3 |
March - 2010 |
ISSN: 0974-5645 |
| RESEARCH ARTICLES |
Viewers & PDF |
| 15. Role of tapioca peel activated carbon (TPAC) in decolourisation of Red Brown C4R reactive dye.C. Parvathi, T. Maruthavanan, S. Sivamani, C. Prakash and C.V.Koushik (2010) Indian J.Sci.Technol. Vol. 3, Issue 3, pp: 290-292. Domain site: http://www.indjst.org. |
 
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- Abstract
A carbon sorbent derived from an agricultural waste, tapioca peel was applied to study the removal of a reactive dye,
Red Brown C4R from aqueous solution. Batch experiments were performed as a function of process parameters like
agitation time, initial dye concentration and carbon dose. Modified Ritchie second order equation better predicted the
kinetic results compared to other rate equations (pseudo first order & pseudo second order) tested. Among the
isotherm models applied to the equilibrium data Freundlich model better predicted the experimental values. The
adsorption capacity was 121.47 mg g−1 at an initial pH of 6 and at 32±0.5°C. The adsorption capacity increased with
increase in temperature. The influence of pH on dye removal was not significant. An optimum carbon dose of 1.2 g L−1
was required for the maximum removal (96%) of dye from its 60 mg L−1 solution.
- Keywords: Adsorption, Red Brown C4R, tapioca peel, activated carbon, kinetics, isotherms
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