Adsorption Characteristics of Malachite Green on Zeolite 


Vol. 18,  No. 3, pp. 312-319, Sep.  2012


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  Abstract

Malachite green is used a dye but malachite green is harmful toxic substance. In this study, the adsorption characteristics of zeolite has been investigated for the adsorption of malachite green dissolved in water. The effects of initial dye concentration, contact time, pH and temperature on adsorption of malachite green by a fixed amount of zeolite have been studied in batch adsorber and fixed bed. The adsorption equilibrium data are successfully fitted to the Freundlich isotherm equation in the temperature range from 25 to 45 ℃. The estimated values of k and β are 23.60-46.88, 0.225-0.347, respectively. The mechanism of the adsorption process was determined from the intraparticle diffusion model. The effects of the operation conditions of the fixed bed on the breakthrough curve were investigated. When the inlet concentration and initial flow rate of malachite green are increased, the corresponding adsorption breaktime appears to decrease. Breaktime increased with increasing bed height and length of adsorption zone showed similar patterns.

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  Cite this article

[IEEE Style]

L. JJ and U. MH, "Adsorption Characteristics of Malachite Green on Zeolite," Clean Technology, vol. 18, no. 3, pp. 312-319, 2012. DOI: .

[ACM Style]

Lee JJ and Um MH. 2012. Adsorption Characteristics of Malachite Green on Zeolite. Clean Technology, 18, 3, (2012), 312-319. DOI: .

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한국연구재단 등재학술지