Pollution Research Paper

Vol 33, Issue 02, 2014; Page No.(341-347)

COLUMN ADSORPTION STUDIES OF A REACTIVE DYE USING A NOVEL POLYMER REINFORCED ADSORBENT

N. GOPAL, M. ASAITHAMBI, P. SIVAKUMAR AND V. SIVAKUMAR

Abstract

A Novel adsorbent was prepared by coating polyaniline over an activated carbon prepared from the seeds of Prosopis Juliflora using ZnCl2 as activating agent (PPAC). The adsorbent reinforced with polyaniline has good adsorption characteristics with a surface area of 1028 m2/g. Column mode adsorption study was carried out by using PPAC as an adsorbent packed in a column for the removal of a reactive dye (Reactive Blue 19) from aqueous solution. The effect of operating parameters such as flow rate, bed height and inlet dye concentration on the sorption characteristics of RB19 was investigated at room temperature (30°C) and the natural pH of dye solution. The kinetic models suggested by Thomas, Yoon-Nelson and Bohart-Adam were employed to study this adsorption system. Out of the three models tested for the adsorption of RB19 onto PPAC column, the YN model provides excellent fit with very high r2 (0.9783 to 0.9955) and low Sd (0.10 to 0.65).

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