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Abstract

REMOVAL OF REACTIVE YELLOW 145 DYES FROM AQUEOUS SOLUTION USING ADSORPTION TECHNIQUE

L.Nageswara Rao*, P.Rohinikumar and M.Venkateswara Rao

ABSTRACT

Experimental studies are carried for improving the color removal from the effluents discharged from industrial and municipality and other sources. Dyes are widely used in several industries like textile, dyeing, paper and pulp, tannery, paint industries etc. In this present study, Activated carbon is prepared from the fire stick wood by chemical activation with phosphoric acid has been analyzed for the removal of Reactive Yellow 145 (RY) azodye from aqueous solution through batch adsorption technique. The adsorption studies are undertaken in a systematic manner and effects of different parameters such as agitation time, adsorbent size, and adsorbent dosage, initial concentration of dye in aqueous solution, volume of the aqueous solution and pH of the aqueous solution on the removal of dye are determined. From these investigations, 40 mg of ‗activated carbon from fire stick wood‘ of 240μm size is found to remove 96.76% when 25 mg/lit of RY-dye from 50ml of aqueous solution in 110 mins, the results indicate that adsorption of RY-dye is increased with increase in adsorbent dosage and decrease in adsorbent size, initial concentration and volume of the solution. A significant increase in percentage removal of RY-dye is observed as pH value is increased form 3-5.The percentage removal of dye decreases as pH value is increased beyond 6. Hence, based on the results obtained activated carbon from fire stick wood is found to be effective in RY-dye removal and can be appreciably considered as most versatile economical and feasible adsorbent for reclamation of dye from aqueous solutions.

Keywords: Reactive yellow 145, adsorbent, fire stick wood, textile industry.


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