MODIFIED TECHNIQUE FOR REMOVAL OF DISPERSE BLUE DYE BY USING FUNCHIONALIZED ACTIVATED CARBONHAZIM AZIZ AL-ROBAI, SANAA ABDULRAZAQ GASSIM, GAITH SALAH HADI AL-MAMOORIAbstract The industries processes of textile are among the main industries that, discharge colored waste material, that contains a variety of contaminants, together with acidic or caustic dissolved solids, poisonous chemicals, and lots of completely different dyes. A new modified technique was used to produce activated and functionalized carbon from dead leaves of Conocarpus L. A serial experiments of adsorption were performed at lab temperature, using different values of pH 2,4,6,8 and 10, shaking time 5, 15, 30, 60 and 90 minutes and primary concentration of dye 10,20,30,60,90 and 120 mg/L, using the concuss speed of 225 rpm. The results show the removal rate percentage of dye in the beginning of the experiment is higher and it had been approved, that the dye removal rate because of the availability of site on the surfaces of activated carbon maybe increasesd with the increase of time to a certain degree because it is a pH depending a long with the dye removal percentage. Also the highest percentage of removal was recorded at pH 2; whereas the dye removal was not considerably modified once the pH value was increased from 4 to 10.
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