The adsorption of color from dye wastewater
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The adsorption of color from dye wastewater on 4 agricultural residues: Dried longantree branch, dried longan leaf , Dried mango tree branch , Dried mango leaf were investigated.The study divided in to 3 Experiment; Exp1. The characteristics of agricultural residue as sorbent, Exp2. The optimum contact time and proper amount of agricultural residues for color removal fromdye wastewater and Exp3. The efficiencyof sorbent were evaluated compare with FrundlichIsothermand Langmuir Isotherm. The results show all 4 agricultural sorbents had similar characteristics with pH 5.7- 6.8, % carbon 40.13-50.66. The Optimum time for high sorption capacity for dried longantree branch, dried longan leaf, dried mango tree branch and dried mango leaf were 60,90, 30 and 90 minutes, respectively. The average dye removal were 32.0,40.8, 47.5 and 55.9 respectively. Adsorptionof dried longantree branch, dried longan leaf and dried mango tree branchwas fitted with Langmuir whereas dried mango leaf was fitted with Frundlich Isotherm. Results obtains shown mango leave had highest efficiency for dye removal at concentration 300 mg/l.
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