title: Adsorption studies on the removal of Vertigo Blue 49 and Orange DNA13 from aqueous solutions using carbon slurry developed from a waste material.
abstract: Waste material (carbon slurry), from fuel oil-based generators, was used as adsorbent for the removal of two reactive dyes from synthetic textile wastewater. The study describes the results of batch experiments on removal of Vertigo Blue 49 and Orange DNA13 from synthetic textile wastewater onto activated carbon slurry. The utility of waste material in adsorbing reactive dyes from aqueous solutions has been studied as a function of contact time, temperature, pH, and initial dye concentrations by batch experiments. pH 7.0 was found suitable for maximum removal of Vertigo Blue 49 and Orange DNA13. Dye adsorption capacities of carbon slurry for the Vertigo Blue 49 and the Orange DNA13 were 11.57 and 4.54 mg g(-1) adsorbent, respectively. The adsorption isotherms for both dyes were better described by the Langmuir isotherm. Thermodynamic treatment of adsorption data showed an exothermic nature of adsorption with both dyes. The dye uptake process was found to follow second-order kinetics.
authors: Department of Chemistry, Indian Institute of Technology, Roorkee 247 667, India. vinodfcy@iitr.ernet.in
authors: Vinod K
authors: VK
authors: Gupta
authors: Imran
authors: I
authors: Ali
authors: Vipin K
authors: VK
authors: Saini
mesh_terms: D000327:Adsorption; D001557:Benzenesulfonates / Q000737:chemistry / Q000302:isolation & purification*; D002244:Carbon / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D007700:Kinetics; D009282:Naphthalenesulfonates / Q000737:chemistry / Q000302:isolation & purification*; D013783:Textile Industry; D013816:Thermodynamics; D014865:Waste Disposal, Fluid / Q000379:methods*; D014866:Waste Products; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D001557:Benzenesulfonates; D004396:Coloring Agents; D007220:Industrial Waste; D009282:Naphthalenesulfonates; D014866:Waste Products; D014874:Water Pollutants, Chemical; C526588:orange DNA13; C526587:vertigo blue 49; D002244:Carbon