Investigation of adsorption characteristics of some reactive dyestuff by live activated sludge biomass

ABSTRACTM.Sc. THESISINVESTIGATION OF ADSORPTION CHARACTERISTICS OF SOMEREACTIVE DYESTUFF BY LIVE ACTIVATED SLUDGE BIOMASSFatma Elçin ERKURTÇUKUROVA UNIVERSITYINSTITUTE OF NATURAL AND APPLIED SCIENCESDEPARTMENT OF ENVIRONMENTAL ENGINEERINGAssoc.Prof.Dr. Mesut BAŞIBÜYÜKSupervisor:2006 Pages :57Year :Assoc.Prof.Dr. Mesut BAŞIBÜYÜKJury :Prof. Dr. Ahmet YÜCEERProf. Dr. lyas DEHRIn this study, the adsorption capacities of Reactive Black 5 and CibacronYellow HR by activated sludge were investigated. The maximum adsorptioncapacities of these dyes by activated sludge were found 26.4 mg/g and 4.66 mg/g.The kinetics of sorption have been analyzed by three kinetics models, the first orderlagergren model, the second order model and a pseudo second order model. Kineticsof both adsorption processes was best described by pseudo-second order model. Thethermodynamic caculations showed that Gibbs fre energies of both processes (RB5,G= -1.2kJ/mol; CBYHR, G= -1.48kJ/mol) have negative values indicating thespontaneous nature of the processes.Key Words : Abiotic Removal, Reactive Dyes, Kinetic, Isotherm