title: Color removal of reactive dyes from water by clinoptilolite.
abstract: The adsorption of reactive dyes on Gordes (Turkey) clinoptilolite was investigated by a series of batch and column adsorption experiments. Three reactive dyes (Everzol Black, Everzol Red, Everzol Yellow) were used in laboratory studies. Synthetic wastewaters were used and the ability of natural zeolite (clinoptilolite) and their modified form were examined. The adsorption results, in batch and column reactor, indicate that natural zeolite have limited adsorption capacities of the reactive dyes but are substantially improved upon modifying their surfaces with quaternary amines (HTAB). The degree of hydrophilicity is found to play an important role in the uptake of reactive dyes.
authors.affiliation: Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey. armagan1@itu.edu.tr
authors.forename: Bülent
authors.initials: B
authors.lastname: Armağan
authors.forename: Mustafa
authors.initials: M
authors.lastname: Turan
authors.forename: Orhan
authors.initials: O
authors.lastname: Ozdemir
authors.forename: Mehmet S
authors.initials: MS
authors.lastname: Celik
mesh_terms: D000327:Adsorption; D004396:Coloring Agents / Q000302:isolation & purification*; D007220:Industrial Waste; D013783:Textile Industry; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D017641:Zeolites / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; C083175:clinoptilolite; D017641:Zeolites