title: Effect of ozonation on the biological treatability of a textile mill effluent.
abstract: Ozonation applied prior to biological processes, has proved to be a very effective chemical treatment step mostly for colour removal when soluble dyes are used in textile finishing operations. Its impact on biological treatability however has not been fully evaluated yet. This study evaluates the effect of ozonation on the quality of wastewater from a textile mill involving bleaching and reactive dyeing of cotton and synthetic knit fabric. The effect of ozonation on COD fractionation and kinetic coefficients defining major biological processes is emphasised. The results indicate that the extent of ozone applied greatly affects the remaining organic carbon composition in the wastewater. The relative magnitude of different COD fractions varies as a function of the ozone dose. Ozonation does not however exert a measurable impact on the rate of major biological processes.
authors.affiliation: Istanbul Technical University, Environmental Engineering Department, 80626, Maslak, Istanbul, Turkey.
authors.forename: O
authors.initials: O
authors.lastname: Karahan
authors.forename: H
authors.initials: H
authors.lastname: Dulkadiroglu
authors.forename: I
authors.initials: I
authors.lastname: Kabdasli
authors.forename: S
authors.initials: S
authors.lastname: Sozen
authors.forename: F Germirli
authors.initials: FG
authors.lastname: Babuna
authors.forename: D
authors.initials: D
authors.lastname: Orhon
mesh_terms: D004396:Coloring Agents / Q000378:metabolism*; D007220:Industrial Waste; D007700:Kinetics; D010083:Oxidants, Photochemical / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010126:Ozone / Q000737:chemistry*; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology
chemical_list: D004396:Coloring Agents; D007220:Industrial Waste; D010083:Oxidants, Photochemical; D010126:Ozone; D010100:Oxygen