BOYARMADDE HİDROLİZİNİN REAKTİF BOYAMA ATIKSULARININ OZONLAMA İLE RENK GİDERİMİNE ETKİLERİNİN ARAŞTIRILMASI

Year 2007, Volume: 17 Issue: 2, 119 - 125, 01.12.2007

Hüseyin Aksel Eren Pınar Kurcan Pervin Aniş

Abstract

Ozon kuvvetli bir oksidandır ve tekstil atık sularının ozonlanması ile hem atık suyun rengi giderilmekte hem de organik kirlilik miktarı azaltılmaktadır. Fiske olmadan banyoda kalan oranının fazla olması nedeniyle reaktif boyarmaddeler ozonlama yoluyla renk giderimi çalışmalarında sıklıkla kullanılmışlardır. Literatürdeki çalışmalarda, numune reaktif boyarmadde çözeltileri gerçek boyama atık sularına benzetilmek için ozonlama öncesinde hidroliz edilmiştir. Reaktif boyarmaddelerin hidrolizi aslında bağ yapabilme kabiliyetleriyle ilgilidir. Bunun yanında; farklı araştırmacıların farklı hidroliz şartları uygulamaları hatta bir kısmının hidroliz yapmaması boyarmadde hidrolizinin ozonlama ile renk giderimi üzerine etkisi konusunda kafa karıştırıcıdır. Ozonlama ile renk giderimi çalışmalarında, gerçek boyama banyolarındaki boyarmaddenin hidroliz olma davranışını simüle etmek için deney çözeltilerine uygulanan boyarmadde hidroliz işlemininin gerekliliği üzerine literatürde yorum eksikliği görülmektedir. Bu çalışmada, CI Reactive Yellow 167 monoazo reaktif boyarmaddesinin ozonlama yoluyla renk gideriminde farklı sıcaklıklarda ve sürelerde, farklı alkaliler ile yapılan hidroliz işlemlerinin renk giderimine, ozon verimine ve KOİ giderimine etkisi karşılaştırılmalı olarak incelenmiştir. Deney sonuçları hidroliz işleminin renk giderimi üzerinde ihmal edilebilir derecede küçük etkiye sahip olduğunu göstermiştir

Keywords

Ozon, atık su, renk, renk giderimi, reaktif boyarmadde, KOİ

INVESTIGATION OF THE EFFECTS OF DYE HYDROLYSIS ON DECOLORISATION OF REACTIVE DYEING EFFLUENTS BY OZONATION

Abstract

Ozone, a stong oxidative agent, not only removes the color of the effluent but also reduces the organic pollution values. Numerous decolorisation studies on reactive dyeing effluents by ozonation has been made considering low fixation degrees of reactive dyes. Hydrolysis of reactive dyes had been reported in some studies in order to simulate actual reactive dyeing effluents. However, the hydrolysis of reactive dyes primarily effects the bonding capacity and its effects on decolorisation needs to be discussed. Also different hydrolysis procedures had been reported in some studies while no hydrolysis had been reported in some others. At this study, effects of various hydrolysis procedures using different temperatures, process time and alkalis on decolorisation and COD reduction of CI Reactive Yellow 167 has been investigated. Results indicate neglicible effect of hydrolysis on decolorisation

Keywords

Ozone, effluent, color, decolorisation, reactive dye, COD

References

• 1. Vandevivere, P.C., Bianchi, R., Verstreate, W., Treatment and Reuse of Wastewater From The Textile Wet Processing Industry: Review Of Emerging Technologies, Journal Of Chemical Technology And Biotechnology, 1998, 72, 289-302.
• 2. O’Neill, C., Hawkes, F.R., Hawkes, D.L., Colour In Textile Effluents-Sources, Measurement, Discharge Consents And Simulation: A Review, Journal Of Chemical Technology And Biotechnology, 1999, 74, 1009-1018.
• 3. Cooper, P., Removing Colour From Dyehouse Waste Waters – A Critical Review of Technology Available, JSDC, 1993, 109(3), 97-100.
• 4. www.p2pays.org, Textile Industry Sector Notebook Project, 1997, p35.
• 5. Aspland, J.R., Chapter 13:Dyeing Blends:Polyester/Cellulose, Textile Chemist and Colorist, 1993, 25(8), 21- 26.
• 6. Shore, J., Blends Dyeing, Society Of Dyers And Colourists Publication, Manchester-UK, 1998.
• 7. http://www.icac.org, Estur, G., Becerra, C.A.V., Developments In World Fibre Consumption Pattern: An Overview of 1996 and 2000 FAO/ICAC World Fibre Consumption Survey . 8. www.chemsoc.org, Hutchings, M.G., Ebenezer, W.J., Super Efficient Dyes For The Coloration Of Cotton: The Procion XL+ Range.
• 9. www.ozoneapplications.com
• 10.Strickland, A.F., Perkins, W.S., Decolorization Of Continious Dyeing Wastewater by Ozonation, Textile Chemist and Colorist, 1995, 27(5), 11-
• 11.Alaton, I.A., Kornmüller, A., Jekel, M.R., Ozonation of Spent Reactive Dye-Baths: Effects Of HCO3 -2 /CO3 -2 Alkalinity, Journal Of Environmental Engineering, 2002, 128(8), 689-696.
• 12. Hsu, Y.C., Chen, J.T., Yang, H.C.,Decolorization of Dyes Using Ozone in a Gas-Induced Reactor, AICHE Journal, 2001, 47(1), 169-176.
• 13. Muthukumar, M., Selvakumar, N., Studies on The Effect Of İnorganic Salts on Decolouration of Acid Dye Effluents by Ozonation, Dyes And Pigments, 2004, 62, 221-228.
• 14.Sevimli, M.F., Sarıkaya, H.Z., Ozone Treatment of Textile Effluents and Dyes: Effect of Applied Ozone Dose, pH and Dye Concentration, J.Chem.Technolog. Biotechnol, 2002, 77, 842-850.
• 15.Szpyrkowicz, L., Juzzolino, C., Kaul, S.N., A Comparative Study on Oxidation of Disperse Dyes By Electrochemical Processes, Ozone, Hypchlorite and Fenton Reagent, Wat.Res, 2001, 35(9), 2129-2136.
• 16.Arslan, I., Balcioglu, A., Effect Of Common Reactive Dye Auxiliaries on The Ozonation of Dyehouse Effluents Containing Vinylsulphone and Aminochlorotriazine Ring, Desalination, 2000, 130, 61-71.
• 17. Neamtu, M., Yediler, A., Siminiceanu, I., Macoveanu, M., Decolorization of Disperse Red 354 Azo Dye in Water by Several Oxidation Processes-A Comparative Study, Dyes and Pigments, 2004, 60, 61-68.
• 18.Zhang, F., Yediler, A., Liang, X. Et al., Effects of Dye Additives on The Ozonation Process and Oxidation ByProducts: A Comparative Study Using Hydrolyzed C.I. Reactive Red 120, Dyes And Pigments, 2004, 60, 1-7.
• 19.Oğuz, E., Keskinler, B., Çelik Z., Ozonation of Aqueous Bomaplex Red Cr-L Dye in a Semi-Batch Reactor, Dyes And Pigments, 2005, 64, 101-108.
• 20.Wu, J., Wang, T., Ozonation of Aqueous Azo Dye in A Semi-Batch Reactor, Wat.Res., 2001, 35(4), 1093-1099.
• 21.Saunders, F.M., Gould, J.P., Southerland, C.R., The Effect of Solute Competition on Ozonylis of Industrial Dyes, Wat.Res., 1983, 17(10), 1407- 1419.
• 22. Lin, C.C., Liu, W.T., Ozone Oxidation in a Rotating Packed Bed, J.Chem. Technol Biotechnol, 2003, 78, 138-141.
• 23.Konsowa, A.H., Decolorisation of Wastewater Containing Direct Dye by Ozonation in a Batch Bubble Column Reactor, Desalination, 2003, 158, 233- 240.
• 24.Koch, M., Yediler, A., Lienert, D., Ozonation Of Hydrolysed Azo Reactive Yellow 84, Chemosphere, 2002, 46, 109-113.
• 25. Ciardelli, G., Ranieri, N., The Treatment and Reuse of Wastewater in The Textile Industry by Means of Ozonation And Electroflocculation, Wat.Res., 2001, 35(2), 567-572.