Bitkisel Sepilelenmiş Derilerin Boyama İşleminde Kalan Boyarmaddelerin Belirlenmesi ve Traş Atıkları Kullanılarak Uzaklaştırılması
Çalışmada; bitkisel sepi/enmiş derilerin boyanması proseslerinde boyama sonrası banyoda kalan asit ve metal kompleks boyarmaddelerin miktarlarının belirlenmesi ve krom ve bitkisel tıraş atıklarının adsorban olarak kullanılması ile söz konusu boyarmaddelerin uzaklaştırılması amaçlanmıştır. Sonuçlar; asit boyarmaddelerin 97--867mg/L'1, metal kompleks boyarmaddelerin 15-369mg/L'1 lik değişen miktar aralıklarında boyama sonrası banyoda kaldığı belirlenmiştir. Denemelerde batch adsorpsiyon tekniği kullanılmıştır. Süre, pH ve adsorban miktarı parametrelerinin boya adsorpsiyonu üzerine etkisi araştırılmıştır. Elde edilen sonuçlara göre; kromlu tıraş atıklarının daha olmakla birlikte, hem kromlu hem de bitkisel tıraş atıklarının asit ve metal kompleks boyarmaddelerin uzaklaştırılasında adsorban olarak kullanılabileceğini açıkça görülmüştür. Denemelerde tüm boyarmaddeler için adsorpsiyon izoterm/erinin Langmuir modeline uygun olduğu belirlenmiştir.
Determination of Dyestuffs Remaining in Dyeing Processes of Vegetable Tanned Leathers and Their Removal by Using Shavings
Present study aimed an investigation of amounts of acid and metal complex dyes remaining in dyeing processes of vegetable tanned leathers and their removal by using chromium and vegetable shavings as adsorbents. The results indicated that 97-867 mgL" of acid dyes and 15- 369 mgL" of metal complex dyes remain at the end of dyeing processes of vegetable tanned Ieathers. Batch adsorption technique was used in adsorption experiments. The effects of time, pH and adsorbent amount parameters on dye adsorption were investigated. From the results it was clearly seen that both chromium and vegetable shavings could be used as adsorbents for acid and metal complex dyes, while chromium shavings performed better. The experimental data of adsorption isotherms of all dyes fit well to the Langmuir model.
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- 1- Poon, C. 8., Huang, Q. P., Fung, C.: Degradation of cuprophenyl Yellow RL by UV/H202/Ultrasonication (US) process in aqueous solution, Chemosphere, 1999, 38, 1005-1014 p.
- 2- Brown D.: Effects of colorants in the aquatic environment, Ecotoxicology Environ. Safety, 1987, 13, 139 p.
- 3- Buitron, G., Gonzales, A.: A. Characterization of the microorganisms from an acclimated activated sludge degrading phenolic compounds, Water Sci. Techno/., 1996, 34, 289 p.
- Mohn, W. VII., Martin V. J. J. E., Yu, T.: Biochemistry and ecology of resin acid biodegradation in pulp and paper mill effluent treatment systems, Water Sci. Techno/., 1999, 40, 273p. 4- Tremlett, R.J., Leafe, M. K.:Leather technologists pocket book, Society of Leather Technologists and Chemists, 1999, 101 p.
- 5. Ozgunay, H., Mutlu M.M., Kilicarislan C., Yumurtas, A.: Dyeing properties of simple acid and meta/complex dyestuffs on the leathers tanned with various tanning materialsTekstil ve Konfeksiyon, 2009, 4, 292 p.
- 5- Malik P.K.: Use of activated carbon prepared from sawdust and rice husk for adsorption of acid dyes: case study of acid yellow Dyes Pigments, 2003, 56, 239 p.
- 7- Chiou, M.S., Li, H. Y.: Adsorption behavior of reactive dye in aqueous solution on chemical cross-linked chitosan beads, Chemosphere, 2003, 50, 1095 p.
- 8- Shukla, A., Zhang, Y.H., Dubey, P., Margrave J.L., Shukla S.S.: The role of sawdust in the removal of unwanted materials from water J. Hazard. Mater., 2002, 95, 137 p. 18 deri bilim/journal ot leather science
- Garg, V.K., Gupta, R., Yadav, A.B., Kumar, R.: Dye removal from solution by adsorption on treated sawdust, Bioresour. Techno/., 2003, 89, 121 p.
- Ozacar, M., Sengil, I.A.: Adsorption of metal complex dyes from aqueous solutions bypine sawdust, Bioresour. Techno/., 2005, 96, 791 p.
- Ramakrishna K.R., Viraraghavan T.: Use of slag for dye removal, Waste Management, 1997, 17 (8), 483 p.
- Brown E.M., Taylor M.M., Marner W.M.: Removal of dyes from aqueous solutions by adsorption on chrometanned solid wastes generated in the leather industry, Journal of the American Leather Chemists Association, 1996, 91(10), 270 p.
- Cabeza L.F., Taylor M.M., Dimaio G.L., Brown E.M., Marmer W.N., Carrio R., Celma P.J., Cot J.: Use of chromium-collagen wastes for the removal of tannins from wastewaters, Waste Management, 1998,18, 211 p.
- Zhang M., Shi B.: Adsorption of dyes from aqueous solution by chromium-containing leather waste, Journal of the Society of Leather Technologists and Chemists, 2004, 88 (6), 236p. SLTC Official Methods of Analysis, 1996
- American Society for Testing and Materials (ASTM), 2005 Saka E. E., Guler 0.: The effects of electrolyte concentration, ion species and pH on the zeta potential and electrokinetic charge density of montmorillonite, Clay Minerals, 2006, 41, 853p.
- Aravindhan R., Fathima N.N., Flao Ft., Nair U.: Utilization of calcium alginate beads as adsorbent for removal of dyes from tannery wastewaters, Journal of the American Chemists Association, 2006, 101, 223 p.
- Cot J., Aramon C.: Waste processing in the tannery: production of gelatin, reconstituted collagen and glue from chrome-tanned leather splits and trimmings subjected to modified detanning process, Journal of the Society of Leather Technologists and Chemists, 1986, 70 (3), 69 p.
- ISSN: 1307-427X
- Yayın Aralığı: Yılda 3 Sayı
- Yayıncı: Deri Teknologları Teknisyenleri ve Kimyacilari dernegi