BİLDİRİLİ OLARAK KATILDIĞI ULUSLARARASI KONGRELER

1. Büyükgüngör, H., Aksu, Z., Kutsal, T., çağlar, A., "The Production of Lactic Acid by Free and Immobilized Lactobacillus delbrüeckii in Stirred and Column Reactors", 3rd European Congress on Biotechnology, 10-14 September, München, Germany, 1984.
2. Aksu, Z., Kutsal, T., "Lactic Acid Production from Molasses Utilizing Lactobacillus delbrüeckii and Invertase Together", 25-30 August, Amsterdam, The Netherlands, 1985.
3. Aksu, Z., Kutsal, T., "The Usage of Chlorella vulgaris in Waste Water Treatment Containing Heavy Metal Ions", 4th European Congress on Biotechnology, Amsterdam, The Netherlands, 1987.
4. Kutsal, T., Aksu, Z., "Removal of SO42-, PO43-, NO3-, NH4ü Ions from Fertilizer Industry Waste Waters", International Fertilizer Symposium 88, 7-11 March, Bursa, 1988.
5. Aksu, Z., Kutsal, T., "Adsorption of Pb(II) and Cr(VI) Ions to Chlorella vulgaris in Stirred and Fluidized Bed Reactors", Achema 88-International Meeting on Chemical Engineering and Biotechnology, 5-11 June, Frankfurt Am Main, Fed. Rep. of Germany, 1988.
6. Aksu, Z., Kutsal, T., "A Bioseparation Process for Removing Lead(II) Ions from Waste Water by Using C. vulgaris " 5th European Congress on Biotechnology, 8-13 June, Copenhagen, Denmark, 1990.
7. Gün, S., Hacıosmanoğlu, N., Ghlominejad, M., Aksu, Z., Kutsal, T., "Investigation of Biosorption of Cu(II), Ni(II) and Cr(VI) Ions to Activated Sludge", 5th European Congress on Biotechnology, 8-13 June, Copenhagen, Denmark, 1990.
8. Aksu, Z., Kutsal, T., "A Separation Process for Removing Copper(II) Ions from Waste Water by Using C. vulgaris in A Batch Stirred Reactor", Achema 91-International Meeting on Chemical Engineering and Biotechnology, 9-15 June, Frankfurt Am Main, Germany, 1991.
9.Aksu, Z., Sağ, Y., Kutsal, T., "The Usage of Various Microorganisms in Waste Water Treatment Containing Copper(II) Ions", NATO-Advanced Study Institute-Recent Advances in Industrial Applications of Biotechnology, 16-27 September, Kuşadası, Türkiye, 1991.
10.Sağ, Y., Nourbakhsh, M., özer, D., Aksu, Z., Kutsal, T., çağlar, A., "Waste Water Treatment Containing Lead(II) Ions by Using Various Biosorbents", 6th European Congress on Biotechnology, 13-17 June, Firenze, Italy, 1993.
11.Sağ, Y., Aksu, Z., Kutsal, T., "The Effect of Enzymatic Mechanisms on Heavy Metal Adsorption", The Med-Campus Programme of the European Communities-Enzymes As Industrial Tools, 5-9 July, Kuşadası, Türkiye, 1993.
12.Sağ, Y., Aksu, Z., Kutsal, T., "Determination of Rate Controlling Stage for the Adsorption of Lead(II) and Copper(II) Ions by C. vulgaris, Z. ramigera, and R. arrhizus in Batch Stirred Reactors", The Med-Campus Programme of the European Communities-Design and Operation of Bioreactors, 27 June-1 July , Kuşadası, Türkiye, 1994.
13.Aksu, Z., " Today's Biotechnology in Turkey", The Med-Campus Programme of the European Communities-Management of Innovation in Biotechnology Business, 23-27 September, Lisboa, Portugal, 1994.
14.Sağ, Y., Aksu, Z., Kutsal, T., "The Recovery of Lead(II) Ions by Ca-alginate, Immobilized Z. ramigera and C. vulgaris in a Packed Column Reactor", 7th European Congress on Biotechnology, 20-23 February, Nice, France, 1995.
15.özer, D, Ekiz, H.İ., özer, A., Aksu, Z., Kutsal, T., çağlar, A., "The Adsorption of Lead(II) to C. crispata in Fluidized Batch Reactor", 7th European Congress on Biotechnology, 20-23 February, Nice, France, 1995.
16.Ekiz, H.İ., özer, D, özer, A., Aksu, Z., Kutsal, T., çağlar, A., "Cadmium(II) Biosorption by C. crispata, R. arrhizus and S. leibleinii Kütz. in Fluidized Bed Reactor", 7th International Congress of Bacteriology and Applied Microbiology, 3-8 July, Prague, Czech Republic, 1995.
17.Sağ, Y., Aksu, Z., Kutsal, T., "New Applications of Adsorption as a Separation Process in Biotechnology and New Mathematical Approaches", The Med-Campus Programme of the European Communities-Downstream Processes in Biotechnology, 10-14 July, Kuşadası, Türkiye, 1995.
18.Dursun, A. Y., Aksu, Z., "Investigation of Biodegradation of Ferrous(II) Cyanide Compleğ Ions by Calcium Alginate Gel Immobilized Pseudomonas fluorescens Bacteria in A Packed Bed Column Reactor", The Second Trabzon International Energy and Environment Symposium-TIEES-98, 26-29 July, Trabzon, Türkiye, 1998.
19.Gönen, F., Aksu, Z., "A Comparative AdsorptionçBiosorption of Phenol to Granular Activated Carbon and Immobilized Activated Sludge in A Continuous Packed Bed Column", 2nd Chemical Engineering Conference for Collaborative Research in Eastern Mediterranean, 20-24 May, Ankara, Türkiye, 2001.
20.Açıkel, ü., Kabasakal, E., Tezer S, Aksu, Z., "Individual and Simultaneous Biosorption of Chromium(VI) and Nickel(II) onto Dried Activated Sludge", 2nd Chemical Engineering Conference for Collaborative Research in Eastern Mediterranean, 20-24 May, Ankara, Türkiye, 2001.