• Baban A., Ciliz, N. K., Olgun, H., Compost potential of chicken manure; a case study from Corum, Proc. of the Symp., Appropriate Environmental and Solid Waste Management and Technologies for Developing Countries - ISWA2002, Ed., July 2002, Istanbul, Turkey.
• Baban, A., Avaz, G., Yediler, A., Wastewater Management in Textile Industry - A case study on Treatability of Reusable and Remaining Streams, "From Transitional Economy to Sustainable Development, NATO-ARW Proc., Dnieprepetrovsk, Ukraine Oct. 22-25, 2001.
• Karvan, O., Hilmioğlu, B., Atakül, H., 2000. "Mixing Properties of Lignite-Dolomite Binary System in a Fluidised Bed", 14th Internatioal Congress of Chemical and Process Engineering, Prag, August 2000.
• Iskender, H., Hilmioğlu, B., 2000. "Dual Slope PID Controller", 14th Internatioal Congress of Chemical and Process Engineering, Prag, 27-31 August 2000.
• Kaya, D., Saraç, H.I, Olgun, H., Tırıs, M., A Study of Axial Flow Pump Impellers-Effects of pump Design Parameters on its Performance, Proc. The Twelfth International Symposium on Transport Phenomena, 701-705, Istanbul, 2000.
• Kaya D., Saraç H.I., Olgun H., Energy Saving in Compressed Air Systems, 2001. Proc. The Fourth International Thermal Energy Congress, 69-74. Çesme/TURKEY, 2001
• Kaya D, Energy Saving Potential in Air Conditioners and Chiller Systems, Proceedings of the First International Exergy, Energy and Environment Symposium, 69-74, Izmir, Turkey, 2003.
• Kaya D., Saraç H.I, Mathematical Modelling of Multiple-effect Evaporators and Energy Economy, Proceedings of the First International Exergy, Energy and Environment Symposium, 457-462, Izmir, Turkey, 2003.
• Şener T, Kaya D, Güngör C, Akgün F, Tırıs M, Advances in The Molten Carbonate Fuel Cell Technology, Proceedings of the First International Exergy, Energy and Environment Symposium, 659-664, Izmir, Turkey, 2003.
• Ayaz, Ç.S., Akça, L., Wastewater treatment by recycled constructed wetland systems, 1st World water Congress of the International Water association, Paris 3-7 July 2000.
• Ayaz, Ç.S., Akça, L., Treatment Garden: A Recirculating constructed wetland for ındividual houses, 7st International Conference on Wetland Systems for Water Pollution Control ,International Water Association, Florida-US 11-16 November 2000.
• Akça, L., Ayaz, Ç.S., Tunçsiper, B., Yinanç, A., Bayhan, H., Ceyhan, M.,( 2003). Scientific Basis of Nonpoint Source Pollution Control in Reservoir Catchments by Constructed Wetland Systems, International Symposium on Marine and Inland Pollution Control and Prevention In the Black Sea and Mediterranean Sea, Istanbul, 15-18 May 2003.
• Tunçsiper, B., Ayaz, S., Akça, L., Performance Analysis and Modeling of an Experimental Constructed Wetlands, 9th International Conference on Wetland Systems, Avignon(France), 26 th of September-1st of October 2004.
• Tunçsiper, B., Ayaz, S., Akça, L., Pehlivan, E., Gunes, K., Water Pollution Control in Drinking Water Catchments by Constructed Wetlands-Aquatic Pond Systems, 9th International Conference on Wetland Systems, Avignon(France), 26 th of September-1st of October 2004.
• E. Apak, Review of Existing Legislation in Turkey Concerning Industrial Risk Mitigation and Risk Management, Requirements for Their Compliance with the SEVESO II Directive; Dioxin Example, Proceeding of the Major Industrial Risk Prevention and Implementation of the SEVESO II Directive, TUBITAK, Gebze-Kocaeli, Turkey, 9-12 October 2001.
• E. Ekinci, MF. Yardim, E. Apak, M. Minkova, M. Razvigorova, T. Budinova, N. Petrov, Formation of Porous Structures of Semicokes from Pyrolysis of Turkish Coals in Different Atmosphere, 11th Int Conf. on Coal Science, San Francisco, 30 September 2001.
• E. Ekinci, MF. Yardim, E. Apak, M. Minkova, M. Razvigorova, T. Budinova, N. Petrov, Liquid Products from Pyrolysis of Turkish Coals in Different Atmosphere, 11th Int Conf. on Coal Science, San Francisco, 30 September 2001.
• E. Ekinci, MF. Yardim, T. Budinova, E. Apak, N. Petrov, M. Minkova, M. Razvigorova, Investigation of the Process of Mercury Adsorption from Aqueous Solution by Activated Carbon Obtained from Furfural, Proceedings of the 25th Biennial Conference on Carbon, Lexington, KY, USA, 14-19 July 2001.
• Savova, D., Apak, E., Ekinci, E., Petrov, N., Budinova, B., Razvigorova, M., and Minkova, M., Production of Carbon Adsorbents from Biomass Products, Biomass for Energy and Industry, 1st World Conference and Technology Exhibition, Sevilla, Spain, 5-9 June 2000.
• Apak, E., Yardım, M.F., Ekinci, E., Investigation of Optical Texture of Pitch Cokes from Avgamasya Asphaltite and Göynük Oil Shale, EUROCARBON 2000, Berlin, Germany, 9-13 July 2000.
• Apak, E., Yardım, M.F., Ekinci, E., Turkish Asphaltites; Source for Pitch Precursors and Carbon Related Materials, 2nd Eurashphalt and Eurobitumen Congress, Barcelona, Spain, 20-22 September 2000.
• Okay, O.S., Tolun, L., Telli-Karakoç, F., Tüfekçi, V.,Tüfekçi, H., Morkoç, E. (2000). İzmit Bay (Turkey) ecosystem after Marmara earthquake and subsequent refinery fire: The long-term data. 16th Annual International Conference on Contaminated Soils, Sediments and Water, October 16-19, 2000, University of Massachusetts, Amherst, USA.
• Tolun, L., Okay, O., Tüfekçi , V., Telli Karakoç, F., Karakaş, D., Tüfekçi, H., Olgun, A., Morkoç, E. Pollution Monitoring of Izmit Bay (Turkey): Contribution of the Land-based Sources After the Earthquake. The 6th International Conference on the Mediterranean Coastal Environment, MEDCOAST 03. Symposium Proceeding. 7-11October 2003, Ravenna-Italy.
• Okay, O.S., Tolun, L., Telli-Karakoç, F., Tüfekçi, V.,Tüfekçi, H., Morkoç, E. (2000). İzmit Bay (Turkey) ecosystem after Marmara earthquake and subsequent refinery fire: The long-term data. 16th Annual International Conference on Contaminated Soils, Sediments and Water, October 16-19, 2000, University of Massachusetts, Amherst, USA.
• Tolun, L.T., Martens, D., Okay, O., Schramm, K.W. Polycyclic aromatic hydrocarbon contamination in coastal sediments of Thr İzmit Bay(Marmara Sea): Case studies before and after the İzmit earthquake. The 2nd Asian International Conference on Ecotoxicology and Environmental Safety, September 26-29, 2004, Songkla, Thailand
• Murat S., Ateş Genceli E., Taşlı R., Artan N. and Orhon D., (29-31 October, 2001) Sequencing Batch Reactor Treatment of Tannery Wastewater For Carbon and Nitrogen Removal, IWA Conference For Water and WW Management for Developing Countries pp 513-520 Kuala Lumpur Malaysia
• Hilmioglu, B., Okutan, H., Atakul, H., Ekinci, E., "Investigation of Emissions of a Woody Coal", II.Air Pollution Modelling and Control Symposium, Istanbul Technical University, Istanbul, Turkey, 1995.
• Hilmioglu, B., Ekinci, E., "Combustion of Lignites by Using Limestone Without Air Pollution", Limestone for Environmental Protection Seminar, Istanbul, Turkey, 1995.
• Hilmioglu, B., Atakul, H., Yardım, M.F., Ekinci, E., "Fluidised Bed Combustion Behaviour of Beypazarı and Çan Lignites", II. National Chemical Engineering Congress, İstanbul, Turkey, 1996.
• Hilmioğlu, B., Engeloğlu, E., Atakül, H., "Elutriation Characteristics of Beypazarı ve Çan Lignites from a Cold Fluidised Bed", III. National Chemical Engineering Congress, Erzurum, Turkey, 1998.
• Hilmioğlu, B., Akselli, B., Yardım, M.F., Atakül, H., "Investigation of Relationship Between Sintering Mechanisms and Agglomeration of Some Turkish Lignites", III. National Chemical Engineering Congress, Erzurum, Turkey, 1998.
• Akselli, B., Hilmioğlu, B., Atakül, H., "The Effect of Sodium Okside and Calcium Okside Addition on Ash Fussion Temperatures of Lignites", III. National Chemical Engineering Congress, Erzurum, Turkey, 1998.
• Altınbaş, U., Ayaz, S., Yilmaz H.R., The Inventory of Industrial and Domestic Wastewater Distrubition in İzmit, İTÜ 8. Industrial Pollution Control Conference , İstanbul 18-20 September 2002.
• Telli, K. F., Tolun, L., Henkelman, B., Climm, C., Okay, O., Schramm, K.W., Marmara Denizi'nin önemli körfezlerinden olan İzmit körfezinde polisiklik aromatik hidrokarbonların ve poliklorlu bifenillerin dağılımı. ., I. Ulusal Deniz Bilimleri Konferansı. 30 Mayıs- 2 Haziran 2000. ODTÜ. Ankara.
• Tüfekçi H., Morkoç E., Tolun L., Okay, O., Tüfekçi, V., Karakoç F. T., Endüstriyel atıksuların İzmit Körfezi besin tuzları dağılımına etkileri., I. Ulusal Deniz Bilimleri Konferansı. 30 Mayıs-2 Haziran 2000. ODTÜ. Ankara
• Telli Karakoç,F., Karakaş,D., Tolun, L., Başak, S., Fingerprint analysis of source of the PAHs in İzmit Bay. Second International Conference, Oceanography of the Eastern Mediterranean and Black Sea, Similarities and Differences of the Two Interconnected Basins. 14-18 October 2002, Ankara-Turkey
• Tüfekçi, H., Karakaş, D., Tüfekçi , V., Morkoç, E. Tolun, L., Endüstriyel ve Evsel tıksuların Simav Çayı Su Kalitesine Etkisi. 9. Endüstriyel Kirlenme Kontrolü Sempozyumu, ITÜ, 2004 İstanbul.
• Okay, O.S., Karacık, B., Tüfekçi, V., Tolun, L., Kompleks Atıksuların Deniz Ekosistemine Etkilerinin Biyodeney ve Biyogösterge Teknikleri ile Belirlenmesi. 9. Endüstriyel Kirlenme Kontrolü Sempozyumu, ITÜ, 2004 İstanbul.
• Murat S., Insel G., Artan N. and .Orhon D. (23-25 September, 2002), Effect of Temperature on the Nitrogen Removal Performance of a Sequencing Batch-Reactor, Symposium for Small Water and Wastewater Treatment Systems, Istanbul, Turkey
• Ovez S., Murat S., Orhon D., (2-4 June, 2004), Filamentous Microorganisms Occurred in Activated Sludge in Turkey, Symposium 9th Industrial Pollution Control, İTÜ, Istanbul, Turkey
• Tunçsiper,B., Ayaz, Ç.S., Akça , L., Modeling and evaluation of nitrogen removal performance in subsurface flow and free water surface constructed wetlands, IWA Specialized Conference Nutrient Management in Wastewater Treatment Processes and Recycle Streams, Krakow-Poland, 19-21 September 2005.
• Ayaz, Ç.S., Tunçsiper,B., Akça , L., Dikec D., Evaluation of nitrogen removal and plant uptake in subsurface flow and free water surface constructed wetlands, IWA Specialized Conference Nutrient Management in Wastewater Treatment Processes and Recycle Streams, Krakow-Poland, 19-21 September 2005.