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Prof.Dr. CELAL FERDİ GÖKÇAY (RETIRED)
FACULTY OF ENGINEERING
PublicationsResearchMembership & Awards
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Education

  Doctorate, University of Wales, UC Cardiff, Microbiology

Publications (INTERNATIONAL)

Journal Papers

  A.1 Tuncer, G., Karakaş, T., Balkaş, T., Gökçay, C.F., Aygün, S., (7), Land-based Sources of Pollution along the Black Sea Coast of Turkey: Concentrations and Annual Loads to the Black Sea. "Marine Pollution Bulletin", 36, (1998), p.409-423.
  A.2 Dilek, F.B., Gökçay, C.F. and Yetiş, Ü., Combined Effects of Ni(II) and Cr(VI) on Activated Sludge. "Water Research", 32, (1998), p.303-312.
  A.3 Yetiş,Ü., Demirer, G.N. and Gökçay, C.F., Effect of Chromium(VI) on the Biomass Yield of Activated Sludge. "Enzyme and Microbial Technology", 25, (1999), p.48-54.
  A.4 Demirbas, G., Gokcay, C.F. and Dilek, F.B., Treatment of Organic Chlorine in Pulping Effluents by Activated Sludge. "Water Science and Technology", 40, (1999), p.275-279.
  A.5 Taseli, B. and Gokcay, C.F., Biological Treatment of Paper Pulping Effluents by Using a Fungal Reactor. "Water Science and Technology", 40, (1999), p.93-99.
  A.6 Gökçay, C.F., Kolankaya, N. and Dilek, F.B., Microbial Solubilization of Lignites. "Fuel", 80, (2001), p.1421-1433.
  A.7 Arıcan, B., Gökçay, C.F. and Yetiş, Ü., Mechanistics of Nickel Adsorption by Activated Sludge. "Process Biochemistry", 37, (2002), p.1397-1315.
  A.8 Niğmet Uzal, Celal F Gökçay and Göksel N. Demirer., Sequential (anaerobic/aerobic) biological treatment of malt whisky wastewater. "Process Biochemistry", Vol. 39, (2003), p.pp. 279-286..
  A.9 Filiz B. Dilek, Ulku Yetis and Celal F. Gökçay, Water savings and sludge minimization in a beet-sugar factory through re-design of the wastewater treatment facility. "Journal of Cleaner Production,", 11, (2003), p.pp. 327-331.
  A.10 Celal F Gökçay, Gürkan Sin., Modeling of a Large Scale Wastewter Treatmnet Plant for Efficient Operation. " Water Science and Technology", 50, (2004), p.123-130.
  A.11 Başak Taşeli, Celal F Gökçay and Hasan Taşeli., Upflow column reactor design for dechlorination of chlorinated pulping wastes by Penicillium camemberti. "Journal of Environmental Management", 72, (2004), p. 175-179.
  A.12 Basak K. Taseli, Celal F Gökçay, Degradation of chlorinated compounds by Penicillium camembertii in batch and up-flow column reactors. "Process Biochemistry", 40, (2004), p.917-923.
  A.13 Başak K Taşeli and Celal F Gökçay, Treatment of softwood bleachery affluents by Penicillium camamberti in anerobic jars. "Fresenius Environmental Bulletin", 14, (2005), p.545-549.
  A.14 Başak K Taşeli ve Celal F Gökçay, Degradation of chlorinated compounds by Penicillium cememberti in batch and up-flow column reactors. "Process biochemistry", 40, (2005), p.917-923.
  A.15 Başak K Taşeli and Celal F Gökçay, Identification of electron acceptor properties of Penicillium camamberti used for effective treatment of chlorinated organic compounds. "Fresenius Environmental Bulletin", 14, (2005), p.347-352.
  A.16 Taşeli B.K. and Gokcay CF, Degradation of low and high molecular weight fractions of softwood bleachery effluents by Penicillium camamberti in up-flow column rector. "BULLETIN OF ENVIRONMENTAL CONTAMINATON AND TOXICOLOGY", 76, (2006), p.481-489.
  A.17 Okan Tarik Komesli, Katharina Teschner, Werner Hegemann and Celal F. Gokcay., Vacuum membrane application in domestic wastewater reuse.. "Desalination", 215, (2007), p.22-28.
  A.18 Devrim Kaya, Filiz B. Dilek and Celal F. Gökçay, Reuse of lagoon effluents in agriculture by post-treatment in a step feed dual treatment process. "Desalination", 215, (2007), p.29-36.
  A.19 Moral, H, Aksoy A, Gökçay, C.F., Modeling of the activated sludge process by using artificial neural networks with automated architecture screening. "Computers and Chemical Engineering", 32, (2008), p.2471-2478.
  A.20 Taşeli, B.K., Gökçay, C.F., Gürol, A, Influence of nickel (II) and chromium (VI) on the laboratory scale rotating biological contactor. "Journal of Industrial Microbiology and Biotechnology", 35, (2008), p.1033-1039.
  A.21 U. G. Ozkan-Yucel, C. F. Gökçay, Application of ADM1 model to a full-scale anaerobic digester under dynamic organic loading conditions. "Environmental Technology", 31, (2010), p.633-640.
  A.22 Umay Gokce Ozkan Yucel, Celal Ferdi Gokcay, Effect of Initial Azo Dye Concentration and Biomass Acclimation on Sludge Digestion and Dye Co-treatment.. "Clean-Soil, Air, Water", 38, (2010), p.387-393.
  A.23 Cisem Yigita, Gulnur Madena, Nur Disaa, Ozge Yılmaza, Abdullah Ogutvericia, Emre, Hazardous waste management in Turkey: current legislative requirements and future challenges. ". Desalination and Water Treatment", 26, (2011), p.152-159.
  A.24 Okan Tarık Komesli, Sezgin Bakırdere, Ceren Bayören and Celal F Gokcay., Simultaneous determination of selected endocrine disrupter compounds in wastewater samples in ultra trace levels using HPLC-ES-MS/MS. "Environment and Assessment", 10.1007, (2011).
  A.25 M. Muz, M. S. Sonmez, O. T. Komesli, S. Bakırdere and C. F. Gokcay, Determination of selected natural hormones and endocrine disrupting compounds in domestic wastewater treatment plants by liquid chromatography electrospray ionization tandem mass spectrometry after solid phase extraction. "Analyst", 137, (2012), p.884-889.
  A.26 M. S. Sönmez, M. Muz, O. T. Komesli, S. Bakırderec, C.F. Gökçay, An Ultrasound Aided Sequential Extraction Method for the Determination of Selected Endocrine Disrupter Compounds at trace levels in Sewage Sludge Samples from Turkey by using HPLC-ESI-MS/MS. 2012: DOI: 10.1002/clen.201100403. "Clean Air Water Soil.", (2012), p.DOI.
  A.27 Okan Tarık Komesli, and Celal Ferdi Gokcay, Investigation of sludge viscosity and its effects on the performance of a vacuum rotation membrane bioreactor. "Environmental Technology, DOI:10.1080/09593330.2013.840655", (2013), p.1-8.
  A.28 M.S. Ak , M. Muz, O.T. Komesli , C.F. Gökçay, ozone assisted process for treatment of EDC’s in biological sludge. "Chemical Engineering Journal", 217, (2013), p.273-280.
  A.29 M.S. Ak , M. Muz, O.T. Komesli , C.F. Gökçay, Enhancement of bio-gas production and xenobiotics degradation during anaerobic sludge digestion by ozone treated feed sludge. "Chemical Engineering Journal", 230, (2013), p.499-505.
  A.30 M. Muza, S. Ak, O.T. Komesli & C.F. Gokcay., Removal of endocrine disrupting compounds in a lab-scale anaerobic/aerobic sequencing batch reactor unit.. "Environmental Technology. DOI:10.1080/09593330.2013.861020", (2013), p.1-9.
  A.31 Melis Muz, M. Selcen Ak, Okan T Komesli & Celal F Gökçay, Intermittent Ozone Application in Aerobic Sludge Digestion. "Ozone: Science and Engineering. DOI: 10.1080/01919512.2013.824808", (2013).
  A.32 Ozkan-Yucel, Umay Gokce; Gokcay, Celal Ferdi, Effect of Anaerobic Azo Dye Reduction on Continuous Sludge Digestion. "CLEAN-SOIL AIR WATER", 42, (2014), p.1457-1463.
  A.33 Muz, M; Ak, S.; Komesli, OT.; Gokcay, CF., Intermittent Ozone Application in Aerobic Sludge Digestion. "OZONE-SCIENCE & ENGINEERING", 36, (2014), p.57-64.
  A.34 Muz, M.; Ak, S. ; Komesli, OT.; Gokcay, CF., Removal of endocrine disrupting compounds in a lab-scale anaerobic/aerobic sequencing batch reactor unit. "ENVIRONMENTAL TECHNOLOGY", 35, (2014), p.1055-1063.
  A.35 Komesli, Okan Tarik; Gokcay, Celal Ferdi, Investigation of sludge viscosity and its effects on the performance of a vacuum rotation membrane bioreactor. "ENVIRONMENTAL TECHNOLOGY", 35, (2014), p.645-652.
 

Conference Papers

  A.1 Katmer, P., Dilek, F.B. and Gökçay, C.F., Assessment of Toxicity and Biodegredability of Pulping Effluents by Electrolytic Respirometry. "9. Int. Sym. on Environ. Polln. & Its Impacts on Life in the Medit.", (1997), p.230.
  A.2 Demirbaş, G., Gökçay, C.F., Dilek, F.B. and Ataberk, Ş., Sequence of Microbial Populations Associated with the Treatment of Pulping Effluents in a Model Activated Sludge Plant. "9. Int. Sym. on Environ. Polln. & Its Impacts on Life in the Medit.", (1997), p.67.
  A.3 Demirbaş, D., Gökçay C.F. and Dilek, F.B., Treatment of Organic Chlorine in Pulping Effluents by Activated Sludge. "4th Int. Symposium on Waste Management Problems in Agro-Industries", 1, (1998), p.353-358.
  A.4 Dilek, F.B., Yetiş, Ü., Gökçay, C.F., Demirbaş, G. and Çürük, V., Waste Management Practice in a Beet-Sugar Factory. "4th Int. Symposium on Waste Management Problems in Agro-Industries", 1, (1998), p.447-452.
  A.5 Sürücü, G., Gökçay, C.F.,Yetiş, Ü., Dilek, F.B. and Arıcan, B., Treatability of Carpet Dyeing Wastewaters: A Case Study.. "10th Int. Sympos.um on Environment Pollution and Its Impact on Life in the Mediterranean Region", (1999), p.247.
  A.6 Taseli, B.K. and Gökçay, C.F., Biological Treatment of Paper Pulping Effluents by Using a Fungal Reactor. "The 6th IAWQ Symposium on Forest Industry Wastewaters", (1999), p.221-228.
  A.7 Gökçay, C.F. and Taşeli, B.K., Treatment of Organochlorine Compounds by Fungal Reactor. "Turkish-German Symposium on Recent Advances in Wastewater Treatment", 1, (2001), p.19-27.
  A.8 Gökçay, C.F., Biological Nutrient Removal from Wastewaters. "Turkish-German Symposium on Recent Advances in Wastewater Treatment", 1, (2001), p.106-117.
  A.9 Oğuz, Ö., Sürücü, G., Gökçay, C.F. and Yetiş, Ü., Assessment of Disaster Emergency Plans to Minimize Environmental Risk of Disasters. "EPMR-2002 International Conference on Environmental Problems of the Mediterranean Region", (2002).
  A.10 Torcu, E.C. and Gökçay, C.F., Modelling of Izmir Wastewater Treatment Plant. "EPMR-2002, International Conference on Environmental Problems of the Mediterranean Region", (2002), p.60.
  A.11 Celal F Gökçay, Gürkan Sin, Modeling of a Large Scale Wastewter Treatmnet Plant for Efficient Operation. . 4 September 2003, Praha, Check R. "IX. IWA Specialised Conference. Design, Operation, Economics of Large Wastewater Treatment Plants", (2003), p.pp. 193-200.
  A.12 Celal F Gokcay, Evaluation of Turkish Reuse Standards and the Compliance Status. "International Workshop on Implementation and Operation of Municipal Wastewater Reuse Plants.", Proc. CD, (2004).
  A.13 U. G. Özkan Yücel and Celal F Gökçay, Modeling a full-scale anaerobic digester. "Anaerobic Digestion 2004, 10th World Congress-Montreal, Canada", 2, (2004), p.749-754.
  A.14 I. Imamoglu, S. Girgin, F.D. Sanin, F.B. Dilek, U. Yetis, H. Yukseler, C.F. Gokc, Determination of the prevailed effluent disposal methods and their impacts with emphasis on wastewater reuse in agricultural production in Turkey. "International Workshop on Implementation and Operation of Municipal Wastewater Reuse Plants", Proc. CD, (2004).
  A.15 Aysegul Aksoy1, Celal F. Gokcay, Erkan Sahinkaya, Kahraman Unlu, and Gulerman Su, Best Practice Examples for Reuse of Wastewaters in Agricultural Irrigation in the World. "International Workshop on Implementation and Operation of Municipal Wastewater Reuse Plants.", Proc. CD, (2004).
  A.16 Devrim Kaya, Filiz Dilek and Celal F Gokcay, Removal of Algae with trickling filters. "1st ZEO-M Conference on Sustainable Water Management - Conference proceedings", (2005), p.59-62.
  A.17 Hakan Moral,. Ayşegül Aksoy A. and Celal F Gokcay, Activated sludge process modeling: A black box approach. "Water Rational Recycling and Reuse Conference", (2006).
  A.18 Okan T.Komesli and Celal F Gokcay, Vacuum membrane applications in domestic wastewater reuse. "Water Rational Recycling and Reuse Conference", (2006).
  A.19 Devrim Kaya. Filiz, Dilek. and Celal F Gokcay, Reuse of lagoon effluents in agriculture by post treatment in a step feed dual treatment (STFD) process. "Water Rational Recycling and Reuse Conference", (2006).
  A.20 U.G. Ozkan Yucel and C F Gokcay., Co-treatment of reactive azo-dye with sewage sludge. "Facing sludge diversities:Challanges, Risks and Opportunties. -IWA Conference", (2007), p.165-175.
  A.21 O.T. Komesli, Z. Gürkan and C F Gokcay., Sludgde characteristic of a vacuum rotation membrane bioreactor (MBR)., 28-30 March 2007-Antalya. Proceedings Book pp. 747-755 . "Facing sludge diversities:Challanges, Risks and Opportunties. -IWA Conference", (2007), p.747-755.
  A.22 Celal F Gokcay., Wastewater Potential and Reuse Standards in Turkey.. " 6th Conference on Wastewater Reclamation and Reuse for Sustainability October 9-12, 2007 Antwerp, B", (2007), p.67.
  A.23 M. S. Ak, M. Muz, O. T. Komesli, C. F.i Gokcay, MINIMIZING MBR SLUDGES BY PULSE OZONATION. "Sustainable Solid Waste Management - Athens 2012 June 28-29, 2012", Prosc. CD, (2012).
  A.24 M. S. Ak, M. Muz, O. T. Komesli, C. F.i Gokcay, TREATMENT OF XENOBIOTICS DURING ANAEROBIC DIGESTION AND ITS ENHANCEMENT UPON POST-OZONATION OF THE ANAEROBICALLY TREATED SLUDGE. "Sustainable Solid Waste Management - Athens 2012 June 28-29, 2012", Prosc. CD, (2012).
  A.25 , Gokhan Hadi; Umudum, Haldun; Komesli, Okan Tarik; Celal F Gokcay, INFLUENCE OF ENDOCRINE DISRUPTORS IN WATER ON ANDROGENITAL SYSTEMS OF RATS. "JOURNAL OF UROLOGY , Meeting Abstract: 1025", 189, (2013), p. Pages: E420.
  A.26 S.M. Ak, M. Muz, C.F. Gokcay , O.T.Komesli, Prolonged Reuse of Domestic Wastewater after Membrane Bioreactor Treatment.. "6th International Perspective on Water Resources and the Environment-ASCE, January 7-9, 2013. İzmir", (2013).
  A.27 O.T.Komesli, M. Muz, C.F. Gokcay, S.M. Ak., Endocrine Disrupting Compounds, EDCs, Observed in Turkish Domestic Effluents and Their Treatability in Wastewater Treatment Plants.. " 6th International Perspective on Water Resources and the Environment-ASCE, January 7-9, 2013. İzmir", (2013).
  A.28 O.T.Komesli, M. Muz, C.F. Gokcay, S.M. Ak., Treatment of Xenobiotics During Anaerobic Degradation and It's Enhancement upon Post-ozonation of the Anaerobically Treated Sludge:. "6th International Perspective on Water Resources and the Environment-ASCE, January 7-9, 2013. İzmir", (2013).
  A.29 Okan Tark Komesli, Melis Muz , Selcen Ak, Celal Ferdi Gökçay., PROLONGED REUSE OF DOMESTIC WASTEWATER AFTER MEMBRANE BIOREACTOR TREATMENT. "Win4life Conference, 19-21 September, 2013, Tinos Island, Greece", (2013).

Publications (NATIONAL)

 

Journal Papers

  A.1 Yetiş, Ü., Gökçay, C.F., Ataberk, Ş. ve Şahin, Ş., Klordioksit Beyazlatma Atıksularının Karakterizasyonu Moleküler Ağırlık Dağılımı. "Su Kirliliği Kontrol Dergisi", 7, (1997), s.37-47.
  A.2 Melis Muz, Selcen Sönmez, Okan T. Komesli, Celal F Gökçay, Kesikli Ozonlama yöntemi ile atık çamur azaltımı.. "Itü dergisi/Su kirlenmesi kontrolu", 20, (2010), s.77-84.
 

Conference Papers

  A.1 Sin, G. and Gökçay, C.F., Evsel Atıksuların İleri Karakterizasyonu ve Biyokinetik Parametrelerin Belirlenmesi: Ankara Merkezi Atıksu Arıtma Tesisi Örneği. "3. Ulusal Çevre Mühendisliği Kongresi", (1999), s.SİN1-14.
  A.2 Sin, G. and Gökçay, C.F., Aktif Çamur Sistemlerinin Modellenmesinde Atıksuların İleri Karakterizasyonu ve Kinetik Parametrelerin Belirlenmesi. "1. Ulusal Çevre Kirliliği Kontrolü Sempozyumu", 1, (2000), s.342-345.
  A.3 Sin, G. and Gökçay, C.F., Evsel Atıksuların İleri Karakterizasyonu ve Biyokinetik Parametrelerin Belirlenmesi. "3. Ulusal Çevre Mühendisliği Kongresi", 1, (2000), s.SIN 1-SIN 14.
  A.4 Varolan, N. Gökçay, C.F. and Demirer, G.N., Viski Üretim Endüstrisi Atıksuyunun Ardaşık (Anaerobik/Aerobik) Biyolojik Yöntemlerle Arıtılması. "IV. Çevre Mühendisliği Kongresi", 1, (2001), s.443-451.
  A.5 Sin, G. and Gökçay, C.F., Yüksek Verimlilikle İşletim için Büyük Boyutlu Atıksu Arıtma Tesislerinin Modellenmesi. "IV. Çevre Mühendisliği Kongresi", 1, (2001), s.137-149.
  A.6 Umay Özkan ve Celal F Gökçay, Tam ölçekli beir çamur çürütücünün ADM1 ile modellenmesi. "1. Ulusal Arıtma Çamurları Sempozyumu-AÇS2005", 1, (2005), s.147-153.
  A.7 Celal F Gökçay, Control of Water borne diseases originating from water resources and distrubition systems. "XXXII. Turkish Microbiology Congress", (2006), s.60-72.
  A.8 C. Yiğit, G. Maden, N. Dişa, O. Yılmaz, E. Alp, K. Unlu, C.F.Gokcay ....., Comparison between EU and Turkish Legislation on Hazardous Waste Management- Reporting Requirements. "ULE 2009, International Workshop on Urbanization, Land Use, Land degradation and Environment", Proc., (2009).
  A.9 M. Muz, M. S. Sonmez, O. T. Komesli, S. Bakırdere and C. F. Gokcay, Atıksu arıtma tesislerinden alınan su örneklerinde doğal hormanların ve endokrin bozucu maddelerin katı faz ekstraksiyonundan sonra LC-ESI-MS/MS sistemi ile eşzamanlı tayinleri.. "VI. Uluısal Analitik Kimya Kongresi", (2012), s.23.
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