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Συμμετοχές σε Συνέδρια

Conferences Participations

  1. P. Gikas, 2021, "International Trends for Water Reuse and Potential for Greece", 2nd International Water Forum, 22-23 September, Heraklion, Greece.
  2. A. Manali, N. Mavrakis and P. Gikas, 2021, “Environmental Impact Assessment for an integrated microsieving-drying-gasification pilot plant for biosolids to electric energy, in Rethymno, Greece”, 8th International Conference on Sustainable Solid Waste Management, 23-25 June, Thessaloniki, Greece.
  3. A. Manali, N. Mavrakis and P. Gikas, 2020, “Environmental Impact Assessment for a biosolids gasification pilot plant in Rethymno, Greece”, 6th International Symposium on Green Chemistry, Sustainable Development and Circular Economy, 20-23 September, Thessaloniki, Greece.
  4. I.G. Priede, R.W. Burgass, M. Mandalakis, A. Spyros, P. Gikas, F. Burns and J. Drewery, 2020, “Floating in the deep: The effects of pressure and temperature on buoyancy of liver oils of deep-sea sharks and chimaeras”, Online Conference - Deep Sea Biology Society (eDSBS2020), 19-21 August.
  5. A. Manali and P. Gikas, 2020, “New concept for energy self-sustainable wastewater treatment process and biosolids management”, LIFE Waste-Water Treatment Platform Meeting: Making Water Fit for LIFE 29-30th January 2020, Barcelona, Spain.
  6. P. Gikas, 2019, “Towards Energy Positive Wastewater Treatment Plants”, 3rd International Symposium: Environmental Processes Engineering and Technologies, 8 November, Stuttgart, Germany.
  7. A. Manali and P. Gikas, 2019, “Gasification of primary sieved solids for the production of electric energy”, 5th Conference: Administrative Region Environmental Impact of Pollutants Assessment, Clearance and Treatment, 21-22 October, Yerevan, Armenia.
  8. A. Manali and P. Gikas, 2019, “Utilization of primary sieved solids for gasification and energy production”, 17th International Waste Management and Landfill Symposium, 30 September - 4 October, Cagliari, Sardinia, Italy.
  9. P. Gikas, 2019, “Water Reuse in Hydroponic Cultivation of Tomato Plants”, Symposium: Use of Waste Water in Agriculture: Pros and Cons, 27 August, Faisalabad, Pakistan.
  10. P.M. Marumoloa, P.T. Odirile, N.I. Batistatos , K. Vardas and P. Gikas, 2019, “Comparative assessment of microsieve and primary clarifier biosolids for generation of biogas”, WEF-EESS Conference on Advancement in Water and Wastewater Treatment and Reuse (AWWTR 2019), 31 July - 1 August, Singapore.
  11. A. Manali and P. Gikas, 2019, “Thermal and electric energy production using primary sieved solids from municipal wastewater, asgasification feedstock”, 5th distance education e-learning International Summer School and Workshop on “Wastewater and Biosolids Management” (WWSS19), 22-27 July, Patras, Greece.
  12. K. Vardas, N.I. Batistatos, P. Gikas, 2019, “Dry stage anaerobic digestion of fine sieved solids from municipal wastewater”, 7th International Conference on Sustainable Solid Waste Management, 26-29 June, Heraklion, Greece.
  13. P. L. Moraiti, A. Manali, P. Gikas, 2019, “Removal of ammoniacal nitrogen from landfill leachate by adsorption on activated zeolite”, 7th International Conference on Sustainable Solid Waste Management, 26-29 June, Heraklion, Greece.
  14. G. Makaroglou, E. Syranidou, K. Pantelidaki, N. Kalogerakis and P. Gikas, 2019, “Chemical mutation of Stichococcus sp. for the selection of strains with reduced chlorophyll content”, 2nd International Conference ADAPTtoCLIMATE, 24-25 June, Heraklion, Greece.
  15. P. Gikas, 2019, “Waterless flush toilets: A solution for sanitation services in isolated beaches of the Greek Islands”, Faecal Sludge Management Conference (FSM5), 18-23 February, Cape Town, South Africa.
  16. P. Gikas, 2019, “Wastewater management in light of the circular economy principles” Conference: The application of the Cyclical Economy to Agriculture and Livestock Raising (AgroCIRCLE), 31 January - 1 February, Thessaloniki, Greece.
  17. P. Toursidis and P. Gikas, 2018, “Disinfection of hydroponic cultivations effluent using continuous uv radiation systems”, 1st International Potable Water And Waste Water Symposium, 6-7 December, Afyonkarahisar, Turkey.
  18. P. Gikas and A. Manali, 2018, “Electric energy production from primary sieved solids through gasification”, 6th International Conference on Recycling and Waste Management, 3-4 December, Dubai, UAE.
  19. P. Gikas, 2018, “Energy exploitation of solid waste and biosolids by the gasification process”, Workshop: The National Solid Waste Management Plan (KEDE), 24-25 October, Mystras, Lakonia, Greece (in Greek).
  20. P. Gikas, 2018, “Near zero energy wastewater treatment plants for the islands”, Conference: Challenges for the Islands in the Era of the Circular Economy (CIrCLE2018), 20-22 September, Chania, Greece.
  21. P. Gikas, 2018, “The contribution of water reuse to the circular economy”, 3rd Amari Green Festival, 2-25 July, Amari, Rethymno, Greece (in Greek).
  22. A. Manali and P. Gikas, 2018, “Mass and energy balances for gasification of primary sieved solids” 5th International Conference on Small and Decentralised Water and Wastewater Treatment Plants (SWAT5), 26-29 August, Thessaloniki, Greece.
  23. P. Gikas and S. Argyropoulos, 2018, “Treatment of cheese whey wastewater by the active clay sediments process” 14th International Conference on Protection and Restoration of the Environment, 3-6 July, Thessaloniki, Greece.
  24. P. Gikas, 2018, “Removal of biosolids from sewage using microsieves”, Workshop: Water 2018: Life-Science-Technology, HWA-CWA, 28-29 June, Athens, Greece (in Greek).
  25. V.A. Axaopoulou, H. Marakas, N. Kalogerakis and P. Gikas, 2018, “Production of lipids from immobilized microalgae (Stichococcus sp.) growing on winery wastewater”, 7th European Bioremediation Conference-EBC, 25-28 June, Chania, Greece.
  26. E. Ranieri, A.C. Ranieri, P. Gikas and K. Moustakas, 2018, “Solid recovered fuel production from municipal solid waste: a tourist area plant case study”, 6th International Conference on Sustainable Solid Waste Management, 13-16 June, Naxos, Greece.
  27. P. Gikas and S. Argyropoulos, 2018, “Pacification of Fly Ash by the Geochemical Active Clay Sediments Processing”, 6th International Conference on Sustainable Solid Waste Management, 13-16 June, Naxos, Greece.
  28. T. Geronymakis and P. Gikas, 2018, “Remediation of high ammonia strength wastewaters with parallel production of vegetal biomass”, International Congress on Water, Environment and Climate Change, 10-12 April, Kathmandu, Nepal.
  29. P. Gikas, 2018, “Biogas production from municipal solid waste”, Conference: Regional Solid Waste Management Planning-Towards a Circle Economy, 30 March, Heraklion, Greece (in Greek).
  30. I. Chourdakis and P. Gikas, 2017, “Municipal wastewater treatment by trickling filtration: The effect of feeding pattern”, 1st International Symposium: Industrial Environmental Technology Development, 24 November, Stuttgart, Germany.
  31. P. Gikas, 2017, “Water Reuse for Municipal and Agricultural Applications: Challenges and Potential”. Workshop: Sustainability and Growth Prospects in the Primary Sector, 22 November, Moudania, Greece (in Greek).
  32. P. Gikas, 2017, “Experience with the use of microsieves for wastewater treatment and their potential for application in small settlements”, Workshop: Wastewater Management in Small Settlements, 5-6 October, Rethymno, Greece (in Greek).
  33. A. Papadakis, D. Chochlakis, E. Yachnakis, M. Keramarou, V. Sandalakis, Y. Tselentis, P. Gikas and A. Psaroulaki, 2017, “Climatic conditions as risk factors for the colonization of hotel water systems by legionella species: Preliminary results of a 12-year study in Crete, Greece”, 9th International Conference on Legionella: 26-30 September, Rome, Italy.
  34. A. Papadakis, D. Chochlakis, M. Keramarou, V. Sandalakis, Y. Tselentis, P. Gikas and A. Psaroulaki, 2017, “Risk factors of legionella growth in water systems: 29-year epidemiological study in Crete, Greece”, 9th International Conference on Legionella: 26-30 September, Rome, Italy.
  35. I. Palogos, I. Chourdakis, K. Tsafantakis and P. Gikas, 2017, “Simulation of landfill gas production rate and methane concentration: Modelling and verification through field measurements”, International Conference on Environment and Natural Science (ICENS), 20-21 July, Los Angeles, USA.
  36. P. Gikas and S. Argyropoulos, 2017, “Treatment of fish processing wastewater by the active clay sediments process”, 6th International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2017), 25-30 June, Thessaloniki, Greece.
  37. P. Gikas, H. Leverenz and G. Tchobanoglous, 2017, “Decentralized wastewater engineering in metropolitan areas”, 6th International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2017), 25-30 June, Thessaloniki, Greece.
  38. N.-I. Batistatos and P. Gikas, 2017, “Use of microsieves for primary wastewater treatment. Industrial scale application at the municipal wastewater treatment plant of Rethymnon, Greece”, 6th International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2017), 25-30 June, Thessaloniki, Greece.
  39. A. Papadakis, D. Chochlakis, V. Sandalakis, A. Psaroulaki and P. Gikas, 2017, “Investigation of the potential for additional loading with treated wastewater of the Karteros torrent, Heraklion, Crete, Greece”, National Conference: Environmental Responsibility Prevention and Rehabilitation-Challenges and Opportunities for the Protection of Biodiversity in Greece, 8-10 September, Heraklion, Greece (In Greek).
  40. P. Gikas and S. Argyropoulos, 2017, “Landfill Leachate Treatment by the Active Clay Sediments Process”, 5th International Conference on Sustainable Solid Waste Management, 21-24 June, Athens, Greece.
  41. T. Geronymakis, P. Toursidis, M., Farazaki, H. Marakas and P. Gikas, 2017, “Potential for Recovery of Recyclables from the Mixed Municipal Solid Waste of the Municipality of Lesvos, Greece”, 5th International Conference on Sustainable Solid Waste Management, 21-24 June, Athens, Greece.
  42. A. Papadakis, D. Chochlakis, M. Keramarou, V. Sandalakis, Y. Tselentis, P. Gikas and A. Psaroulaki, 2017, “Colonization of Legionella Species in Recreational Water Systems in Crete: A 28 Year Surveillance Study”, Swimming Pool & Spa 7th International Conference, 2-5 May, Cos Island, Greece.
  43. P. Gikas, 2017, “Energy Positive Wastewater Treatment Plants”, International Symposium on Effective Wastewater Treatment, 31 March, Faisalabad, Pakistan.
  44. P. Gikas and M. Farazaki, 2017, “Recording and Evaluation of the Point Sources Pollution at the Aegean Islands”, Workshop: Monitoring Technologies for the Protection of the Environment: An Interdisciplinary Approach, 13 January, Chania, Greece (In Greek).
  45. E. Kypriotakis, I. Chourdakis, H. Marakas and P. Gikas, 2016, “Trickling Filtration of Primary Effluent: The Effect of Type of Support Media”, International Conference on Water: From Pollution to Purification (ICW2016), 12-15 December, Kottayam, Kerala, India.
  46. I. Chourdakis, H. Marakas and P. Gikas, 2016, “Efficient Municipal Wastewater Treatment by Once-Trough Trickling Filtration”, 13th International Conference on Protection and Restoration of the Environment, 3-6 July, Mykonos, Greece.
  47. M. Farazaki, H. Marakas, M. Kostopoulou, D. Kitsiou and P. Gikas, 2016, “Estimation of Point and Diffuse Pollution Sources in the Aegean Islands”, 2nd International Conference on Efficient & Sustainable Water Systems towards Worth Living Development (EWaS2), 1-4 June, Chania, Greece.
  48. V. Manasaki, I. Palogos, K. Tsafantakis and P. Gikas, 2016, “Techno-Economic Evaluation for Energy Production from the Landfill in Heraklion, Greece”, 4th International Conference on Sustainable Solid Waste Management, 23-25 June, Limassol, Cyprus.
  49. M. Farazaki, H. Marakas and P. Gikas, 2016, “Nitrification-Denitrification of Raw Municipal Wastewater without Recirculation, Using Encapsulated Microbial Systems”, 13th IWA Specialized Conference on Small Water and Wastewater Systems, 14-17 September, Athens, Greece.
  50. P. Gikas, E. Ranieri, D. Sougioultzis, M. Farazaki, H. Marakas and G. Tchobanoglous, 2016, “Alternative Sewers for Decentralized Wastewater Treatment Systems: State of the Art and Application at Eretria Town, Greece”, 13th IWA Specialized Conference on Small Water and Wastewater Systems, 14-17 September, Athens, Greece.
  51. P. Gikas, 2016, “Treatment of Edible-Olives Industries Wastewater by the Active Clay Sediments System”, 13th IWA Specialized Conference on Small Water and Wastewater Systems, 14-17 September, Athens, Greece.
  52. E. Kypriotakis, H. Marakas and P. Gikas, 2016, “The effect of recirculation and aeration on the performance of trickling filtration”, International Conference on Advances in Energy and Environment Research (ICAEER 2016), 12-14 August, Guangzhou, China.
  53. N. Nikolopoulou and P. Gikas, 2016, “Potential for Water Reuse from Wastewater Treatment Plants Treating High Salinity Sewage: The Case of Nafplion-Argos Wastewater Treatment Plant” 2nd National Conference: Economics of Natural Resources and Environment - Climate Change, ENVECON 2016, 4-5 November, Volos, Greece.
  54. P. Gikas, 2016, “Municipal Wastewater Treatment Process Suitable for Arctic and Alpine Environments”, International Conference: Sanitation in Cold Climate Regions (ARTEK Event 2916), 12-14 April, Sisimiut, Greenland.
  55. P. Gikas, M. Elhag, I. Manakos, Z. Petrou, M. Farazaki and I. Chourdakis, 2015, “Sensitivity Analysis Considerations of Surface Energy Balance System (SEBS) Input Parameters Used for the Estimation of Daily Evapotranspiration”, International Geographic Union Conference, 17-21 August, Moscow, Russia.
  56. P. Gikas, M. Farazaki, I. Chourdakis and A. Emdadi, 2015, “Potential for Energy Production due to Salinity Gradient”, MIAR2015 Conference, 29-30 July, Almaty, Kazakhstan.
  57. P. Gikas, E. Ventafrintas and M. Farazaki, 2015, “Potential for gasification and electric energy production from biosolids”, 3rd International Conference on Sustainable Solid Waste Management, 2-4 July, Tinos, Greece.
  58. M. Farazaki, H. Marakas and P. Gikas, 2015, “Nitrification - denitrification of wastewater without recirculation, using encapsulated microorganisms”, 29 June - 2 July, 6th European Bioremediation Conference-EBC, Chania, Greece.
  59. P. Gikas, 2015, “Potential for water reuse in small housing estates”, Workshop on: Sustainable Wastewater Management, 26 June, Agia, Larissa, Greece.
  60. P. Gikas, 2015, “Potential for energy production for municipal solid waste by anaerobic digestion in insular areas”, 1st Conference on Recycling in Insular Areas, 22-23 May, Santorini, Greece (in Greek).
  61. P. Gikas, 2015, “Towards energy sustainable wastewater treatment plants”, International conference on Industrial Waste and Wastewater Treatment and Valorisation (IWWATV), 21-23 May, Athens, Greece.
  62. P. Gikas and E. Vaiopoulou, 2015, “Chromium Discharge Limits in Europe”, 3rd International Conference on Detection, Control and Processing of Anthropogenic Pollutants, 25-26 October, Yerevan, Armenia.
  63. C. Sifaki, M. Farazaki and P. Gikas, 2015, “Potential for energy production from olive oil mill wastewater and cheese whey wastewater using anaerobic digestion in the Region of Chania, Greece”, IWA Young Balkan Water Professionals Conference, 10-12 May, Thessaloniki, Greece.
  64. P. Gikas, 2015, “Potential for the Valorization of Organic Waste at Hotel Resorts for Heating and Cooling”, Workshop: Highlighting the Role of Large Waste Producers to Recycling, 9 November, Georgioupolis, Chania, Greece (In Greek).
  65. P. Gikas, M. Farazaki and H. Maracas, 2015, “Point Sources Pollution at the Aegean Islands: Present Situation and Future Contemplation”, 3rd Conference on Integrated Waster Resources Management at the New Era, 10-12 December, Athens, Greece.
  66. P. Gikas, 2014, “Energy Management in Wastewater Treatment Plants: Current Status and Envision towards Energy Autonomous Plants”, 26th Annual meeting of EDEYA, 20-21 November, 2014, Rethymno, Greece.
  67. V. Zarikas and P. Gikas, 2014, “Statistical Inferences Concerning Advanced Upfront Solids Removal from Municipal Wastewaters”, 1st National Conference: Economics of Natural Resources and Environment - Climate Change, ENVECON 2014, 31 October-1November, Volos, Greece
  68. M. Farazaki, I. Mertaraki and P. Gikas, 2014, “Potential for Electric Energy Production from MSW By-Products and Biosolids Using Thermal Processes in Chania Region, Greece”, 4th International Conference on Hazardous and Industrial Waste Management, 2-5 September, Chania, Greece.
  69. V. Manasaki and P. Gikas, 2014, “Landfill Gas to Electric Energy: Pros and Cons of Available Technologies”, International Solid Waste Association (ISWA) World Congress, 8-11 September, Sao Paulo, Brazil.
  70. P. Gikas and K. Stedman, 2014, “Valorisation of Peruvian Fisheries Wastewater with Parallel Environmental Pollution Prevention”, 5th International Conference on Engineering for Waste and Biomass Valorisation (WasteEng2014), 25-28 August, Rio de Janeiro, Brazil.
  71. A. Zournas, M. Farazaki, H. Marakas and P. Gikas, 2014, “Nitrification of Low Ammonia Strength Wastewaters Using Encapsulated Nitrifying Microorganisms”, 12th International Conference on Protection and Restoration of the Environment, 29 June – 3 July, Skiathos, Greece.
  72. P. Gikas, 2014, “Gasification of Municipal Wastewater Primary Sieved Solids in a Rotary Drum Reactor”, 2nd International Conference on Sustainable Solid Waste Management, 12-14 June, Athens, Greece.
  73. A. Samiotakis, Y. Palogos, Y. Christodoulakos, A. N. Angelakis and  P. Gikas,  2014, “Engineering Aspects of the Aqueduct in Roman Minoa, Akrotiri, Chania, Hellas”, IWA Regional Symposium on Water, Wastewater and Environment: Traditions and Cultures, 22-24 March, Patras, Greece.
  74. P. Gikas, L.G. Papageorgiou, F. Konstantopoulou and S. Liu, 2013, “Optimal Planning of Water and Wastewater Management Infrastructure for Insular Areas: The Role of Water Reuse”, 9th IWA Conference on Water Reuse, 27-31 October, Windhoek, Namibia.
  75. G. Koliopoulos and P. Gikas, 2013, “Fine Mesh Sieving of Raw Municipal Wastewater for TSS and COD removal”, 13th International Conference on Environmental Science and Technology, 5-7 September, Athens, Greece.
  76. P. Gikas and T. Tsoutsos, 2013, “Near Zero Energy Wastewater Treatment Plants for the Greek Islands” International Conference “Water Is Necessary for Life – WIN4Life”, 19-21 September, Tinos, Greece.
  77. P. Gikas and K. Stedman, 2013, “Novel Wastewater Treatment Configuration for Zero Energy Requirements Wastewater Treatment Plants”, 3rd Asian Conference on Sustainability, Energy and the Environment (ACSEE2013), 6-9 June, Osaka, Japan.
  78. E. Ranieri, A. Gorgoglione, C. Montanaro, A. Iacovelli and P. Gikas, 2013, “Hydraulic Behaviour in a Pilot-Scale Horizontal Subsurface Flow Constructed Wetlands”, 4th Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2013), 24-27 June, Mykonos, Greece.
  79. P. Gikas, 2013, “Wastewater Treatment Plants as Net Energy Production Factories”, International Conference on Environmental and Hazardous Substance Management towards a Green Economy (EHSM 2013), 21-23 May, Bangkok, Thailand.
  80. P. Gikas, 2013, “Gasification of MSW for Electric Energy Production”, Workshop on MSW Management Practices, Regional Association of Municipalities of Central Macedonia, 26 April, Thessaloniki, Greece.
  81. S. Liu, P. Gikas and L.G. Papageorgiou, 2013, "A Mathematical Programming Approach for the Utilisation of Non-Conventional Water Resources", ChemEngDayUK 2013, 25–26 March, London, UK.
  82. P. Gikas, 2013, “Upfront Solids Removal in Municipal Wastewater Treatment Applications”, WaterTech Asia 2013, 22-24 January, Bangkok, Thailand.
  83. P. Gikas and K. Stedman, 2013, “Enhanced Upfront Solids Removal for Improved Effluent Quality and Reduced Energy Requirements in Municipal Wastewater Treatment Applications”, 2nd International Conference on Water Research, 20-23 January, Singapore.
  84. P. Gikas, 2012, "Power Generation from MSW and Biosolids through the Gasification Process", 7th “ENERTECH ’12” International Conference, 1-3 November, Athens, Greece.
  85. P. Gikas and S.A. Noll, 2012, "Electrical Energy Production from Biosolids: A Comparative Study Between Anaerobic Digestion and Gasification", 3rd International Conference on Hazardous and Industrial Waste Management, 12-14 September, Chania, Greece.
  86. A. Iacovelli, E. Ranieri and P. Gikas, 2012, "A Common Strategy for Municipal Wastewater Effluent Reuse in Apulia, South Italy and Greece", SIDISA 2012 – Sustainable Technology for Environmental Protection, 26-29 June, Milan, Italy.
  87. F. Konstantopoulou, S. Liu, L.G. Papageorgiou and P. Gikas, 2012, "The Utilization of Non Conventional Water Resources to Subsidize Insufficient Water Balances: Case Study for Santorini Island, Greece", 5th Engineering Conference, 10-12 July, Kuching, Malaysia.
  88. E. Kornelaki, P. Gikas, S. Liu and L.G. Papageorgiou, 2012, "Potential for Municipal Water Reuse at the Municipality of Kasteli, Crete, Greece", 11th International Conference: Protection and Restoration of the Environment, 3-6 July, Thessaloniki, Greece.
  89. S. Liu, P. Gikas and L.G. Papageorgiou, 2012, "A Two-Step Optimisation Approach for Integrated Water Resources Management", 22nd European Symposium on Computer Aided Process Engineering - ESCAPE22, 17-20 June 2012, London, UK.
  90. S. Liu, P. Gikas and L.G. Papageorgiou, 2012, "MILP-Based Approaches for Integrated Management of Sustainable Water", 9th International Conference on Computational Management Science Resources, 18-20 April, London, UK.
  91. S.A. Noll and P. Gikas, 2012, "Comparison of Energy Yield Between Anaerobic Digestion and Ultra-High Temperature Gasification of Biosolids", IWA Regional Conference on Wastewater Purification & Reuse, 28-30 March, Heraklion, Greece.
  92. A. Franchi, K. Stedman and P. Gikas, 2012, "Enhanced Primary Solids Removal from Municipal Wastewater by Two Steps Filtration", IWA Regional Conference on Wastewater Purification & Reuse, 28-30 March, Heraklion, Greece.
  93. Y. Gorokhovich, A. Alexopoulos, V. Gikas, P. Gikas and A.N. Angelakis, 2012, "Water Supply and Use in the Roman City of Aptera, Crete, Hellas: the Mystery of the Ancient Water System", IWA Specialized Conference on Water&Wastewater Technologies in Ancient Civilizations, 22-24 March, Istanbul, Turkey.
  94. P. Gikas, S.A. Noll and K. Stedman, "Gasification of Primary Fine Screenings for Energy Production", 2011, 1st Eurasia Waste Management Symposium, 14-16 November, Istanbul, Turkey.
  95. S.S. Sengor, P. Gikas, J.G. Moberly, B. Peyton, T.R. Ginn, 2011, "The Influence of Single and Combined Effects of Zn, Cu and Temperature on Microbial Growth", 5th European Bioremediation Conference, 4-7 July 2011, Chania, Greece.
  96. E. Ranieri and P. Gikas, 2011, "Constructed Wetlands for Metals Removal in South Italy", 5th European Bioremediation Conference, 4-7 July 2011, Chania, Greece.
  97. D. Pothoulaki, and P. Gikas, 2011, "Advantages of Anammox Process for Ammonia Removal from High Ammonia Content Effluents", 5th European Bioremediation Conference, 4-7 July 2011, Chania, Greece.
  98. E. Vaiopoulou and P. Gikas, 2011, "The Effects of Chromium on the Performance of Wastewater Treatment Plants", CEMEPE/SECOTOX conference, 19-23 June 2011, Skiathos, Greece.
  99. P. Gikas, E. Ranieri and G. Tchobanoglous, "BTEX Removal in Pilot Scale Constructed Wetlands", CEMEPE/SECOTOX conference, 19-23 June 2011, Skiathos, Greece.
  100. P. Gikas, 2011, "Ammonia removal from low ammonia content wastewaters by anammox microorganisms", CEMEPE/SECOTOX conference, 19-23 June 2011, Skiathos, Greece.
  101. G. Tchobanoglous, H. Leverenz and  P. Gikas, 2011, "Decentralized Water and Wastewater Management Systems in the 21st Century", Workshop on Decentralized Wastewater Treatment Systems and Water Reuse Possibilities, 17 May 2011, Volos, Greece.
  102. P. Gikas, 2011, "Ultra-compact Wastewater Treatment Systems", Workshop on Decentralized Wastewater Treatment Systems and Water Reuse Possibilities, 17 May 2011, Volos, Greece.
  103. F. Konstantopoulou, S. Liu, P. Gikas, and L.G. Papageorgiou, 2010, "Water Resources Management for Paros Island, Greece", International Conference on Energy, Water & Environment (IASKS), 12-15 December, Amman, Jordan.
  104. P. Gikas, S.A. Noll, K. Stedman and G. Tchobanoglous, 2010, "The Characterization and Testing of Wastewater Fine Screen Fresh Solids for Suitability as a Gasification Feedstock", 2nd International Conference on Hazardous and Industrial Waste Management, 5-8 October 2010, Chania, Greece.
  105. E. Chatzisymeon, P. Gikas and D. Mantzavinos, 2010, "Economic Aspects of Advanced Oxidation Processes for Olive Mill Wastewater Treatment", 10th International Conference: Protection and Restoration of the Environment, PRE10, 25-9 July, 2010, Corfu, Greece.
  106. V. Daskalaki, C. Marakas, D. Mantzavinos, A. Katsaounis, and P. Gikas, 2010, "Use of Seawater for Electrolytic Treatment of Ethanol Distillation Byproducts", 10th International Conference: Protection and Restoration of the Environment, PRE10, 5-9 July, 2010, Corfu, Greece.
  107. E. Kornelaki, S. Liu, P. Gikas, and L.G. Papageorgiou, 2010, "Potential for Water Reclamation and Reuse at the Municipality of Kasteli", ORBIT 2010, Workshop on Wastewater Reuse, 2 July, Heraklion, Greece.
  108. P. Gikas, 2010, "Sustainable of Water Resources Management, Methodologies and Case Studies from Around the World", Workshop on Sustainable management in the Aegean Islands, 19 June, Syros, Greece (In Greek).
  109. S. Liu, P. Gikas, and L.G. Papageorgiou, 2010, "An Optimisation-based Approach for Integrated Water Resources Management", 20th European Symposium on Computer Aided Process Engineering – ESCAPE20, 6-9 June, Naples, Italy.
  110. P. Gikas, H. El Mashad αnd R. Zhang, 2010, "Biogas Production from Autoclaved and Rotary Drum Reactor-Treated Municipal Solid Wastes", 3rd International Conference on Engineering for Waste Valorisation, 16-19 May, Beijing, China.
  111. S.S. Sengor,  P. Gikas, J. Moberly, B. Peyton and T.R. Ginn, 2009, "Comparison of Heavy Metal Toxicity to Artrobactersp. in Continuous Flow and Batch Reactors", 2009 Fall Meeting of American Geophysical Union (AGU), 14-18 December, San Francisco, USA. Paper No.: B23E-0423.
  112. P. Gikas, 2009, "Wastewater Treatment and Water Reclamation Systems Appropriate for Insular Regions", Conference on "Decentralized wastewater management and Water Reuse", Hellenic Union of Municipal Enterprises for Water Supply and Sewerage, 5-6 November, Rethymnon, Greece. (In Greek).
  113. P. Gikas, 2009, "Water reclamation and Reuse in Insular Areas", Workshop: "Traditional Water Recourses Management and Sustainable Perspectives", 11 November, Amorgos, Greece. (In Greek).
  114. G. Tchobanoglous, H. Leverenz and  P. Gikas, 2009, "Impacts of New Concepts and Technology on the Energy Sustainability of Wastewater Management", 3rd Greek Conference on "Climate Change, Sustainable Development and Renewable Energy Sources", Thessaloniki, 15-17 October, Thessaloniki, Greece.
  115. P. Gikas, B. Zhu and R. Zhang, 2009, "Biogas Production from Municipal Solid Waste, Pretreated with Rotary Drum Reactor", 3rd Greek Conference on "Climate Change, Sustainable Development and Renewable Energy Sources", Thessaloniki, 15-17 October, Thessaloniki, Greece. (In Greek).
  116. P. Gikas, 2009, "Water Reuse Potential in Greece", Workshop on Water Resources Management, 16 May, Paros, Greece. (In Greek).
  117. P. Gikas, S. Liu and L.G. Papageorgiou, 2009, "Integrated Management of desalinated and reclaimed water in water deficient islands", 7th IWA World Congress on Water Reclamation and Reuse (REUSE09), 21-25 September, Brisbane, Australia, Paper No. PL20-3.
  118. S.S. Sengor, C.J. Brugato, P. Gikas, M. Fletcher, T.R. Ginn, 2009, "A Comparison of Approaches to Model Thermodynamics and Maintenance Energy Requirements of Microbial Metabolism", 19th Goldschmidt Conference - "Challenges to Our Volatile Planet", 21-26 June, Davos, Switzerland.
  119. P. Gikas, Y. Christodoulakos, V. Gikas and A.N. Angelakis, 2009, "A Multi-Disciplinary Approach to the Water Supply System of the Roman City of Aptera, Crete, Greece", 2nd IWA International Symposium on Water and Wastewater Technologies in Ancient Civilizations, 28-30 May, Bari, Italy.
  120. P. Gikas, S. Liu and L.G. Papageorgiou, 2009, "Optimisation of Water Resources Management for Insular and Geographically Isolated Areas", 2nd International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2009), 21-25 June, Mykonos, Greece.
  121. P. Gikas and G. Tchobanoglous, 2009, "The Role of Reclaimed Water in Sustainable Water Resources Management in The Aegean Islands", 2nd International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 2009), 21-25 June, Mykonos, Greece.
  122. P. Gikas, 2009, "Water Reuse: Challenges and Opportunities for Greece", Membrane Technologies for Alternative Water Resources, Workshop, 5 March, Thessaloniki, Greece.
  123. S.S. Sengor, P. Gikas, T. Ginn, N. Spycher, S. Barua, B. Peyton and R. Sani, 2008, "Modeling Biogeochemical Reactive Transport and Metal Toxicity in Lake Sediment", 4th European Bioremediation Conference, 3-6 September, Chania, Greece.
  124. B. Zhu, R. Zhang, P. Gikas, J. Rapport, B. Jenkins and X. Li, 2008, "Integrated Rotary Drum and Anaerobic Phased Solis Digester System for High Rate Biogas Production from Municipal Solid Wastes", 13th International Biotechnology Symposium and Exhibition (IBS 2008), 12-17 October, Dalian, China.
  125. P. Gikas, S. S. Sengor, T. R. Ginn, J. Moberly and B. Peyton, 2008, "Mathematical Modeling of Microbial Growth and Lag, in Environments Contaminated with Heavy Metals", 9th International Conference: Protection and Restoration of the Environment, 29 June – 3 July, Kefallonia, Greece.
  126. P. Gikas, B. Zhu, R. Zhang, B. Jenkins, 2008, "Biogas Recovery from Municipal Solid Waste Treated by the Rotary Drum Reactor (RDR) Process", 2nd International Conference on Engineering for Waste Valorisation, 3-5 June, Patras, Greece.
  127. P. Gikas  and A.N. Angelakis, 2008, "Reclamation and Reuse Water from Wastewater" EcoTech Conference, 3-6 April, Anthousa, Greece. (In Greek).
  128. B. Zhu, R. Zhang, P. Gikas, J. Rapport, B. Jenkins and X. Li, 2008, "Integrated Rotary Drum and Anaerobic Phased Solis Digester System for Biogas Production from Municipal Solid Wastes", ASABE Annual International Meeting, 29 June- 2 July, Providence, RI, USA.
  129. S. S. Sengor, P. Gikas and T. R. Ginn, 2008, "Mathematical Modeling of Microbial Metabolic Lag under Exposure to Heavy Metals", 17th International Conference on Computational Methods in Water Resources, 6-8 July, San Francisco, USA.
  130. P. Gikas  and A.N. Angelakis, 2008, "Water Resourses Management at the Basins of Crete and Aegean Islands", 2nd International Conference on Small and Decentralized Water and Wastewater Treatment Plants, 2-4 May, Skiathos, Greece, (In Greek).
  131. P. Gikas  and G. Tchobanoglous, 2008, "The Importance of Water Reuse in Sustainable Water Resources Management: State of the Art through the Presentation of Selected Case Studies", 2nd International Conference on Small and Decentralized Water and Wastewater Treatment Plants, 2-4 May, Skiathos, Greece.
  132. R. Zhang, P. Gikas, B. Zhu, H. El-Mashad, J. Lord and C. Choate, 2008, "Biogas Energy Production from Municipal Organic Solid Wastes", Institute of Biological Engineering 2008 Annual Conference, 6-9 March, Chapel Hill, NC, USA.
  133. S. S. Sengor, N. Spycher, T. R. Ginn, P. Gikas, S. Barua, B. Peyton and R. Sani, 2007, "Modeling Redox Disequilibrium And Biogeochemical Behavior of Metals in Lake Sediments", 2007 Geological Society of America Annual Meeting, 28-31 October, Denver, Co, USA. Paper No. 126-5.
  134. P. Gikas,  A. Georgakopoulos and I. Droumbogianni, 2006, "Commissioning Strategy for the Anaerobic Sludge Digesters at the Athens Wastewater Treatment Plant in Psyttalia", 8th International Conference: Protection and Restoration of the Environment, Conference proceedings, Pp. 281, Chania, Greece.
  135. P. Gikas  and P. Romanos, 2006, "Activated Sludge Growth Stimulation and Inhibition by Cr(III), Cr(IV), Ni(II) and Cd(II)", 8th International Conference: Protection and Restoration of the Environment, Conference proceedings, Pp. 259, Chania, Greece.
  136. P. Gikas  and A. G. Livingston, 2006, "Investigation of Biofilm Growth and Attrition in an Air Lift Bioreactor Degrading Organic Pollutants, by the Use of Radiolabelled Tracers", 8th International Conference: Protection and Restoration of the Environment, Conference proceedings, Pp. 189, Chania, Greece.
  137. P. Gikas,  2005, "Water Reuse", Workshop: Management of Wastewater and Rain Water, N.T.U.A., Department of Civil Engineering, Athens (In Greek).
  138. P. Gikas, 2005, "Waste to Energy Peotential", Conference on Renewable Energy Resources, EKDDA, Pp. 33-44, Chania, Greece (In Greek).
  139. P. Gikas, 2004, "Water Reclamation and Reuse", Conference on Water Resources Management, EKDDA, Pp. 70-86, Delphi, Greece (In Greek).
  140. P. Gikas, 2003, "Zentrum für Stadtabwasserbehandlung des Athener Beckens auf der Insel Psyttalia", Symposion für Moderne Abfallwirtschaft, Pp. P1-11, Athens, Greece (In English).
  141. P. Gikas, 2003, "Wastewater Treatment of the Greater Athens Area at Psyttaleia Island – On step Before Plant Commissioning", Conference on Wastewater Mangement: Policies and Practices, EKDDA, Pp. 53-65, Athens, Greece (In Greek).
  142. Α. Deligiannis, D. Chatzopoulos  and  P. Gikas, 2001, "Novel Wastewater Pre-Treatment Technology for Pulp and Paper Mills, with Particular Emphasis on Colour Removal", 55th Appita Annual Conference, Conference Proceedings, Pp. 159-166, Hobart, Australia.
  143. Α. Deligiannis, P. Gikas and D. Chatzopoulos, 1999, "Novel Pre-Treatment Technology for Wastewaters from Wood-Panel Manufacturing Facilities", 3rd European Panel Products Symposium, Symposium Proceedings, Pp. 177-189, Llandudno, Wales, UK.
  144. P. Gikas and A. G. Livingston, 1996, "An Integrated Model for Three Phase Air Lift Bioreactors Degrading Organic Pollutants", 2nd Specialized Conference on Pretreatment of Industrial Wastewaters, IAWQ, Conference Proceedings, Pp. 734-737, Athens, Greece.
  145. A. G. Livingston, P. R. Brooks, L. M. F. Freitas dos Santos and P. Gikas, 1995, "Mass Transfer Coefficients in Process Scale and Tube Membrane Extraction Modules", AIChe, Maiami, U. S. A..
  146. P. Gikas and A. G. Livingston, 1995, "Viability of Immobilized Cells: Use of Specific ATP levels and Oxygen Uptake Rates", International Symposium on Immobilized Cells, Book of Abstracts, Pp. 24-25, Noordwijkerhout, The Netherlands.
  147. P. Gikas and A. G. Livingston, 1995, "Evaluation of Immobilized Biomass Viability" Conference Proceedings, Vol.: 3, Pp.: 95, 7th European Congress on Biotechnology (ECB7), Nice, France.
  148. P. Gikas and A. G. Livingston, 1994, "Determination of Biomass Viability Based on ATP and Oxygen Uptake Rate Measurements", 2nd UK Congress of Biotechnology, International Symposium on Environmental Biotechnology, Pp. 95-97, Brighton, UK.
  149. P. Gikas and A. G. Livingston, 1994, "Evaluation of Biomass Viability in a Suspended Cell System", in Better Living Through Innovative Biochemical Engineering, editors W. K. Teo, M. G. S. Yap and S. K. W. Oh, Continental Press Ltd., Pp. 711-713, 3rd Asia – Pacific Biochemical Engineering Conference, Singapore.
  150. P. Gikas and A. G. Livingston, 1993, "Use of ATP to Characterize Cell Viability in Continuous Bioreactors", Conference Proceedings Vol.: 2, Pp.: TU121, 6th European Congress on Biotechnology (ECB6), Florence, Italy.
  151. P. Gikas and A. G. Livingston, 1993, "Use of ATP to Characterize Cell Viability in Continuous Bioreactors", IchemE Research Event, Birmingham, UK, Pp. 188-190.
  152. G. Sakellaris and P. Gikas, 1991, "Growth and Proteinase Production of Lactobacilli Grown in Media Containing Casein", 1st B.R.I.D.G.E. Meeting, Estoril, Portugal, Abstract book: P-5, P. 6.
  153. P. Gikas, B. Macris, G. Sakellaris and A.E. Evangelopoulos, 1990, "Optimization of Proteinase Production by Transformed Cells of Lactobacillus plantarum", 20th FEBS Meeting, Budapest Hungary, Abstract book: P-Tu 463, P. 200.

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