Alexandros Stefanakis
Assistant Professor, Water and Wastewater process engineering

Environmental Engineering and Management Laboratory
Division II: Process Development, Analysis and Design

Extended CV (pdf)


  • Office Hours: Daily 11:00-13:00


  • 2011: Doctor of Philosophy, Department of Environmental Engineering, Faculty of Engineering, Democritus University of Thrace.
  • 2007: Master in Science, Department of Civil Engineering, Faculty of Engineering, Democritus University of Thrace.
  • 2005: Diploma of Environmental Engineer, Department of Environmental Engineering, Faculty of Engineering, Democritus University of Thrace.


Research Interests

  • Water and wastewater treatment processes
  • Ecological engineering and technology with focus on Constructed Wetlands for municipal and industrial wastewater
  • Circular Economy and Sustainability
  • Nature-Based Solutions and green infrastructure for water management in the urban and rural context
  • Recycling and reuse of treated effluents
  • Production and application of bio-materials (biochars, compost)

Participation in Research Programs and Projects

  • Basic Research Financing Action, National Recovery and Resilience Plan (Greece 2.0), «Development of an innovative constructed WETland design: a nature-based solution for CIRCular wastewater management», Hellenic Foundation for Research and Innovation (HFRI), 2024-2026.
  • Horizon Europe (HORIZON), « XTRACT - A Sustainable Ecosystem for the Innovative Resource Recovery and Complex Ore Extraction», HORIZON-CL4-2023-RESILIENCE-01-02, 2024-2027.
  • Green Fund, Ministry of Environment and Energy, «Management and Utilization of Sewage Sludge in the Circular Economy using Green technologies and methods», Priority Axis 3 (Research and Application), 2023-2025.
  • PRIMA programme, Horizon 2020, «Resilient Mediterranean with a holistic approach to sustainable agriculture: Addressing challenges of water, soil, energy and biodiversity», 2022-2025.
  • «Monitoring and optimizing of pilot SunAir Fountain Panels for drinking water production and small crop irrigation in Crete», Funder by Agua De Sol, France, 2023-2024.

Distinctions and Awards

  • Elected President of the International Ecological Engineering Society
  • Included in the list of ‘World’s Top 2% Scientists’ of Stanford University (USA) for 2021-2022
  • European Climate Pact Ambassador, European Commission (2021-current)
  • National Research Award 2021, The Research Council, Sultanate of Oman
  • Editor-in-Chief, Springer journal “Circular Economy and Sustainability” and Springer Book Series “Circular Economy and Sustainability” (2021-current)

Recent Publications

  • Mathieu Nsenga Kumwimba, Bo Zhu, Alexandros I. Stefanakis, Fidelis O. Ajibade, Mawuli Dzakpasu, Elisa Soana, Tao Wang, Muhammad Arif, Diana Kavidia Muyembe and Temitope Deborah Agboola, 2023. Advances in ecotechnological methods for diffuse nutrient pollution control: wicked issues in agricultural and urban watersheds. Front. Environ. Sci., 11:1199923,
  • Stefanakis, A.I., 2022. Constructed Wetlands for wastewater treatment in hot and arid climates. Springer Nature Switzerland AG.
  • Gaballah, M.S., Abdelwahab, O., Barakat, K.M., Stefanakis, A.I., 2022. A pilot system integrating a settling technique and a horizontal subsurface flow constructed wetland for the treatment of polluted lake water. Chemosphere 295, 133844.
  • Oral, H.V., Radinja, M., Rizzo, A., Kearney, K., Andersen, T.R., Krzeminski, P., Buttiglieri, G., Ayral-Cinar, D., Comas, J., Gajewska, M., Hartl, M., Finger, D.C., Kazak, J.K., Mattila, H., Vieira, P., Piro, P., Palermo, S.A., Turco, M., Pirouz, B., Stefanakis, A.I., Regelsberger, M., Ursino, N., Carvalho, P.N., 2021. Management of Urban Waters with Nature-Based Solutions in Circular Cities - Exemplified through Seven Urban Circularity Challenges. Water 13(23), 3334;
  • Stefanakis, A.I. and Nikolaou, I., 2021. Circular Economy and Sustainability - Management and Policy, Volume I & ΙΙ. Elsevier Publishing, Amsterdam, The Netherlands, September.
  • Mozaffari, M.H., Shafiepour, E., Mirbagheri, S.A., Rakhshandehroo, G., Wallace, S., Stefanakis, A.I., 2021. Hydraulic characterization and removal of metals and nutrients in an aerated horizontal subsurface flow “racetrack” wetland treating oil industry effluent. Water Research 200, 117220.
  • Al-Wahaibi, B., Jafary, T., Al-Mamun, A., Baawain, M.S., Aghbashio, M., Tabatabaei, M., Stefanakis, A.I., 2021. Operational modifications of a full-scale experimental vertical flow constructed wetland with effluent recirculation to optimize total nitrogen removal. Journal of Cleaner Production 296, 126558, 126558.
  • Stefanakis, A.I., Calheiros, CSC, Nikolaou, I., 2021. Nature-Based Solutions as a Tool in the New Circular Economic Model for Climate Change Adaptation. Circular Economy and Sustainability 1, 303-318,
  • Stefanakis, A.I., 2020. Constructed Wetlands for Sustainable Wastewater Treatment in Hot and Arid Climates: Opportunities, Challenges and Case Studies in the Middle East. Water 12(6), 1665.
  • Stefanakis, A.I., 2018. Constructed Wetlands for industrial wastewater treatment, first ed. John Wiley & Sons Ltd, Chichester, UK.

Postgraduate Courses