Τσακίρογλου Χρήστος

1990: PhD in Chemical Engineering, Univ. of Patras, Greece
1985: Diploma in Chemical Engineering, Aristotle University of Thessaloniki, Greece

• Characterization of the pore structure of materials. Estimation of the geometrical and topological properties of meso- and macro-porous materials (e.g. soils, rocks, tight reservoirs, adsorbents, catalyst supports) by combining percolation models with datasets from experimental techniques (e.g. Hg porosimetry, N₂ sorption) and calculation of relevant transport properties
• Environmental impacts of carbon dioxide storage. Effects of CO₂ leakages from deep storage sites on shallow freshwater aquifers: experimental study and numerical modeling of the dynamic physico-chemical interactions of soil/groundwater/CO₂ (e.g. CO₂ dissolution, immobilized heavy metal release).
• Soil & groundwater contamination. Experimental study of the fate of persistent organic pollutants (e.g. per- and polyfluoroalkyl substances -PFAS) in the subsurface through visualization tests on glass-etched pore networks, and soil column tests. Numerical modeling of multiphase transport/reactive processes occurring during pollutant spreading /remediation in unsaturated and saturated zones. Simulation of PFAS migration patterns toward underground aquifers in COMSOL.
• Treatment of soils and wastewater with advanced oxidation processes (AOPs). Design, development and testing of lab-scale and pilot-scale setups for the remediation of contaminated soils and wastewater with advanced oxidation processes (e.g. photocatalysis, ozonation, Fenton, sonolysis). Numerical modeling of flow, transport, and reactive processes to predict the performance of prototypes.
• In situ groundwater remediation by nanoparticles. Synthesis of stable zero valent iron nano-colloids from plant extracts (e.g. tea leaves, pomegranate). Quantification of the capacity of nanoparticles to remove organic (chlorinated hydrocarbons) and inorganic (Cr^VI) as bulk phase, dissolved in water and adsorbed on porous media. Development of true-to-the mechanism multi-scale numerical models.
• Enhanced oil recovery. Optimization of the interfacial/wetting properties of polymer-coated nanoparticles (PNPs) toward the mobilization of trapped oil ganglia from porous media. Preparation and characterization of PNP-based Pickering emulsions from plant extracts, and testing them as chemical flooding agents in porous media models and core plugs. Correlation of the oil recovery efficiency with PNP properties.
• Biomass valorization. Development of cost-effective adsorbents with chemical activation and thermal treatment of agricultural wastes. Advances toward the development of low cost hybrid adsorbents capable to remove “cocktails” of multi-species pollutants (e.g. dyes, heavy metals, pesticides) from wastewater.
• Machine learning models. Data utilization for the development of data-based models (neural networks) able to quantify correlations of input with output parameters, predict and optimize the performance of the overall processes, and design the process scale-up in a rational way.
• Development of photocatalysts, photo-reactors, and energy autonomous systems with applications to the remediation of recalcitrant pollutants. Synthesis / immobilization of bare TiO2, ZnO) or metal doped (e.g. Fe-doped ZnO) nanoparticles on substrates and incorporation in autonomous pilot units for the photocatalytic destruction of recalcitrant contaminants and pathogens from water and air.

2004-2013: Principal Researcher, FORTH/ICE-HT, Greece
1998-2004: Associate Researcher, FORTH/ICE-HT, Greece
1995-1998: Research Associate, FORTH/ICE-HT, Greece
1994-1995: Post-Doctoral Fellow, Institut Francais du Petrole (IFP), France
1992-1993: Post-Doctoral Fellow, FORTH/ICE-HT, Greece

SPE competition: Proposal presentation in the Final Round, Amsterdam, 27/10/2014, Title of proposal: “Assessing the capacity of nanofluids to enhance residual oil recovery”

2nd Prize of Applied Research: 3rd Applied Research and Innovation Competition, joint initiative of Eurobank and Hellenic Federation of Enterprises (SEV), 23/2/2016, Title: “Cold Plasma Apparatus for the fast, efficient and cost effective remediation of highly polluted soils”

Participation as coordinator or principal investigator / co-investigator, in more than 40 research projects funded by EC, General Secretariat for Research and Innovation, Greek Ministry of Education and Religious Affairs, Region of Western Greece, Industry and Other Organizations

115 publications in refereed journals; 1 national patent; 5 chapters in books; 90 publications in peer-reviewed international conference proceedings; 18 publications in non-refereed conference proceedings and workshops; 38 publications in Greek conference proceedings.

ORCID number: https://orcid.org/0000-0002-0000-4226

122 presentations in international conferences and workshops, and 34 presentations in national conferences.

Society of Petroleum Engineers (SPE); Society of Core Analysts (SCA); International Society for Porous Media (INTERPORE); Technical Chamber of Greece (TEE).

2005-2009: Adjunct Professor, Department of Mechanical Engineering, Higher Technological Educational Institute of Patras, Instructor of Fluid Mechanics I & II

2014-2019: Adjunct Professor, Hellenic Open University, School of Science and Technology, Postgraduate program: “Waste Management”

• Tsakiroglou, C.D., A. Sikinioti-Lock, K. Terzi, M.A. Theodoropoulou “A numerical model to simulate the NAPL source zone remediation by injecting zero-valent iron nanoparticles”, Eng. Sci. 192 (2018) 391-413. https://doi.org/10.1016/j.ces.2018.07.037
• Tsakiroglou, C.D., A.A. Hinai, and R. Rezaee, “A methodology to predict the gas permeability parameters of tight reservoirs from nitrogen sorption isotherms and mercury porosimetry curves”, Oil & Gas Sci. & Technol. – Rev. IFP Energies nouvelles 76 (2021) 32. https://doi.org/10.2516/ogst/2021013
• Karavasilis, M. V., M.A. Theodoropoulou, C.D. Tsakiroglou, “Photocatalytic degradation of dissolved phenol by immobilized zinc oxide nanoparticles: batch studies, continuous flow experiments, and numerical modeling”, Nanomaterials, Special Issue: “Latest Developments in Photocatalytic Materials and Processes 12 (2022) 69. https://doi.org/10.3390/nano12010069
• Ntente Ch., Z. Iatridi, M. Theodoropoulou, G. Bokias and Ch. Tsakiroglou, “Anionic amphiphilic copolymers as potential agents for enhanced oil recovery”, Reactive and Functional Polymers 184 (2023) 105521. https://doi.org/10.1016/j.reactfunctpolym.2023.105521
• Kalari K., K. Christodoulis, N. Bali, M. Theodoropoulou, C. D. Tsakiroglou, “An artificial neural network toward simulating the treatment of wastes in multiphase reactors by ozonation”, Eng. J., 471 (2023) 144433. https://doi.org/10.1016/j.cej.2023.144433
• Karavasilis, M.V., A. Sougias, D. Varvitsiotis, C.D. Tsakiroglou, “An energy autonomous and portable pilot unit for the photocatalytic treatment of wastewater”, Eng. Res. & Des. 195 (2023) 490–507. https://doi.org/10.1016/j.cherd.2023.06.014
• Christodoulis K., M. Theodoropoulouand C. D. Tsakiroglou, “Ozonation of oil-drilling cuttings in a bubble flow reactor”, Env. Chem. Eng. 12 (2024) 112436. https://doi.org/10.1016/j.jece.2024.112436
• Christodoulis K., M. Theodoropoulou, S. Kavouri, M. Dourou, C.D. Tsakiroglou, “In situ remediation of oil-contaminated soils by ozonation: experimental study and numerical modeling”, Chemosphere 372 (2025) 144133. https://doi.org/10.1016/j.chemosphere.2025.144133
• Stavrinou A., M.A. Theodoropoulou, C.D. Tsakiroglou, “Synthesis of titania/activated carbon composites for the synergistic adsorption and photocatalysis of lindane in aqueous solutions”, Environmental Science and Pollution Research 32 (2025) 6468–6491. https://doi.org/10.1007/s11356-025-36104-0
• Melitsiotis A., K. Christodoulis, M. Karavasilis, N. Bali, M. Theodoropoulou, M. Hilawie Belay, D. Rotondo, E. Robotti, E. Marengo, F. Dondero,and C. D. Tsakiroglou, “Remediation of water from perfluorooctanoic acid (PFOA) with ozonation and photocatalysis: experimental studies and numerical modelling”, Process Safety and Environ. Protect. 201 (2025) 107477. https://doi.org/10.1016/j.psep.2025.107477
• Xiaopu Wang, Hailong Zhao, Tianyuan Zheng, Yan Li, Xu Wang, Qingxuan Wang, Tao Long, Christos Tsakiroglou, and Jian Luo, “Microfluidic Study on Green Remediation of Nonaqueous Phase Liquid (NAPL) Contamination in Heterogeneous Groundwater Systems Using Dihydrolevoclucosenone (Cyrene)” Sci. Technol. 59 (2025) 6850−6862. https://doi.org/10.1021/acs.est.4c11735
• Strekla A., Ch. Ntente, M. Theodoropoulou and C. Tsakiroglou, “Green synthesis of nanocolloids and emulsions based on iron oxide nanoparticles with application to the enhanced oil recovery”, Colloids and Surfaces A: Physicochemical and Engineering Aspects 728 (2026) 138676. https://doi.org/10.1016/j.colsurfa.2025.138676