T. A. Kurniawan, X. Liang, D. Singh, M. H. D. Othman, H. H. Goh, P. Gikas, A. O. Kern, T. D. Kusworo and J. A. Shoqeir, 2021, "Harnessing landfill gas (LFG) for electricity: A strategy to mitigate greenhouse gas (GHG) emissions in Jakarta (Indonesia)", Journal of Environmental Management, Vol.: 301, 113882, IF: 5.647. https://doi.org/10.1016/j.jenvman.2021.113882
G. Makaroglou, H. Marakas, S. Fodelianakis, A. Axaopoulou, I. Koumi, N. Kalogerakis and P. Gikas, 2021, "Optimization of biomass production from Stichococcous sp. biofilms coupled to wastewater treatment", Biochemical Engineering Journal, Vol.: 169, 107964, IF: 3.475. https://doi.org/10.1016/j.bej.2021.107964
V. Manasaki,I. Palogos, I. Chourdakis, K. Tsafantakis and P. Gikas, 2021. "Techno-economic assessment of LFG to electric energy technologies at a municipal landfill: Model simulation and field measurements", Chemosphere, Vol.: 269, 128688,IF: 5.778. https://doi.org/10.1016/j.chemosphere.2020.128688
N.P. Raval, S. Mukherjee, N.K. Shah, P. Gikas,and M. Kumar, 2021, "Hexametaphosphate Cross-linked Chitosan Beads for the Eco-efficient removal of Organic Dyes: Tackling Water Quality", Journal of Environmental Management, Vol.: 280, 111680, IF: 5.647. https://doi.org/10.1016/j.jenvman.2020.111680
M. Tun, H. Raclavská, D. Juchelkova, J. Růžičková, M. Safář, K. Štrbová and P. Gikas, 2020, "Spent Coffee Ground as Renewable Energy Source: Evaluation the Drying Processes", Journal of Environmental Management, Vol.: 275, 111204, IF: 5.647. https://doi.org/10.1016/j.jenvman.2020.111204
E.Vaiopoulouand P. Gikas, 2020, "Regulations for Chromium Emissions to the Aquatic Environment in Europe and Elsewhere", Chemosphere, Vol.: 254, 126876, IF: 5.778.https://doi.org/10.1016/j.chemosphere.2020.126876
H. Huang, L. Luo, L. Huang, J. Zhang, P. Gikas and Y. Zhou, 2020, "Effect of Manure Compost on Distribution of Cu and Zn in Rhizosphere Soil and Heavy Metal Accumulation by Brassica juncea", Water, Air, & Soil Pollution, Vol.: 231 (195), Pp.: 195, IF: 1.900.https://doi.org/10.1007/s11270-020-04572-4
A. Siatou, A. Manali and P. Gikas, 2020, "Energy Consumption and Internal Distribution in Activated Sludge Wastewater Treatment Plants of Greece", Water, Vol.: 12, 1204, Pp. 1-16, IF: 2.544. https://doi.org/10.3390/w12041204
I.G.. Priede, R.W. Burgass, M. Mandalakis, A. Spyros, P. Gikas, F. Burns and J. Drewery, "Near Equal Compressibility of Liver Oil and Seawater Minimises Buoyancy Changes in Deep-Sea Sharks and Chimaeras", Journal of Experimental Biology, 223, jeb222943, IF: 3.014. https://doi.org/10.1242/jeb.222943
M. Kumar, A.K. Thakur, P. Mazumder, K. Kuroda, S. Mohapatra, J. Rinklebe, A.L. Ramanathan, Z. Cetecioglu, S. Jain, V.K. Tyagi, P. Gikas, S. Chakraborty, M.T. Islam, A. Ahmad, A.V. Shah, A.K. Patel, T. Watanabe, M. Vithanage, K. Bibby, M. Kitajima and P. Bhattacharya, 2020, "Frontier review on the propensity and repercussion of SARS-CoV-2 migration to aquatic environment", Journal of Hazardous Materials Letters, Vol.: 1, Pp.: 100001, https://doi.org/10.1016/j.hazl.2020.100001
M. Farazaki and P. Gikas, 2019, “Nitrification-Denitrification of Municipal Wastewater without Recirculation, Using Encapsulated Microorganisms”, Journal of Environmental Management, Vol.:242, Pp.: 258-265, IF: 5.647. https://doi.org/10.1016/j.jenvman.2019.04.054
M. Elhag, I. Gitas, A. Othman, J. Bahrawi and P. Gikas, 2019, “Assessment of Water Quality Parameters Using Temporal Remote Sensing Spectral Reflectance in Arid Environments, Saudi Arabia”, Water, Vol.: 11(3), Pp.: 556, IF: 2.544. https://doi.org/10.3390/w11030556
S.S. Şengor, P. Gikas and J.G. Moberly, 2019, “Single and Joint Effects of Zn and Cu to ATP Pool and Microbial Recovery in Continuous Growth Systems”, Journal of Chemical Technology and Biotechnology, Vol.: 94(3), Pp.: 892-899, IF: 2.750. https://doi.org/10.1002/jctb.5836
K.Moustakas, P. Gikas, S. Malamis and E. Ranieri, 2018. “Sustainable Waste and Wastewater Management”, Editorial, Journal of Environmental Management, Vol.: 216, P.p.: 1-3, IF: 5.647. 10.1016/j.jenvman.2018.04.024
P. Gikas, B. Zhu, N.-I. Batistatos and R. Zhang, 2018 “Evaluation of the Rotary Drum Reactor Process as Pretreatment Technology of Municipal Solid Waste for Thermophilic Anaerobic Digestion and Biogas Production”, Journal of Environmental Management, Vol.:216, Pp.: 96-104, IF: 5.647. https://doi.org/10.1016/j.jenvman.2017.07.050
P. Gikas, S. Malamis, K. Moustakas and D. Bolzonella, 2017, “Waste Management”, Editorial, Journal of Environmental Management, Vol.: 203, Pp.: 619-620, IF: 5.647. https://doi.org/10.1016/j.jenvman.2017.08.056
P. Gikas, E. Ranieri, D. Sougioultzis, M. Farazaki and G. Tchobanoglous, 2017, “Alternative collection systems for decentralized wastewater management: An overview and case study of the vacuum collection system in Eretria town, Greece”, Water Practice and Technology, Vol.:12, Iss.: 3, Pp.: 604-618, IF: 0.510. https://doi.org/10.2166/wpt.2017.050
P. Gikas, 2017, “Towards Energy Positive Wastewater Treatment Plants”, Journal of Environmental Management, Vol.: 203, Iss.: 2, Pp.: 621-629, IF: 5.647. https://doi.org/10.1016/j.jenvman.2016.05.061
P. Gikas, 2017, “Ultra High Temperature Gasification of Municipal Wastewater Primary Biosolids in a Rotary Kiln Reactor for the Production of Synthesis Gas”, Journal of Environmεntal Management, Vol.: 203, Iss.: 2, Pp.: 688-694, IF: 5.647. https://doi.org/10.1016/j.jenvman.2016.02.043
A. Emdadi, P. Gikas, M. Farazaki and Y. Emami, 2016, “Salinity Gradient Energy Potential at the Hyper Saline Urmia Lake - Zarrinehrud River System in Iran”, Renewable Energy, Vol.: 86, Pp.: 154-162, IF: 6.274.https://doi.org/10.1016/j.renene.2015.08.015
S. Wang, L. Peng, Y. Jiang, P. Gikas, B. Zhu and H. Su, 2016, “Evaluation of a Novel Split-Feeding Anaerobic/Oxic Baffled Reactor (A/OBR) for Foodwaste Anaerobic Digestate: Performance, Modeling and Bacterial Community”, Scientific Reports, Vol.: 6, Article: 34640, Pp.: 1-13, IF: 3.998. https://doi.org/10.1038/srep34640
P. Gikas,S. Liu, L.G. Papageorgiou and F. Konstantopoulou, 2016, “The Role of Reclaimed Water in Optimal Management of Islands’ Water Supply and Sewerage Infrastructure”, Water Supply Association Journal (水道協会雑誌), Vol.: 85, Iss.: 5, Pp.: 13-15. (In Japanese). https://ci.nii.ac.jp/naid/40020823325/en/
E. Ranieri, F. Bombardelli, P. Gikas, and B. Chiaia, 2016, “Soil Pollution Prevention and Remediation”, Editorial, Applied and Environmental Soil Science, Vol.: 2016, Pp.: 1-2, Article ID 9415175, IF: 1.390. http://dx.doi.org/10.1155/2016/9415175
S. Kumar, P. Hettiaratchi, N. Ashwath and P. Gikas, 2015, “Toxicity of Environmental Contaminants”, Editorial, BioMed Research International, Vol.: 2015, Pp.: 1, Article ID 702439, IF: 2.140. http://dx.doi.org/10.1155/2015/702439
E. Ranieri, A. Gorgoglione, A. Pertella, V. Petrutzzelli and P. Gikas, 2015, “Benzene removal in Horizontal Subsurface Flow Constructed Wetlands treatment”, International Journal of Applied Engineering Research, Vol.: 10, Iss.: 6, Pp.: 14603-14614, IF: 0.510. https://www.researchgate.net/publication/277444349
S. Liu, F. Konstantopoulou, L.G. Papageorgiou and P. Gikas, 2015, “Optimal planning of water and wastewater management infrastructure for insular areas: The role of water reuse”, Water Science and Technology: Water Supply, Vol.: 15, Iss.: 4, Pp.: 701-708, IF: 0.900. https://doi.org/10.2166/ws.2015.017
P. Gikas and T. Tsoutsos, 2015, “Near Zero Energy Wastewater Treatment Plants for the Greek Islands”, Desalination and Water Treatment, Vol.: 53, Iss.: 12, Pp.: 3328-3324,IF: 0.854. https://doi.org/10.1080/19443994.2014.934109
A.N. Angelakis andP. Gikas, 2014, “Water Reuse: Overview of current practices and trends in the World with emphasis in EU states”, Water Utility Journal, Vol.: 6, Pp.: 67-78. http://www.ewra.net/wuj/pdf/WUJ_2014_08_07.pdf
E. Ranieri, A. Gorgoglione, C. Montanaro, A. Iacovelli and P. Gikas, 2014, “Removal capacity of BTEX and metals of constructed wetlands under the influence of hydraulic conductivity”, Desalination and Water Treatment, Vol.: 56, Iss.: 5, Pp. 1-8, IF: 0.854. https://doi.org/10.1080/19443994.2014.951963
S.S. Sengor and P. Gikas, 2014, "The influence of single and combined effects of Zn, Cu and temperature on microbial growth", Global Nest Journal, Vol.: 16, Iss.: 4, Pp.: 699-706, IF: 0.983. https://doi.org/10.30955/gnj.001418
P. Gikas, 2014, “Electrical energy production from biosolids: A comparative study between anaerobic digestion and ultra-high-temperature gasification”, Environmental Technology, Vol.: 35, Iss.: 17, Pp.: 2140-2146, IF: 2.213. https://doi.org/10.1080/09593330.2014.895049
E. Ranieri and P. Gikas, 2014, “Effects of plants for reduction and removal of hexavalent chromium from a contaminated soil”, Water, Air, & Soil Pollution, Vol.: 225, Pp.:1981-1989, IF: 1.900. https://doi.org/10.1007/s11270-014-1981-2
V.M. Daskalaki, H. Marakas, D. Mantzavinos, A. Katsaounis and P. Gikas, 2013, “Use of Seawater for the Boron-Doped Diamond Electrochemical Treatment of Diluted Vinasse Wastewaters”, Water Science and Technology, Vol.: 68, Iss.:11, Pp.: 2344-2350, IF: 1.638. https://doi.org/10.2166/wst.2013.496
S.S. Sengor, T. Ginn, C.J. Brugato, and P. Gikas, 2013, "Anaerobic Microbial Growth near Thermodynamic Equilibrium as a Function of ATP/ADP Cycle: The Effect of Maintenance Energy Requirements", Biochemical Engineering Journal, Vol.: 81, Pp.: 65-72, IF: 3.475. https://doi.org/10.1016/j.bej.2013.10.006
P. Gikas, E. Ranieri and G. Tchobanoglous, 2013, "Removal of Iron, Chromium and Lead from Wastewater by Horizontal Subsurface Flow Constructed Wetlands", Journal of Chemical Technology and Biotechnology, Vol.:88, Iss.: 10, Pp.: 1906-1912, IF:2.750.https://doi.org/10.1002/jctb.4048
E. Ranieri, P. Gikas and G. Tchobanoglous, 2013, "BTEX Removal in Pilot Scale Horizontal Subsurface Flow Constructed Wetlands", Desalination and Water Treatment, Vol.: 5, Pp.: 3032-3039, IF: 0.854. https://doi.org/10.1080/19443994.2012.748453
M. Kellis, I. Kalavrouziotis and P. Gikas, 2013, "Review on Wastewater Reuse in the Mediterranean Countries, Focusing on Regulations and Policies for Municipal and Industrial Applications", Global Nest Journal, Vol.: 15, Iss.: 3, Pp.: 333-350, IF: 0.983. https://doi.org/10.30955/gnj.000936
E. Vaiopoulou and P. Gikas, 2012, "Effects of Chromium on Activated Sludge and on the Performance of Wastewater Treatment Plants: A Review", Water Research, Vol.: 46, Pp.: 549-570, IF: 9.130. https://doi.org/10.1016/j.watres.2011.11.024
S. Liu, L.G. Papageorgiou and P. Gikas, 2012, "Integrated Management of Non-Conventional Water Resources in Anhydrous Islands", Water Resources Management, Vol.: 26, Pp.: 359-375, IF: 2.924 https://doi.org/10.1007/s11269-011-9921-z
S.S. Sengor, P. Gikas, T.R. Ginn, J. Moberly and B. Peyton, 2012 "Comparison of Single and Joint Effects of Zn and Cu in Continuous Flow and Batch Reactors", Journal of Chemical Technology and Biotechnology, Vol.: 87, Iss.: 3, Pp.: 374-380, IF: 2.750. https://doi.org/10.1002/jctb.2730
F. Konstantopoulou, S. Liu, L.G. Papageorgiou and P. Gikas, 2011, "Water Resources Management for Paros Island, Greece", International Journal of Sustainable Water and Environmental Systems, Vol.: 2, Iss.: 1, Pp.: 1-6. DOI: 10.5383/swes.02.01.001
S. Liu, F. Konstantopoulou, L.G. Papageorgiou and P. Gikas, 2011, "A Mixed Integer Optimisation Approach for Integrated Water Resources Management", Computers & Chemical Engineering, Vol.:35, Pp.: 858-875, IF: 4.000. https://doi.org/10.1016/j.compchemeng.2011.01.032
S. Liu, L.G. Papageorgiou and P. Gikas, 2011, "Management of Desalinated Seawater, Wastewater and Reclaimed Water in Insular and Geographically Isolated Areas Using Optimisation Techniques", Desalination and Water Treatment, Vol.: 33, Pp.: 3-13, IF:0.854. https://doi.org/10.5004/dwt.2011.2610
B. Zhu, R. Zhang,P. Gikas, J. Rapport, B. Jenkins, X. Li, 2010, "Biogas Production from Municipal Solid Wastes Using an Integrated Rotary Drum and Anaerobic Phased Solids Digester System", BioresourceTechnology, Vol.:101, Pp.: 6374-6380, IF: 7.539. https://doi.org/10.1016/j.biortech.2010.03.075
S.S. Sengor, C.J. Brugato, P. Gikas, M. Fletcher and T.R. Ginn, 2009, "A Comparison of Approaches to Model Thermodynamics and Maintenance Energy Requirements of Microbial Metabolism", Geochimica et Cosmochimica ACTA, Vol.: 73, Iss.: 13, (Goldschmidt Abstracts 2009 – S), Pp.: A1196, IF: 4.659. https://doi.org/10.1016/j.gca.2009.05.015
R. Zhang, J. Rapport,P. Gikas, B. Zhu, B. Jenkins, J. Lord and C. Choate, 2009, "Pretreating MSW Prior to Anaerobic Digestion", BioCycle, Vol.: 50, Iss.:4, Pp.: 20-25, IF: 0.060.
P. Gikas, S.S. Sengor, T. Ginn, J. Moberly and B. Peyton, 2009, "The Effects of Heavy Metals and Temperature on Microbial Growth and Lag", Global Nest Journal, Vol.: 11, Iss.: 3, Pp.: 325-332, IF: 0.983. https://doi.org/10.30955/gnj.000611
P. Gikasand A.N. Angelakis, 2009, "Water Resources Management in Crete and in the Aegean Islands, with Emphasis on the Utilization of Non-Conventional Water Sources", Desalination, Vol.: 248, Pp.: 1049-1064, IF: 7.098. https://doi.org/10.1016/j.desal.2008.10.021
S.S. Sengor, S. Barua, P. Gikas, T.R. Ginn, B. Peyton, R.K. Sani and S.F. Spycher, 2009, "Influence of Heavy Metals on Microbial Growth Kinetics Including Lag Time: Mathematical Modeling and Experimental Verification", Environmental Toxicology and Chemistry, Vol.:28, Iss.: 10, Pp.: 2020-2029, IF: 3.152. https://doi.org/10.1897/08-273.1
P. Gikasand G. Tchobanoglous, 2009, "Sustainable Use of Water in the Aegean Islands", Journal of Environmental Management, Vol.: 90, Pp.: 2601-2611, IF: 5.647. https://doi.org/10.1016/j.jenvman.2009.01.020
B. Zhu, P. Gikas, R. Zhang, J. Lord, B. Jenkins and X. Li, 2009, "Characteristics and Biogas Production Potential of Municipal Solid Wastes Pretreated with A Rotary Drum Reactor", Bioresource Technology, Vol.: 100, Iss: 3, Pp.: 1122-1129, IF: 7.539. https://doi.org/10.1016/j.biortech.2008.08.024
P. Gikasand G. Tchobanoglous, 2009, "The Role of Satellite and Decentralized Strategies in Water Resources Management", Journal of Environmental Management, Vol.: 90, Iss.: 1, Pp.: 144-152, IF: 5.647. https://doi.org/10.1016/j.jenvman.2007.08.016
P. Gikas, 2008, "International Practices in Water Reclamation and Reuse", Hydroeconomy, Vol.: 63, Pp.: 20-28 (In Greek).
P. Gikas, 2008, "Commissioning of the Gigantic Anaerobic Sludge Digesters at the Wastewater Treatment Plant of Athens", Environmental Technology, Vol.: 29, Pp.: 131-139, IF: 2.213. https://doi.org/10.1080/09593330802028469
P. Gikas, 2008, "Single and Combined Effects of Nickel and Cobalt Ions on Activated Sludge and on other Aerobic Microorganisms: A Review", Journal of Hazardous Materials, Vol.: 159, Pp.: 187-203, IF: 9.038. https://doi.org/10.1016/j.jhazmat.2008.02.048
P. Gikasand G. Tchobanoglous, 2007, "Satellite and Decentralized Wastewater Treatment Systems", Environment and Engineering, Pp.: 176-184 (In Greek).
A. Paleologou,H. Marakas, N.P. Xekoukoulotakis, A. Moya, Y. Vergara, N. Kalogerakis, P. Gikas and D. Mantzavinos, 2007, "Disinfection of Water and Wastewater by TiO2 Photocatalysis, Sonolysis and UV-C Irradiation", Catalysis Today, Vol.: 129, Pp.: 136-142, IF: 5.825. https://doi.org/10.1016/j.cattod.2007.06.059
P. Gikasand A. G. Livingston, 2007, "Simulation of the Cellular Anabolic Activity within Biofilms: Where a New Immobilized Cell will Preferably Be Born?", Biochemical Engineering Journal, Vol.:35, Pp.: 29-36, IF: 3.475. https://doi.org/10.1016/j.bej.2006.12.018
P. Gikas, 2007, "Kinetic Responses of Activated Sludge to Individual and Joint Nickel (Ni(II)) and Cobalt (Co(II)) – An Isobolographic Approach", Journal of Hazardous Materials, Vol.: 143, Pp.: 246-256, IF: 9.038. https://doi.org/10.1016/j.jhazmat.2006.09.019
P. Gikasand P. Romanos, 2006, "Effects of Tri-valent (Cr(III)) and Hexa-valent (Cr(VI)) Chromium on the Growth of Activated Sludge", Journal of Hazardous Materials, Vol.: 133, Pp. 212-217, IF: 9.038 https://doi.org/10.1016/j.jhazmat.2005.10.023
P. Gikas, 2006, "Water Reclamation and Reuse", Environment and Engineering, Pp.: 68-76 (In Greek).
P. Gikas and A. G. Livingston, 2006, "Investigation of Biofilm Growth and Attrition in a Three Phase Air Lift Bioreactor Using 35S as a Radiolabelled Tracer", Journal of Chemical Technology and Biotechnology, Vol.: 81, Pp.: 858-865, IF: 2.750. https://doi.org/10.1002/jctb.1480
P. Gikas and A. G. Livingston, 1999, "Steady State Behaviour of Three Phase Air Lift Bioreactors – An Integrated Model and Experimental Verification", Journal of Chemical Technology and Biotechnology, Vol.: 74, Pp.: 551-561, IF: 2.750. https://doi.org/10.1002/(SICI)1097-4660(199906)74:6<551::AID-JCTB72>3.0.CO;2-C
P. Gikas and A. G. Livingston, 1998, "Use of ATP Concentration and Specific Oxygen Uptake Rate to Determine Parameters of a Structured Model of Biomass Growth", Enzyme and Microbial Technology, Vol: 22, Pp.: 500-510, IF: 3.448. https://doi.org/10.1016/S0141-0229(97)00242-1
P. Gikas and A. G. Livingston, 1997, "Specific ATP and Specific Oxygen Uptake Rate in Immobilized Cell Aggregates: Experimental Results and Theoretical Analysis Using Structured Model of Immobilized Cell Growth", Biotechnology and Bioengineering, Vol:55, Pp. 660-673, IF: 4.002. https://doi.org/10.1002/(SICI)1097-0290(19970820)55:4<660::AID-BIT8>3.0.CO;2-F
P. Gikas and A. G. Livingston, 1996, "Viability of Immobilized Cells: Use of Specific ATP levels and Oxygen Uptake Rates", Progress in Biotechnology, Vol: 11, Pp. 264-271. https://doi.org/10.1016/S0921-0423(96)80036-0
P. Gikas and A. G. Livingston, 1993, "Specific ATP Concentrations in Freely Suspended and Immobilized Cells Degrading 3,4 Dichloroaniline", Progress in Biotechnology, Vol: 9, Part: 1, Pp. 489-492.
P. Gikas and A. G. Livingston, 1993, "Use of ATP to Characterize Biomass Viability in Freely Suspended and Immobilized Cell Bioreactors", Biotechnology and Bioengineering, Vol: 42, Pp.: 1337-1351, IF: 4.002. https://doi.org/10.1002/bit.260421111
G. Sakellaris and P. Gikas, 1991, "The Inductive Role of Casein on Proteinase Production from Lactobacilli", Biotechnology Letters, Vol: 13, Iss.:3, Pp.: 217-222, IF: 1.997. http://dx.doi.org/10.1007/bf01025821