Dr Pablo Ledezma
Research Fellow
Australian Centre for Water and Environmental Biotechnology
+61 7 334 63228
| Featured projects | Duration |
|---|---|
|
UGold-Decentralised nutrient recovery from urine with microbial electroconcentration cells Australian Research Council |
2015–2019 |
|
Integrated, scalable technology solutions for PFAS removal and destruction Australian Research Council |
2019–2023 |
Book Chapters
Ieropoulos, Ioannis A., Ledezma, Pablo, Scandroglio, Giacomo, Melhuish, Chris and Greenman, John (2018). Energy and metabolism. Living machines: a handbook of research in biomimetic and biohybrid systems. (pp. 62-72) edited by Tony J. Prescott, Nathan Lepora and Paul F.M.J Verschure. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/oso/9780199674923.003.0006
Freguia, Stefano, Guo, Kun and Ledezma, Pablo (2018). Fundamentals of microbial electrochemical systems. Functional electrodes for enzymatic and microbial electrochemical systems. (pp. 51-75) edited by Nicolas Brun and Victoria Flexer. London, United Kingdom : World Scientific Publishing. doi: 10.1142/9781786343543_0002
Journal Articles
Capson-Tojo, Gabriel, Zuo Meng Gan, Albie, Ledezma, Pablo, Batstone, Damien J. and Hülsen, Tim (2023). Resource recovery using enriched purple phototrophic bacteria in an outdoor flat plate photobioreactor: Suspended vs. attached growth. Bioresource Technology, 373 128709, 1-5. doi: 10.1016/j.biortech.2023.128709
Koskue, Veera, Pyrhönen, Veli-Pekka, Freguia, Stefano, Ledezma, Pablo and Kokko, Marika (2022). Modelling and techno-economic assessment of (bio)electrochemical nitrogen removal and recovery from reject water at full WWTP scale. Journal of Environmental Management, 319 115747, 1-10. doi: 10.1016/j.jenvman.2022.115747
Monetti, Juliette, Nieradzik, Ludwika, Freguia, Stefano, Choi, Phil M., O'Brien, Jake W., Thomas, Kevin V. and Ledezma, Pablo (2022). Urea hydrolysis and long-term storage of source-separated urine for reuse as fertiliser is insufficient for the removal of anthropogenic micropollutants. Water Research, 222 118891, 1-10. doi: 10.1016/j.watres.2022.118891
Veciana, Mersabel, Bräunig, Jennifer, Farhat, Ali, Pype, Marie-Laure, Freguia, Stefano, Carvalho, Gilda, Keller, Jürg and Ledezma, Pablo (2022). Electrochemical oxidation processes for PFAS removal from contaminated water and wastewater: fundamentals, gaps and opportunities towards practical implementation. Journal of Hazardous Materials, 434 128886, 128886. doi: 10.1016/j.jhazmat.2022.128886
Koskue, Veera, Monetti, Juliette, Rossi, Natascha, Nieradzik, Ludwika, Freguia, Stefano, Kokko, Marika and Ledezma, Pablo (2022). Fate of pharmaceuticals and PFASs during the electrochemical generation of a nitrogen-rich nutrient product from real reject water. Journal of Environmental Chemical Engineering, 10 (2) 107284, 107284. doi: 10.1016/j.jece.2022.107284
Monetti, Juliette, Ledezma, Pablo and Freguia, Stefano (2021). Optimised operational parameters for improved nutrient recovery from hydrolysed urine by bio-electroconcentration. Separation and Purification Technology, 279 119793, 119793. doi: 10.1016/j.seppur.2021.119793
Jermakka, Johannes, Brewster, Emma Thompson, Freguia, Stefano, Ledezma, Pablo and Kokko, Marika (2021). Electro-concentration of urine designed for separation of sodium from nitrogen. Separation and Purification Technology, 276 119275, 119275. doi: 10.1016/j.seppur.2021.119275
Koskue, Veera, Freguia, Stefano, Ledezma, Pablo and Kokko, Marika (2021). Efficient nitrogen removal and recovery from real digested sewage sludge reject water through electroconcentration. Journal of Environmental Chemical Engineering, 9 (5) 106286, 106286. doi: 10.1016/j.jece.2021.106286
Koskue, Veera, Rinta-Kanto, Johanna M., Freguia, Stefano, Ledezma, Pablo and Kokko, Marika (2021). Optimising nitrogen recovery from reject water in a 3-chamber bioelectroconcentration cell. Separation and Purification Technology, 264 118428, 1-10. doi: 10.1016/j.seppur.2021.118428
Blázquez, Enric, Gabriel, David, Baeza, Juan Antonio, Guisasola, Albert, Ledezma, Pablo and Freguia, Stefano (2021). Implementation of a sulfide–air fuel cell coupled to a sulfate-reducing biocathode for elemental sulfur recovery. International Journal of Environmental Research and Public Health, 18 (11) 5571, 1-11. doi: 10.3390/ijerph18115571
Vassilev, Igor, Averesch, Nils J.H., Ledezma, Pablo and Kokko, Marika (2021). Anodic electro-fermentation: empowering anaerobic production processes via anodic respiration. Biotechnology Advances, 48 107728, 1-13. doi: 10.1016/j.biotechadv.2021.107728
Hernandez, Paula Andrea, Zhou, Miaomiao, Vassilev, Igor, Freguia, Stefano, Zhang, Yang, Keller, Jürg, Ledezma, Pablo and Virdis, Bernardino (2021). Selective extraction of medium-chain carboxylic acids by electrodialysis and phase separation. ACS Omega, 6 (11), 7841-7850. doi: 10.1021/acsomega.1c00397
Vieira Lemos, Rita, Tsujimura, Seiya, Ledezma, Pablo, Tokunou, Yoshihide, Okamoto, Akihiro and Freguia, Stefano (2021). Extracellular electron transfer by Microcystis aeruginosa is solely driven by high pH. Bioelectrochemistry, 137 107637, 107637. doi: 10.1016/j.bioelechem.2020.107637
Tokunou, Yoshihide, Vieira Lemos, Rita, Tsujimura, Seiya, Okamoto, Akihiro, Ledezma, Pablo and Freguia, Stefano (2021). Synechococcus and other bloom-forming cyanobacteria exhibit unique redox signatures. ChemElectroChem, 8 (2), 360-364. doi: 10.1002/celc.202001274
Diaz, M., Doederer, K., Keller, J., Cataldo, M., Donose, B. C., Ali, Y. and Ledezma, P. (2021). Towards in situ electro-generation of ferrate for drinking water treatment: a comparison of three low-cost sacrificial iron electrodes. Journal of Electroanalytical Chemistry, 880 114897, 114897. doi: 10.1016/j.jelechem.2020.114897
Jermakka, Johannes, Freguia, Stefano, Kokko, Marika and Ledezma, Pablo (2021). Electrochemical system for selective oxidation of organics over ammonia in urine. Environmental Science: Water Research and Technology, 7 (5), 942-955. doi: 10.1039/d0ew01057j
Brewster, Emma Thompson, Freguia, Stefano, Edraki, Mansour, Berry, Luke and Ledezma, Pablo (2020). Staged electrochemical treatment guided by modelling allows for targeted recovery of metals and rare earth elements from acid mine drainage. Journal of Environmental Management, 275 111266, 111266. doi: 10.1016/j.jenvman.2020.111266
Diaz, M., Cataldo, M., Ledezma, P., Keller, J. and Doederer, K. (2019). Unravelling the mechanisms controlling the electro-generation of ferrate using four iron salts in boron-doped diamond electrodes. Journal of Electroanalytical Chemistry, 854 113501, 113501. doi: 10.1016/j.jelechem.2019.113501
Freguia, Stefano, Logrieco, Maddalena E., Monetti, Juliette, Ledezma, Pablo, Virdis, Bernardino and Tsujimura, Seiya (2019). Self-powered bioelectrochemical nutrient recovery for fertilizer generation from human urine. Sustainability, 11 (19) 5490, 5490. doi: 10.3390/su11195490
Blázquez, Enric, Gabriel, David, Baeza, Juan Antonio, Guisasola, Albert, Freguia, Stefano and Ledezma, Pablo (2019). Recovery of elemental sulfur with a novel integrated bioelectrochemical system with an electrochemical cell. Science of The Total Environment, 677, 175-183. doi: 10.1016/j.scitotenv.2019.04.406
Monetti, Juliette, Ledezma, Pablo, Virdis, Bernardino and Freguia, Stefano (2019). Nutrient recovery by bio-electroconcentration is limited by wastewater conductivity. ACS Omega, 4 (1), 2152-2159. doi: 10.1021/acsomega.8b02737
Vassilev, Igor, Kracke, Frauke, Freguia, Stefano, Keller, Jurg, Krömer, Jens O., Ledezma, Pablo and Virdis, Bernardino (2019). Microbial electrosynthesis system with dual biocathode arrangement for simultaneous acetogenesis, solventogenesis and carbon chain elongation. Chemical Communications, 55 (30), 4351-4354. doi: 10.1039/c9cc00208a
Vassilev, Igor, Hernandez, Paula A., Batlle-Vilanova, Pau, Freguia, Stefano, Krömer, Jens O., Keller, Jürg, Ledezma, Pablo and Virdis, Bernardino (2018). Microbial electrosynthesis of isobutyric, butyric, caproic acids, and corresponding alcohols from carbon dioxide. ACS Sustainable Chemistry and Engineering, 6 (7), 8485-8493. doi: 10.1021/acssuschemeng.8b00739
Jermakka, Johannes, Thompson Brewster, Emma, Ledezma, Pablo and Freguia, Stefano (2018). Electro-concentration for chemical-free nitrogen capture as solid ammonium bicarbonate. Separation and Purification Technology, 203, 48-55. doi: 10.1016/j.seppur.2018.04.023
Ledezma, Pablo, Lu, Yang and Freguia, Stefano (2018). Electroactive haloalkaliphiles exhibit exceptional tolerance to free ammonia. FEMS microbiology letters, 365 (2) fnx260. doi: 10.1093/femsle/fnx260
Thompson Brewster, Emma , Pozo, Guillermo, Batstone, Damien J., Freguia, Stefano and Ledezma, Pablo (2018). A modelling approach to assess the long-term stability of a novel microbial/electrochemical system for the treatment of acid mine drainage. RSC Advances, 8 (33), 18682-18689. doi: 10.1039/c8ra03153c
Pozo, Guillermo, Pongy, Sebastien, Keller, Jürg, Ledezma, Pablo and Freguia, Stefano (2017). A novel bioelectrochemical system for chemical-free permanent treatment of acid mine drainage. Water Research, 126, 411-420. doi: 10.1016/j.watres.2017.09.058
Pozo, Guillermo, Lu, Yang, Pongy, Sebastien, Keller, Jurg, Ledezma, Pablo and Freguia, Stefano (2017). Selective cathodic microbial biofilm retention allows a high current-to-sulfide efficiency in sulfate-reducing microbial electrolysis cells. Bioelectrochemistry, 118, 62-69. doi: 10.1016/j.bioelechem.2017.07.001
Ledezma, Pablo, Jermakka, Johannes, Keller, Jurg and Freguia, Stefano (2017). Recovering nitrogen as a solid without chemical dosing: bio-electroconcentration for recovery of nutrients from urine. Environmental Science and Technology Letters, 4 (3), 119-124. doi: 10.1021/acs.estlett.7b00024
Darus, Libertus, Sadakane, Takuya, Ledezma, Pablo, Tsujimura, Seiya, Osadebe, Isioma, Leech, Donal, Gorton, Lo and Freguia, Stefano (2017). Redox-polymers enable uninterrupted day/night photo-driven electricity generation in biophotovoltaic devices. Journal of the Electrochemical Society, 164 (3), 3037-3040. doi: 10.1149/2.0091703jes
Pozo, Guillermo, Jourdin, Ludovic, Lu, Yang, Keller, Jurg, Ledezma, Pablo and Freguia, Stefano (2016). Cathodic biofilm activates electrode surface and achieves efficient autotrophic sulfate reduction. Electrochimica Acta, 213, 66-74. doi: 10.1016/j.electacta.2016.07.100
Darus, Libertus, Lu, Yang, Ledezma, Pablo, Keller, Jurg and Freguia, Stefano (2015). Fully reversible current driven by a dual marine photosynthetic microbial community. Bioresource Technology, 195, 248-253. doi: 10.1016/j.biortech.2015.06.055
Pozo, Guillermo, Jourdin, Ludovic, Lu, Yang, Ledezma, Pablo, Keller, Jurg and Freguia, Stefano (2015). Methanobacterium enables high rate electricity-driven autotrophic sulfate reduction. RSC Advances, 5 (109), 89368-89374. doi: 10.1039/C5RA18444D
Darus, Libertus, Ledezma, Pablo, Keller, Jurg and Freguia, Stefano (2015). Marine phototrophic consortia transfer electrons to electrodes in response to reductive stress. Photosynthesis Research, 127 (3), 347-354. doi: 10.1007/s11120-015-0193-y
Ledezma, Pablo, Kuntke, Philipp, Buisman, Cees J. N., Keller, Jurg and Freguia, Stefano (2015). Source-separated urine opens golden opportunities for microbial electrochemical technologies. Trends in Biotechnology, 33 (4), 214-220. doi: 10.1016/j.tibtech.2015.01.007
Ledezma, Pablo, Donose, Bogdan C., Freguia, Stefano and Keller, Jurg (2015). Oxidised stainless steel: a very effective electrode material for microbial fuel cell bioanodes but at high risk of corrosion. Electrochimica Acta, 158, 356-360. doi: 10.1016/j.electacta.2015.01.175
Pozo, Guillermo, Jourdin, Ludovic, Lu, Yang, Ledezma, Pablo, Keller, Jurg and Freguia, Stefano (2015). Erratum: Methanobacterium enables high rate electricity-driven autotrophic sulfate reduction. RSC Advances, 5 (111), 91821-91821. doi: 10.1039/c5ra90096d
Darus, Libertus, Ledezma, Pablo, Keller, Jürg and Freguia, Stefano (2014). Oxygen suppresses light-driven anodic current generation by a mixed phototrophic culture. Environmental Science and Technology, 48 (23), 14000-14006. doi: 10.1021/es5024702
Ledezma, Pablo, Degrenne, Nicolas, Bevilacqua, Pascal, Buret, François, Allard, Bruno, Greenman, John and Ieropoulos, Ioannis (2014). Dynamic polarisation reveals differential steady-state stabilisation and capacitive-like behaviour in microbial fuel cells. Sustainable Energy Technologies and Assessments, 5, 1-6. doi: 10.1016/j.seta.2013.10.008
Ieropoulos, Ioannis A., Ledezma, Pablo, Stinchcombe, Andrew, Papaharalabos, George, Melhuish, Chris and Greenman, John (2013). Waste to real energy: The first MFC powered mobile phone. Physical Chemistry Chemical Physics, 15 (37), 15312-15316. doi: 10.1039/c3cp52889h
Ledezma, Pablo, Stinchcombe, Andrew, Greenman, John and Ieropoulos, Ioannis (2013). The first self-sustainable microbial fuel cell stack. Physical Chemistry Chemical Physics, 15 (7), 2278-2281. doi: 10.1039/c2cp44548d
Degrenne, N., Ledezma, P., Bevilacqua, P., Buret, F., Allard, B., Greenman, J. and Ieropoulos, I. A. (2013). Bi-directional electrical characterisation of microbial fuel cell. Bioresource Technology, 128, 769-773. doi: 10.1016/j.biortech.2012.10.110
Ledezma, Pablo, Greenman, John and Ieropoulos, Ioannis (2013). MFC-cascade stacks maximise COD reduction and avoid voltage reversal under adverse conditions. Bioresource Technology, 134, 158-165. doi: 10.1016/j.biortech.2013.01.119
Ledezma, Pablo, Greenman, John and Ieropoulos, Ioannis (2012). Maximising electricity production by controlling the biofilm specific growth rate in microbial fuel cells. Bioresource Technology, 118, 615-618. doi: 10.1016/j.biortech.2012.05.054
Conference Papers
Ledezma, P., Monetti, J., Virdis, B., Keller, J. and Freguia, S. (2018). Decentralised nutrient recovery from urine without added power or chemicals. IWA Nutrient Removal and Recovery Conference 2018, Brisbane, QLD Australia, 18-21 November 2018.
Jermakka, Johannes, Thompson Brewster, Emma, Ledezma, Pablo and Freguia, Stefano (2017). Chemical free nitrogen capture from urine by precipitation as ammonium bicarbonate: overcoming limits of precipitation. General Meeting of the International Society for Microbial Electrochemistry and Technology, Lisbon, Portugal, 3 - 6 October 2017.
Ledezma, P., Keller, J. and Freguia, S. (2016). Decentralised nutrient recovery from urine without added power or chemicals. IWA World Water Congress 2016, Brisbane, QLD Australia, 9-13 October 2016.
Ledezma, P., Ieropoulos, I. and Greenman, J. (2010). Comparative analysis of different polymer materials for the construction of microbial fuel cell stacks. 14th International Biotechnology Symposium and Exhibition (IBS-2008), Rimini, Italy, 14 - 18 September 2010. Amsterdam, The Netherlands: Elsevier BV. doi: 10.1016/j.jbiotec.2010.08.373