Joana Fradinho

Senior Researcher


ORCID iD: 0000-0001-7192-5367

ResearchGate: Joana_Fradinho

LinkedIn: joana-fradinho-24aa349

Office 612 – Chemistry Department,

Ph: +351 212 948 300, ext. 10931



(2013) PhD in Biochemical and Chemical Engineering - Faculdade de Ciências e Tecnologia/Universidade Nova de Lisboa


Research interests

Development of microbial photosynthetic processes to reduce environmental pollution in the areas of biodegradable plastics production, wastewater treatment, CO2 fixation, biogas upgrading and phosphate recovery.


Relevant publications 

  • Almeida J, Serrano E, Rogalla F, Fradinho JC, Oehmen A, Reis MAM (2024) Polyhydroxyalkanoates production in purple phototrophic bacteria ponds: A breakthrough in outdoor pilot-scale operation. Science of The Total Environment, 912, 168899. DOI: 10.1016/j.scitotenv.2023.168899
  • Almeida J, Serrano E, Lara E, Fradinho JC, Oehmen A, Reis MAM (2023) Ammonia impact on the selection of a phototrophic - chemotrophic consortium for polyhydroxyalkanoates production under Light-Feast / Dark-Aerated-Famine Conditions. Water Research, 244, 120450. DOI: 10.1016/j.watres.2023.120450
  • Carvalho VCF, Fradinho JC, Oehmen A, Reis MAM (2023). Long term operation of a phototrophic biological nutrient removal system: Impact of CO2 concentration and light exposure on process performance. Journal of Environmental Management 334, 117490. DOI: 10.1016/j.jenvman.2023.117490
  • Carvalho VCF, Kessler M, Fradinho JC, Oehmen A, Reis MAM (2021) Achieving nitrogen and phosphorus removal at low C/N ratios without aeration through a novel phototrophic process. Science of the Total Environment, 793, 148501. DOI: 10.1016/j.scitotenv.2021.148501
  • Almeida J, Serrano E, Fernandez M, Fradinho JC, Oehmen A, Reis MAM (2021) Polyhydroxyalkanoates production from fermented domestic wastewater using phototrophic mixed cultures. Water Research, 197, 117101. DOI: 10.1016/j.watres.2021.117101
  • Fradinho JC, Allegue LD, Ventura M, Melero JA, Reis MAM, Puyol D (2021) Up-scale challenges on biopolymer production from waste streams by Purple Phototrophic Bacteria mixed cultures: A critical review. Bioresource Technology, 327, 124820. DOI: 10.1016/j.biortech.2021.124820
  • Fradinho, J. C.,  Oehmen, A., & Reis, M. A. M. (2019). Improving polyhydroxyalkanoates production in phototrophic mixed cultures by optimizing accumulator reactor operating conditions. International Journal of Biological Macromolecules, 126, 1085–1092. DOI: 10.1016/j.ijbiomac.2018.12.270
  • Carvalho, V. C. F., Freitas, E. B., Silva, P. J., Fradinho, J. C., Reis, M. A. M., & Oehmen, A. (2018). The impact of operational strategies on the performance of a photo-EBPR system. Water Research, 129, 190–198. DOI: 10.1016/j.watres.2017.11.010
  • Fradinho, J. C., Reis, M. A. M., & Oehmen, A. (2016). Beyond feast and famine: Selecting a PHA accumulating photosynthetic mixed culture in a permanent feast regime. Water Research, 105, 421–428. DOI: 10.1016/j.watres.2016.09.022
  • Fradinho, J. C., Oehmen, A., & Reis, M. A. M. (2014). Photosynthetic mixed culture polyhydroxyalkanoate (PHA) production from individual and mixed volatile fatty acids (VFAs): Substrate preferences and co-substrate uptake. Journal of Biotechnology, 185, 19–27. DOI: 10.1016/j.jbiotec.2014.05.035
  • Oehmen, A., Vergel, D., Fradinho, J., Reis, M. A. M., Crespo, J. G., & Velizarov, S. (2014). Mercury removal from water streams through the ion exchange membrane bioreactor concept. Journal of Hazardous Materials, 264, 65–70. DOI: 10.1016/j.jhazmat.2013.10.067
  • Fradinho, J. C., Domingos, J. M. B., Carvalho, G., Oehmen, A., & Reis, M. A. M. (2013). Polyhydroxyalkanoates production by a mixed photosynthetic consortium of bacteria and algae. Bioresource Technology, 132, 146–153. DOI: 10.1016/j.biortech.2013.01.050
  • Oehmen, A., Valerio, R., Llanos, J., Fradinho, J., Serra, S., Reis, M. A. M., & Velizarov, S. (2011). Arsenic removal from drinking water through a hybrid ion exchange membrane - Coagulation process. Separation and Purification Technology, 83(1), 137–143. DOI: 10.1016/j.seppur.2011.09.02
Book Chapters

  • Fradinho JC, Carvalho VCF, Reis MAM (2021) New Phototrophic Factories for Resource Recovery. In: Moura JJG, Moura I, Maia LB (eds) Enzymes for Solving Humankind's Problems. Springer, Cham. DOI: 10.1007/978-3-030-58315-6_13

  • Fradinho JC, Oehmen A, Reis MAM. Process of selection of photosynthetic organisms for the production of polyhydroxyalkanoates. Portugal Patent Nº 108961. 2019 Dec 10.