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Reassessing phosphorus removal by employing classical and fermentative metabolism of polyphosphate accumulating organisms in complex carbon environments

Descrizione del progetto

Una ricerca chiarisce come i batteri metabolizzano le sostanze nutritive nelle acque reflue

La rimozione biologica del fosforo intensificata rappresenta un modo sostenibile ed economico per la sua eliminazione dalle acque reflue. Il processo è eseguito da un gruppo di batteri eterotrofi, denominati organismi che accumulano polifosfati (PAO, polyphosphate-accumulating organisms), che assorbono più fosforo nelle loro cellule di quanto farebbero normalmente. I PAO manifestano un comportamento diverso durante l’assimilazione o la fermentazione di substrati di carbonio complessi, come ad esempio amminoacidi e zuccheri. Il progetto REMaP-Carbon, finanziato dal programma di azioni Marie Skłodowska-Curie, esaminerà la versatilità metabolica dei PAO impiegando tecniche di etichettatura degli isotopi, analisi della caratterizzazione cinetica e stechiometrica e modelli metabolici.

Obiettivo

The Urban Wastewater Treatment Directive adopted by the EU acknowledges enhanced biological phosphorus removal (EBPR) as a sustainable process that prevents eutrophication, saves marine assets estimated at €500 billion and counters depletion of phosphorus ore. EBPR is mediated microbially by polyphosphate accumulating organisms (PAOs), but our understanding is limited to identifying Ca. Accumulibacter as a globally dominant PAO that utilises volatile fatty acids as carbon substrate. However, a variety of PAOs exists in full-scale wastewater treatment plants (WWTP) that display metabolic versatility in the assimilation or fermentation of complex carbon substrates such as amino acids and sugars. The REMaP-Carbon action will explore the metabolic versatility of PAOs using complex carbon substrates. An interdisciplinary approach involving engineering principles, multi-omics analyses, and advanced modelling techniques will be implemented. Under the supervision of Prof. Mark van Loosdrecht, TU Delft, I will study the metabolism of PAOs using isotope labelling techniques, kinetic and stoichiometric characterisation, and metabolic models. During the secondment at Aalborg University with Prof. Per Nielsen, I will gain complementary skills in bioinformatics and microspectroscopy techniques. To extend EBPR application to complex carbon substrates in WWTPs, an industrial placement is planned at the end of the fellowship to exploit research outputs with Royal HaskoningDHV. In leading international and intersectoral collaborations, I aim to develop research skills, project management and communication abilities to improve overall effectiveness as a researcher. Independently leading this action will provide me experience and confidence to undertake ambitious projects and collaborations in my academic career. Overall, this action will contribute to Europe’s knowledge-based economy by defining how PAOs turn the wheels of the biogeochemical phosphorus cycle in natural environments.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Invito a presentare proposte

(si apre in una nuova finestra) HORIZON-MSCA-2021-PF-01

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Coordinatore

TECHNISCHE UNIVERSITEIT DELFT
Contributo netto dell'UE
€ 254 330,40
Costo totale
Nessun dato

Partner (2)