Projekt

Gather up for a nitrogen feast! Novel Microbes for Efficient N removal

Udbyder

Vejleder

Sted

København og omegn

Optimizing autotrophic nitrogen removal from wastewaters - using novel bioreactors and N-DAMO or Anammox microbes 

Autotrophic nitrogen removal is a novel bioprocess with significant advantages over the conventional process. It combines the conversion of ammonium to nitrite (partial nitritation) with the conversion of the nitrite formed and the remaining ammonium to nitrogen gas (anaerobic ammonium oxidation or anammox - or in case methane is available - the conversion of nitrite to nitrogen gase coupled to methane oxidation aka N -DAMO ). It demands limited amount of oxygen (gotta love anaerobes!) and requires no external carbon (gotta love autotrophs!). Combining partial nitritation and anammox or N- DAMO activity in a single reactor brings further advantages regarding conversion efficiencies and lower volume requirements. Bioaggregate formation, or granulation in our case, has the benefit of retaining the involved microorganisms in a single reactor. Within bioaggregates, the delicate slow-growing anaerobic bacteria can be surrounded by protective layers of aerobic bacteria. An alternative is to grow these microbes as layers on top of each other on biofilms (as we can do in MABR reactors). But how do these communities gather up together and why would they ever want to disintegrate? How can we operate the system to make sure that they stay together and perform efficiently? Since aerobic and anoxic communities are simultaneously present in the system, aeration degree and regime is a critical operational parameter. Correspondingly, different aeration conditions will be applied in lab-scale reactors; biofilm/granule formation will be observed and correlated to process performance. The performance will be monitored for N-species at system level as well as in-situ via microelectrode and respirometry measurements. The formed biofilms/granules will be analyzed for composition and architecture using molecular tools._

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Kontakt

Virksomhed/organisation

DTU Miljø

Navn

Barth F. Smets

Stilling

Professor

Mail

bfsm@env.dtu.dk

Vejleder-info

Kandidatuddannelsen i Bioteknologi

Vejleder

Barth F. Smets

Medvejledere

Marlene Mark Jensen, Borja Valverde Pérez, Carlos Domingo-Felez

ECTS-point

10 - 45

Type

Afgangsprojekt, Andet, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Kemisk og Biokemisk Teknologi

Vejleder

Barth F. Smets

Medvejledere

Marlene Mark Jensen, Borja Valverde Pérez, Carlos Domingo-Felez

ECTS-point

10 - 45

Type

Afgangsprojekt, Andet, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Miljøteknologi

Vejleder

Barth F. Smets

Medvejledere

Marlene Mark Jensen, Borja Valverde Pérez, Carlos Domingo-Felez

ECTS-point

10 - 45

Type

Afgangsprojekt, Andet, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

OM DTU

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 10.000 studerende uddanner sig her til fremtiden, og 5.700 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

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Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby


45 25 25 25

dtu@dtu.dk

CVR-nr. 30 06 09 46

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