Project

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

Publisher

Supervisor

Location

Greater Copenhagen area

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._

Search in postings
Contact

Company / Organization

DTU Miljø

Name

Barth F. Smets

Position

Professor

Mail

bfsm@env.dtu.dk

Supervisor info

MSc in Biotechnology

Supervisor

Barth F. Smets

Co-supervisors

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

ECTS credits

10 - 45

Type

Final project, Other, BSc project, Course project, MSc thesis, Special course

MSc in Chemical and Biochemical Engineering

Supervisor

Barth F. Smets

Co-supervisors

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

ECTS credits

10 - 45

Type

Final project, Other, BSc project, Course project, MSc thesis, Special course

MSc in Environmental Engineering

Supervisor

Barth F. Smets

Co-supervisors

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

ECTS credits

10 - 45

Type

Final project, Other, BSc project, Course project, MSc thesis, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

Find us here

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

All vacant positions
 

loading..