Center for Microbial Communities

About CMC

The overall research mission of the Center for Microbial Communities (CMC) is to provide new fundamental understanding of structure and function of microbial communities in engineered and natural habitats. This provides insight into improved management of various microbial processes and advises how microbial communities can solve, in a sustainable way, some of the grand challenges the society faces.

CMC has currently approx. 35 researchers, primarily from Department of Chemistry and Bioscience, AAU. We have a close collaboration with researchers from Department of Microbiology and Ecosystem Science, University of Vienna, Austria, and Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, besides many other national and international key institutions in the field.

The Center for Microbial Communities (CMC) was founded in 2013 as an interdisciplinary research center funded by Aalborg University, Danish and German Research councils, the EU and additional support from industry and foundations

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Latest publications

Cokro, A.A., Y. Law, R.B.H. Williams, Y. Cao, P.H. Nielsen, and S. Wuertz (2017): Non-denitrifying polyphosphate accumulating organisms obviate requirement for anaerobic condition. Water Research 111: 393-403.

McIlroy, S.J., R.H. Kirkegaard, B. McIlroy, M. Nierychlo, J.M. Kristensen, S.M. Karst, M. Albertsen and P.H. Nielsen (2017): MiDAS 2.0: An ecosystem-specific taxonomy and online database for the organisms of wastewater treatment systems expanded for anaerobic digester groups. Database 2017 doi:10.1093/database/bax016.

Neufeld, J., L. Sauder, M. Albertsen, K. Engel, J. Schwarz, P. Nielsen, and M. Wagner (2017): Cultivation and characterization of Candidatus Nitrosocosmicus exaquare, an ammonia-oxidizing archaeon from a municipal wastewater treatment system. The ISME Journal doi: 10.1038/ismej.2016.192.

Rubio-Rincón, F.J, , L. Welles, C.M. Lopez-Vazquez, M. Nierychlo, B. Abbas, M. Geleijnse, P.H. Nielsen, M.C.M. van Loosdrecht, D. Brdjanovi (2017). Long-term effects of sulphide on the enhanced biological removal of phosphorus: The symbiotic role of Thiothrix caldifontis. Water Research 116: 53-64.

Stokholm-Bjerregaard, M., S.J. McIlroy, M. Nierychlo, S.M. Karst, M. Albertsen, P.H. Nielsen (2017). A critical assessment of the microorganisms proposed to be important to enhanced biological phosphorus removal in full-scale wastewater treatment systems. Frontiers in Microbiology 8:718. Doi: 10.3389/fmicb.2017.00718.

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Head of Center: Per Halkjær Nielsen
Tel.: (45) 9940 8503
Mobile: (45) 2173 5089

Scientific Secretary: Marta Nierychlo
Mobile: (45) 6172 3721

Center for Microbial Communities
Aalborg University
Fredrik Bajers Vej 7H
9220 Aalborg East

Faculty and Staff

Open positions

At CMC we are always seeking people who are passionate about microbial ecology. If you see yourself as part of CMC you are always welcome to send us your CV along with a few words about yourself to We will store your request and contact you if we need someone with your competences. 

At present we have the following open positions: 

Public Resources