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Department of Biological and Chemical Engineering

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Jensen, M. B., Poulsen, S., Jensen, B., Feilberg, A. & Kofoed, M. V. W. (2021). Selecting carrier material for efficient biomethanation of industrial biogas-CO₂ in a trickle-bed reactor. Journal of CO2 Utilization, 51, Article 101611. https://doi.org/10.1016/j.jcou.2021.101611

Kofoed, M. V. W., Jensen, M. B. & Ottosen, L. D. M. (2021). Biological upgrading of biogas through CO2 conversion to CH4. In Emerging Technologies and Biological Systems for Biogas Upgrading (pp. 321-362). Academic Press. https://doi.org/10.1016/B978-0-12-822808-1.00012-X

Kofoed, M. V. W. (2021). Mass transfer-based selection of carrier material to enhance biogas upgrading in a methanogenic biotrickling filter. Abstract from Progress in Biogas V.

Rasmussen, T. S., Streidl, T., Hitch, T. C. A., Wortmann, E., Deptula, P., Kofoed, M. V. W., Riedel, T., Neumann-Schaal, M., Hansen, M., Nielsen, D. S., Clavel, T. & Vogensen, F. K. (2021). Sporofaciens musculi gen. nov., sp. nov., a novel bacterium isolated from the caecum of an obese mouse. International Journal of Systematic and Evolutionary Microbiology, 71(3), Article 004673. https://doi.org/10.1099/ijsem.0.004673

Romio, C., Kofoed, M. V. W. & Møller, H. B. (2021). Digestate post-treatment strategies for additional biogas recovery: A review. Sustainability (Switzerland), 13(16), Article 9295. https://doi.org/10.3390/su13169295

Sieborg, M. U., Jensen, M. B., Jensen, B. & Kofoed, M. V. W. (2021). Effect of minimizing carrier irrigation on H₂ conversion in trickle bed reactors during ex situ biomethanation. Bioresource Technology Reports, 16, Article 100876. https://doi.org/10.1016/j.biteb.2021.100876

Chen, X., Ottosen, L. D. M. & Kofoed, M. V. W. (2019). How Low Can You Go: Methane Production of Methanobacterium congolense at Low CO2 Concentrations. Frontiers in Bioengineering and Biotechnology, 7, Article 00034. https://doi.org/10.3389/fbioe.2019.00034

Jensen, M. B., Strübing, D., de Jonge, N., Nielsen, J. L., Ottosen, L. D. M., Koch, K. & Kofoed, M. V. W. (2019). Stick or leave - Pushing methanogens to biofilm formation for ex situ biomethanation. Bioresource Technology, 291, Article 121784. https://doi.org/10.1016/j.biortech.2019.121784

Kofoed, M. V. W., Østedgaard-Munck, D. N., Agneessens, L., Bentien, A. & Ottosen, L. D. M. (2019). Engineering perspectives in microbial electrosynthesis. Poster session presented at AU Biological and Chemical Engineering
Conference
, Aarhus, Denmark.

Kofoed, M. V. W. (2019). In situ Methnation: Effect of Hydrogen on Acetate Production and Consumption Rates. Abstract from 16th IWA World Conference on Anaerobic Digestion, Delft, Netherlands.

Maegaard, K., Garcia-Robledo, E., Kofoed, M. V. W., Agneessens, L. M., de Jonge, N., Nielsen, J. L., Ottosen, L. D. M., Nielsen, L. P. & Revsbech, N. P. (2019). Biogas upgrading with hydrogenotrophic methanogenic biofilms. Bioresource Technology, 287, Article 121422. https://doi.org/10.1016/j.biortech.2019.121422

Ottosen, L. D. M., Feilberg, A., Kofoed, M. V. W. & Guldberg, L. B. (2019). Stimulering af biologisk omsætning. (Patent No. DK2017PA70868).

Agneessens, L., Ottosen, L. D. M., Andersen, M. M., Berg, C., Feilberg, A. & Kofoed, M. V. W. (2018). Parameters affecting acetate concentrations during in-situ biological hydrogen methanation. Bioresource Technology, 258, 33-40. https://doi.org/10.1016/j.biortech.2018.02.102

Agneessens, L., Ottosen, L. D. M., Andersen, M., Berg Olesen, C. & Kofoed, M. V. W. (2018). The relevance of homoacetogenesis during biomethanation of surplus electricity in anaerobic digesters. In Slude Management in Circular Economy: Abstract book

Dos Reis Vechi, N., Agneessens, L., Ottosen, L. D. M., Feilberg, A. & Kofoed, M. V. W. (2018). In situ biogas upgrading: contribution of homoacetogenesis to methane production. Poster session presented at European Biomass Conference and Exhibition, Copenhagen, Denmark. http://programme.eubce.com/abstract.php?idabs=15852&idses=776&idtopic=12

Jensen, D., Kofoed, M. V. W., Ottosen, L. D. M. & Rotaru, A.-E. (2018). Producing PHBs from renewable sources: Using surplus electricity to produce bioplastics from CO2. Poster session presented at
DMS ANNUAL CONGRESS 2018, Copenhagen, Denmark.

Jensen, M., Kofoed, M. V. W., Fischer, K., Voigt, N. V., Agneessens, L., Batstone, D. J. & Ottosen, L. D. M. (2018). Venturi-type injection system as a potential H2 mass transfer technology for full-scale in situ biomethanation. Applied Energy, 222, 840-846. https://doi.org/10.1016/j.apenergy.2018.04.034

Maegaard, K., Kofoed, M. V. W., Agneessens, L., Ottosen, L. D. M., Nielsen, L. P. & Revsbech, N. P. (2018). A methanogenic biofilm for biogas upgrading - Investigated on a microscale. Poster session presented at Biofilms 8, Aarhus, Denmark.

Agneessens, L., Ottosen, L. D. M., Andersen, M., Olesen, C., Feilberg, A. & Kofoed, M. V. W. (2017). Biomethanation of Surplus Electricity: Homoacetogenesis is a Dominant Pathway during Initial H2 Injections. Poster session presented at The 15th IWA World Conference on Anaerobic Digestion, Beijing, China.

Agneessens, L., Ottosen, L. D. M., Voigt, N. V., Lund Nielsen, J., de Jonge, N., Holst-Fischer, C. & Kofoed, M. V. W. (2017). In-Situ Biogas Upgrading with Pulse H2 Additions: The Relevance of Methanogen Adaption and Inorganic Carbon. Bioresource Technology, 233, 256-263. https://doi.org/10.1016/j.biortech.2017.02.016

Jensen, M., Fischer, K., Voigt, N., Agneessens, L., Kofoed, M. V. W., Pedersen, P., Holst-Fischer, C. & Ottosen, L. D. M. (2017). Development of a Venturi Gax-Mix System for in situ Biomethanation. Poster session presented at 13th International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering, Bruxelles, Belgium.

Gittel, A., Kofoed, M., Sørensen, K. B., Ingvorsen, K. & Schramm, A. (2012). Succession of Deferribacteres and Epsilonproteobacteria through a nitrate-treated high-temperature oil production facility. Systematic and Applied Microbiology, 35, 165-174. https://doi.org/10.1016/j.syapm.2012.01.003

Kofoed, M. V. W., Nielsen, D. A., Revsbech, N. P. & Schramm, A. (2012). Fluorescence in situ hybridization (FISH) detection of nitrite reductase transcripts (nirS mRNA) in Pseudomonas stutzeri biofilms relative to a microscale oxygen gradient. Systematic and Applied Microbiology, 35(8), 513-517. https://doi.org/10.1016/j.syapm.2011.12.001

Kofoed, M., Stief, P., Hauzmayer, S., Schramm, A. & Herrmann, M. (2012). Higher nitrate-reducer diversity in macrophyte-colonized compared to unvegetated freshwater sediment. Systematic and Applied Microbiology, 35(7), 465-472. https://doi.org/10.1016/j.syapm.2012.08.005

Mohanakrishnan, J., Kofoed, M., Barr, J., Yuan, Z., Schramm, A. & Meyer, R. L. (2011). Dynamic microbial response of sulfidogenic wastewater biofilm to nitrate. Applied Microbiology and Biotechnology, 91, 1647.

Gittel, A., Kofoed, M., Sørensen, K., Ingvorsen, K. & Schramm, A. (2010). Stimulation of potential nitrate reducers and their succession in a nitrate-treated high-temperature oil production facility. Poster session presented at 13th International Symposium on Microbial Ecology (ISME-13), Seattle, United States.

Kofoed, M. (2010). Diversity and Regulation of Nitrate-Reducing and Denitrifying Bacteria in Aquatic Systems. Det Naturvidenskabelige Fakultet, Aarhus Universitet.

Kofoed, M. V. W., Mohanakrishnan, J., Schramm, A. & Meyer, R. L. (2008). Effect of nitrate on activity and community structure of a sulfidogenic wastewater biofilm. Poster session presented at 12th International Symposium on Microbial Ecology: Microbial Diversity - Sustaining the Blue Planet, Cairns, Australia.

Kofoed, M. V., Stief, P., Poulsen, M. & Schramm, A. (2007). In situ detection of denitrifying bacteria by mRNA-targeted nucleic acid probes and catalyzed reporter deposition. Poster session presented at Annual Conference of the Association for General and Applied Microbiology (VAAM), Osnabrück, Germany.

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Revised 19.03.2026

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Michael Vedel Wegener Kofoed