Per Halkjær Nielsen

Complete nitrification by Nitrospira bacteria

Holger Daims, Petra Pjevac, Ping Han et al. · Nature · 2015 · 2.7K citations · Full text

Life Sciences, Biotechnology, Microbiology +14

Extraction of extracellular polymers from activated sludge using a cation exchange resin

B. Frølund, Rikke Palmgren, Kristian Keiding et al. · Water Research · 1996 · 2.5K citations

Engineering, Bioengineering, Biotechnology +14

Complete nitrification by a single microorganism

Maartje A. H. J. van Kessel, Daan R. Speth, Mads Albertsen et al. · Nature · 2015 · 1.9K citations · Full text

Engineering, Environmental Engineering, Microbiology +14

Genome sequences of rare, uncultured bacteria obtained by differential coverage binning of multiple metagenomes

Mads Albertsen, Philip Hugenholtz, Adam Skarshewski et al. · Nature Biotechnology · 2013 · 1.3K citations

Life Sciences, Bioinformatics, Microbiology +16

Enzymatic activity in the activated-sludge floc matrix

B. Fr olund, Thomas Griebe, Per Halkjær Nielsen · Applied Microbiology and Biotechnology · 1995 · 1.2K citations

Engineering, Biotechnology, Environmental Engineering +14