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Per Halkjær Nielsen

Department of Chemistry and Bioscience

110H-index
875Paper Count
4.7WCitation Count
Published Papers 245
Publication Date
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Correction: Global abundance patterns, diversity, and ecology of Patescibacteria in wastewater treatment plants
errMicrobiome
IF12.7
err2026-01-05
err0
errOAAI
errHuifeng Hu; Jannie Munk Kristensen; Craig William Herbold; Petra Pjevac; Katharina Kitzinger; Bela Hausmann; Morten Kam Dahl Dueholm; Per Halkjaer Nielsen; Michael Wagner
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The Microflora Danica atlas of Danish environmental microbiomes
errNature
IF48.5
err2025-12-03
err0
errOAAI
errC. M. Singleton; T. B. N. Jensen; F. Delogu; K. S. Knudsen; E. A. Sørensen; V. R. Jørgensen; S. M. Karst; Y. Yang; M. Sereika; F. Petriglieri; S. Knutsson; S. M. Dall; R. H. Kirkegaard; J. M. Kristensen; C. K. Overgaard; B. J. Woodcroft; D. R. Speth; S. T. N. Aroney; M. Wagner; M. K. D. Dueholm; P. H. Nielsen; M. Albertsen
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errSave
Predicting microbial community structure and temporal dynamics by using graph neural network models
errNature Communications
IF15.7
err2025-10-14
err0
errOAAI
errKasper Skytte Andersen; Kai Zhao; Alexander de Linde Agerskov; Christian Bro Sørensen; Trine Juhl Holmager; Marta Nierychlo; Miriam Peces; Chenjuan Guo; Per Halkjær Nielsen
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Global insights into extracellular polymeric substances from activated sludge: Yield, composition, and microbial communities
errWater Research
IF12.4
err2025-10-03
err0
errOAAI
errStefan De Bruin; Marie Riisgaard-Jensen; Susan Hove Hansen; Mark C.M. Van Loosdrecht; Per Halkjær Nielsen; Yuemei Lin
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errSave
Soil pH and structure shape prokaryotic communities in lowland soils across Denmark
errGeoderma Regional
IF3.3
err2025-09-29
err0
PREAI
errAnne-Cathrine Storgaard Danielsen; Charles Pesch; Cecilie Hermansen; Caitlin Margaret Singleton; Thomas Bygh Nymann Jensen; Per Halkjær Nielsen; Mogens Humlekrog Greve; Arka Rudra; Hamed Sanei; Peter Lystbæk Weber; Emmanuel Arthur; Sebastian Gutierrez; Per Møldrup; Signe Normand; Lis Wollesen de Jonge
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errSave
Assessing antimicrobial resistance connectivity across One Health sectors
errNATURE WATER
IF0
err2025-09-01
err1
PREAI
errLi, Liguan; Li, Bing; Yin, Xiaole; Xia, Yu; Yang, Yu; Xu, Xiaoqing; Lam, Tommy Tsan-Yuk; Leung, Kenneth M. Y.; Xu, Fujie; Zhang, Xuxiang; Guo, Jianhua; Schmitt, Heike; Wright, Gerard D.; Midega, Janet; Bezuidenhout, Carlos; Picao, Renata C.; Ahammad, Shaikh Z.; Smalla, Kornelia; Djordjevic, Steven P.; Pruden, Amy; Vikesland, Peter; Frigon, Dominic; Walsh, Fiona; Berendonk, Thomas U.; Corno, Gianluca; Fatta-Kassinos, Despo; Cha, Chang-Jun; Ashbolt, Nicholas; Ying, Guangguo; Luo, Yi; Wang, Yang; Shen, Jianzhong; Zhang, Yu; Yang, Min; Li, Xiangdong; Hu, Baolan; Zhu, Lizhong; Wu, Yongning; Tang, Song; Kan, Biao; Zhu, Yong-Guan; Smets, Barth F.; Graham, David; Honda, Ryo; Cytryn, Eddie; Donner, Erica; Nielsen, Per Halkjaer; van Loosdrecht, Mark; Gillings, Michael R.; Gaze, William; Manaia, Celia M.; Alvarez, Pedro J. J.; Blaser, Martin J.; Topp, Edward; Zhang, Tong
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Genome-resolved long-read sequencing expands known microbial diversity across terrestrial habitats
errNature Microbiology
IF19.4
err2025-07-24
err0
errOAAI
errMantas Sereika; Aaron James Mussig; Chenjing Jiang; Kalinka Sand Knudsen; Thomas Bygh Nymann Jensen; Francesca Petriglieri; Yu Yang; Vibeke Rudkjøbing Jørgensen; Francesco Delogu; Emil Aarre Sørensen; Per Halkjær Nielsen; Caitlin Margaret Singleton; Philip Hugenholtz; Mads Albertsen
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Biokinetic soft-sensing using Thiothrix and Ca. Microthrix bacteria to calibrate secondary settling, aeration and N2O emission digital twins
errWATER RESEARCH
IF12.4
err2025-05-01
err0
PREAI
errBakos, Vince; Qiu, Yuge; Nierychlo, Marta; Nielsen, Per Halkjaer; Plosz, Benedek Gy.
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errSave
Wastewater biorefineries: exploring biological phosphorus removal and integrated recovery solutions
errCURRENT OPINION IN BIOTECHNOLOGY
IF7
err2025-04-01
err0
PREAI
errRoy, Samarpita; Petersen, Jette F.; Mueller, Sarah; Kondrotaite, Zivile; van Loosdrecht, Mark; Wintgens, Thomas; Nielsen, Per H.
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errSave
Soil Water Repellency in Natural and Semi-Natural Habitats: A Nexus Between Abiotic Factors and Prokaryotic Communities
errEUROPEAN JOURNAL OF SOIL SCIENCE
IF3.8
err2025-03-01
err0
errOAAI
errDanielsen, Anne-Cathrine Storgaard; Hermansen, Cecilie; Weber, Peter Lystbaek; Mikstas, Deividas; Pesch, Charles; de Carvalho Gomes, Lucas; Gutierrez, Sebastian; Nielsen, Per Halkjaer; Greve, Mogens Humlekrog; Moldrup, Per; Normand, Signe; de Jonge, Lis Wollesen
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Diversity and abundance of filamentous and non-filamentous Leptothrix in global wastewater treatment plants
errAPPLIED AND ENVIRONMENTAL MICROBIOLOGY
IF3.7
err2025-02-14
err0
errOAAI
errSuazo, Karina Seguel; Nierychlo, Marta; Kondrotaite, Zivile; Petriglieri, Francesca; Peces, Miriam; Singleton, Caitlin; Dries, Jan; Nielsen, Per H.
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Fluorescently probing anaerobic digester sludge: Measuring single-cell anabolic activity in methanogens (Methanosarcina and Methanothermobacter) with deuterium-labeled Raman analysis
errSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
IF4.6
err2025-02-01
err0
PREAI
errFernando, Eustace; Nielsen, Per Halkjaer; Nielsen, Jeppe Lund
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Holistic assessment of management strategies and technological solutions handling anaerobic digester supernatants in wastewater treatment plants
errCHEMICAL ENGINEERING JOURNAL
IF13.2
err2025-02-01
err2
errOAAI
errFlores-Alsina, Xavier; Vangsgaard, Anna Katrine; Uri-Carreno, Nerea; Nielsen, Per H.; Gernaey, Krist, V
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Sewer microbiomes shape microbial community composition and dynamics of wastewater treatment plants
errThe ISME Journal
IF0
err2025-01-02
err0
PREAI
errMarie Riisgaard-Jensen; Rodrigo Maia Valença; Miriam Peces; Per Halkjær Nielsen
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errSave
Diversity and physiology of abundant Rhodoferax species in global wastewater treatment systems
errSYSTEMATIC AND APPLIED MICROBIOLOGY
IF4.2
err2025-01-01
err1
errOAAI
errPetersen, Jette F.; Valk, Laura C.; Verhoeven, Maarten D.; Nierychlo, Marta A.; Singleton, Caitlin M.; Dueholm, Morten K. D.; Nielsen, Per H.
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Quantifying, predicting, and mitigating nitrous oxide emissions in a full-scale partial nitritation/anammox reactor treating reject water
errWATER RESEARCH
IF12.4
err2025-01-01
err4
errOAAI
errFlores-Alsina, Xavier; Vangsgaard, Anna Katrine; Uri-Carreno, Nerea; Nielsen, Per H.; Gernaey, Krist V.
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Proposal of Patescibacterium danicum gen. nov., sp. nov. in the ubiquitous bacterial phylum Patescibacteriota phyl. nov.
errISME COMMUNICATIONS
IF6.1
err2024-11-19
err0
errOAAI
errDutkiewicz, Zuzanna; Singleton, Caitlin M.; Sereika, Mantas; Villada, Juan C.; Mussig, Aaron J.; Chuvochina, Maria; Albertsen, Mads; Schulz, Frederik; Woyke, Tanja; Nielsen, Per H.; Hugenholtz, Philip; Rinke, Christian
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The predicted secreted proteome of activated sludge microorganisms indicates distinct nutrient niches
errMSYSTEMS
IF4.6
err2024-10-22
err2
errOAAI
errWasmund, Kenneth; Singleton, Caitlin; Dueholm, Morten Kam Dahl; Wagner, Michael; Nielsen, Per Halkjaer
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Rethinking characterization, application, and importance of extracellular polymeric substances in water technologies
errCURRENT OPINION IN BIOTECHNOLOGY
IF7
err2024-10-01
err0
errOAAI
errZahra, Sasmitha A.; Persiani, Rozalia; Dueholm, Morten K. D.; van Loosdrecht, Mark; Nielsen, Per H.; Seviour, Thomas W.; Lin, Yuemei
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errSave
Microbial extracellular polymeric substances in the environment, technology and medicine
errNATURE REVIEWS MICROBIOLOGY
IF103.3
err2024-09-27
err2
PREAI
errFlemming, Hans-Curt; van Hullebusch, Eric D.; Little, Brenda J.; Neu, Thomas R.; Nielsen, Per H.; Seviour, Thomas; Stoodley, Paul; Wingender, Jost; Wuertz, Stefan
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Research Directions

No research directions
Co-authors
Cooperation Journals
M
Mark C.M. van Loosdrecht
H-index: 172 · Papers: 1.3K
J
James M. Tiedje
H-index: 171 · Papers: 770
J
Jaap S. Sinninghe Damsté
H-index: 160 · Papers: 1.7K
Y
Yong‐Guan Zhu
H-index: 159 · Papers: 1.6K
R
Rudolf Amann
H-index: 154 · Papers: 665
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