World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
63
Citations
15367
World Ranking
8357
National Ranking
597

Engineering and Technology

D-Index
63
Citations
15484
World Ranking
1752
National Ranking
50

Harald Horn publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Harald Horn sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 300 publications — 76th percentile

76% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Harald Horn D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Harald Horn sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 63 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Harald Horn is affiliated with the Karlsruhe Institute of Technology in Germany and focuses research efforts primarily in the fields of environmental science and engineering. Their work spans across various subfields, including pollution, biomedical engineering, water science and technology, environmental engineering, and electrical and electronic engineering.

The scientist's research topics cover a range of areas related to water and environmental technologies. These include membrane separation technologies, wastewater treatment and nitrogen removal, microbial fuel cells and bioremediation, membrane-based ion separation techniques, pharmaceutical and antibiotic environmental impacts, anaerobic digestion and biogas production, and bacterial biofilms and quorum sensing.

Frequent publication venues for their work demonstrate a focus on journals that address environmental and water research topics. Notable venues include Separation and Purification Technology, Water Research, Membranes, The Science of The Total Environment, and Water.

Recent published papers highlight the scientist's contributions to wastewater treatment and environmental monitoring. These include:

  • MiDAS 4: A global catalogue of full-length 16S rRNA gene sequences and taxonomy for studies of bacterial communities in wastewater treatment plants (2022, Nature Communications)
  • Rethinking wastewater risks and monitoring in light of the COVID-19 pandemic (2020, Nature Sustainability)
  • Changes in the characteristics of dissolved organic matter during sludge treatment: A critical review (2020, Water Research)
  • The potential of fluorescent dyes-comparative study of Nile red and three derivatives for the detection of microplastics (2021, Analytical and Bioanalytical Chemistry)
  • Ferrate pretreatment-anaerobic fermentation enhances medium-chain fatty acids production from waste activated sludge: Performance and mechanisms (2022, Water Research)

Harald Horn collaborates regularly with a set of frequent coauthors, including Florencia Saravia, Michael Wagner, Johannes Gescher, Andrea Hille-Reichel, and Max Hackbarth, reflecting a consistent network of research partnerships in related domains.

Best Publications

  • Full-scale partial nitritation/anammox experiences--an application survey

    Susanne Lackner;Eva M. Gilbert;Siegfried E. Vlaeminck;Adriano Joss

  • Opportunities in rainwater harvesting

    B. Helmreich;H. Horn

  • Low Temperature Partial Nitritation/Anammox in a Moving Bed Biofilm Reactor treating low strength Wastewater

    Eva Gilbert;Shelesh Agrawal;Søren Michael Karst;Harald Horn

  • Determination of microplastic polyethylene (PE) and polypropylene (PP) in environmental samples using thermal analysis (TGA-DSC)

    Marius Majewsky;Hajo Bitter;Elisabeth Eiche;Harald Horn

  • Extracellular polymeric substances of biofilms: Suffering from an identity crisis

    Thomas Seviour;Nicolas Derlon;Morten Simonsen Dueholm;Hans-Curt Flemming

  • Runoff pollutants of a highly trafficked urban road ― Correlation analysis and seasonal influences

    Brigitte Helmreich;Rita Hilliges;Alexander Schriewer;Harald Horn

  • Modelling the energy balance of an anaerobic digester fed with cattle manure and renewable energy crops.

    Manfred Lübken;Marc Wichern;Markus Schlattmann;Andreas Gronauer

  • Aerobic biodegradation of the sulfonamide antibiotic sulfamethoxazole by activated sludge applied as co-substrate and sole carbon and nitrogen source.

    Elisabeth Müller;Walter Schüssler;Harald Horn;Hilde Lemmer

  • Anaerobic submerged membrane bioreactor (AnSMBR) for municipal wastewater treatment under mesophilic and psychrophilic temperature conditions

    David Martinez-Sosa;Brigitte Helmreich;Thomas Netter;Stefania Paris

  • Comparing different reactor configurations for Partial Nitritation/Anammox at low temperatures.

    Eva M. Gilbert;Shelesh Agrawal;Thomas Schwartz;Harald Horn

  • Rethinking wastewater risks and monitoring in light of the COVID-19 pandemic

    Anne Bogler;Aaron Packman;Alex Furman;Amit Gross

  • Volumetric measurements of bacterial cells and extracellular polymeric substance glycoconjugates in biofilms

    C. Staudt;H. Horn;D. C Hempel;T. R. Neu

  • Simulation of growth and detachment in biofilm systems under defined hydrodynamic conditions

    Harald Horn;Helmut Reiff;Eberhard Morgenroth

  • Combined use of confocal laser scanning microscopy (CLSM) and Raman microscopy (RM): Investigations on EPS – Matrix

    Michael Wagner;Natalia P. Ivleva;Christoph Haisch;Reinhard Niessner

  • Heavy metal removal in anaerobic semi-continuous stirred tank reactors by a consortium of sulfate-reducing bacteria.

    Hoa T.Q. Kieu;Elizabeth Müller;Harald Horn

  • Biogas from grass silage – Measurements and modeling with ADM1

    Konrad Koch;Manfred Lübken;Tito Gehring;Marc Wichern

  • Screening and monitoring microbial xenobiotics’ biodegradation via rapid, inexpensive and easy to perform microplate

    B. Herzog;H. Lemmer;B. Helmreich;H. Horn

  • Influence of growth conditions on biofilm development and mass transfer at the bulk/biofilm interface.

    Stefan Wäsche;Harald Horn;Dietmar C Hempel

  • Aerobic sludge granulation in a full-scale sequencing batch reactor.

    Jun Li;Li-Bin Ding;Ang Cai;Guo-Xian Huang

  • Towards a nondestructive chemical characterization of biofilm matrix by Raman microscopy

    Natalia P. Ivleva;Michael Wagner;Harald Horn;Reinhard Niessner

Frequent Co-Authors

Michael Wagner
Michael Wagner TU Dresden
Thomas R. Neu
Thomas R. Neu Helmholtz Centre for Environmental Research
Konrad Koch
Konrad Koch Technical University of Munich
Thomas Kolb
Thomas Kolb Northern Arizona University
Dimosthenis Trimis
Dimosthenis Trimis Karlsruhe Institute of Technology
Eberhard Morgenroth
Eberhard Morgenroth Swiss Federal Institute of Aquatic Science and Technology
Thomas Schwartz
Thomas Schwartz Karlsruhe Institute of Technology
Christoph Haisch
Christoph Haisch Technical University of Munich
Fritz H. Frimmel
Fritz H. Frimmel Karlsruhe Institute of Technology
Cristian Picioreanu
Cristian Picioreanu King Abdullah University of Science and Technology

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