World's Best Scientists 2026 revealed!
Jan A. Oleszkiewicz

Jan A. Oleszkiewicz

D-Index & Metrics

Environmental Sciences

D-Index
48
Citations
8504
World Ranking
5548
National Ranking
238

Jan A. Oleszkiewicz publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Jan A. Oleszkiewicz sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 259 publications — 79th percentile

79% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Jan A. Oleszkiewicz D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Jan A. Oleszkiewicz sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 48 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Research.com Recognitions

  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering

Overview

Jan A. Oleszkiewicz is affiliated with the University of Manitoba in Canada and works primarily within the field of Environmental Science. Their research focuses on key areas such as wastewater treatment and nitrogen removal, constructed wetlands for wastewater treatment, membrane separation technologies, microbial fuel cells and bioremediation, water treatment and disinfection, biofuel production and bioconversion, and viral infectious diseases and gene expression in insects.

Their work spans various subfields within Environmental Science, including pollution, health, toxicology and mutagenesis, industrial and manufacturing engineering, water science and technology, and environmental engineering.

Frequent co-authors collaborating with Jan A. Oleszkiewicz include Tanner R. Devlin, Alessandro di Biase, Maciej S. Kowalski, Yanan Ren, and Miguel Uyaguari.

The scientist has published extensively in venues such as:

  • Journal of Water Process Engineering
  • Chemosphere
  • The Science of The Total Environment
  • Bioresource Technology Reports
  • SSRN Electronic Journal

Recent papers provide insight into the scientist's focus on biofilm reactors, granular sludge, and nutrient removal technologies:

  • Physicochemical methods for biofilm removal allow for control of biofilm retention time in a high rate MBBR, 2020, Environmental Technology
  • Aerobic granular sludge treating anaerobically pretreated brewery wastewater at different loading rates, 2020, Water Science & Technology
  • Modeling of the attached and suspended biomass fractions in a moving bed biofilm reactor, 2021, Chemosphere
  • Performance and recovery of nitrifying biofilm after exposure to prolonged starvation, 2021, Chemosphere
  • Simultaneous biological nutrients removal from wastewater with high ammonium and phosphorus loading using aerobic granular sludge, 2024, Journal of Water Process Engineering

In addition to journal articles, Jan A. Oleszkiewicz has contributed to book publications, including a work published by the Water Environment Federation titled DO/TAN and FA Based Process Control for Mainstream Partial Nitritation in 2020.

Awards include recognition from The Canadian Academy of Engineering.

Best Publications

  • High Solid Anaerobic Digestion of Chicken Manure

    G. Bujoczek;J. Oleszkiewicz;R. Sparling;S. Cenkowski

  • Moving bed biofilm reactor technology in municipal wastewater treatment: A review.

    Alessandro di Biase;Maciej S. Kowalski;Tanner R. Devlin;Jan A. Oleszkiewicz

  • Sulfide inhibition of anaerobic degradation of lactate and acetate

    D.M. McCartney;J.A. Oleszkiewicz

  • Stimulation and inhibition of anaerobic processes by heavy metals—A review

    J.A. Oleszkiewicz;V.K. Sharma

  • Activated sludge operational regime has significant impact on the type of nitrifying community and its nitrification rates

    Magdalena A. Dytczak;Kathleen L. Londry;Jan A. Oleszkiewicz

  • Competition between methanogens and sulfate reducers: effect of COD:sulfate ratio and acclimation

    Daryl M. McCartney;Jan A. Oleszkiewicz

  • VFA generation from waste activated sludge: Effect of temperature and mixing

    Q. Yuan;R. Sparling;J.A. Oleszkiewicz

  • Bioaugmentation for nitrification at cold temperatures.

    M.A. Head;J.A. Oleszkiewicz

  • Ozonation reduces sludge production and improves denitrification.

    Magdalena A. Dytczak;Kathleen L. Londry;Hansruedi Siegrist;Jan A. Oleszkiewicz

  • Sulfide-Induced Inhibition of Anaerobic Digestion

    Barry L. Hilton;Jan. A. Oleszkiewicz

  • Impact of shear force on the biofilm structure and performance of a membrane biofilm reactor for tertiary hydrogen-driven denitrification of municipal wastewater.

    D. Celmer;J.A. Oleszkiewicz;N. Cicek

  • Struvite precipitation and phosphorus removal using magnesium sacrificial anode

    Damian J. Kruk;Maria Elektorowicz;Jan A. Oleszkiewicz

  • Start-up period investigation of pilot-scale submerged membrane electro-bioreactor (SMEBR) treating raw municipal wastewater.

    Shadi W. Hasan;Maria Elektorowicz;Jan A. Oleszkiewicz

  • Importance of the operating pH in maintaining the stability of anoxic ammonium oxidation (anammox) activity in moving bed biofilm reactors

    L.W. Jaroszynski;N. Cicek;R. Sparling;J.A. Oleszkiewicz

  • Nutrient Removal Technology in North America and the European Union: A Review

    Jan A. Oleszkiewicz;James L. Barnard

  • Influence of electric current on bacterial viability in wastewater treatment

    V. Wei;M. Elektorowicz;J.A. Oleszkiewicz

  • Waste activated sludge fermentation: Effect of solids retention time and biomass concentration

    Q. Yuan;R. Sparling;J.A. Oleszkiewicz

  • Correlations between trans-membrane pressure (TMP) and sludge properties in submerged membrane electro-bioreactor (SMEBR) and conventional membrane bioreactor (MBR).

    Shadi W. Hasan;Maria Elektorowicz;Jan A. Oleszkiewicz

  • Impact of free ammonia on anammox rates (anoxic ammonium oxidation) in a moving bed biofilm reactor

    L.W. Jaroszynski;N. Cicek;R. Sparling;J.A. Oleszkiewicz

  • Electrocoagulation of wastewater using aluminum, iron, and magnesium electrodes

    Tanner Ryan Devlin;Maciej S. Kowalski;Efren Pagaduan;Xugang Zhang

  • Effects of predation and ORP conditions on the performance of nitrifiers in activated sludge systems.

    Y. Lee;J.A. Oleszkiewicz

Frequent Co-Authors

Shadi W. Hasan
Shadi W. Hasan Khalifa University
Dwight D. Bowman
Dwight D. Bowman Cornell University
Hansruedi Siegrist
Hansruedi Siegrist Swiss Federal Institute of Aquatic Science and Technology
Sudhir Murthy
Sudhir Murthy Columbia University
Julián Carrera
Julián Carrera Autonomous University of Barcelona
Juan A. Baeza
Juan A. Baeza Autonomous University of Barcelona
Nariman Sepehri
Nariman Sepehri University of Manitoba

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