World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
31
Citations
5037
World Ranking
9649
National Ranking
23

Zaini Ujang 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 Zaini Ujang 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 157 publications — 45th percentile

45% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Zaini Ujang 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 Zaini Ujang 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 31 D-Index — 1st percentile

1% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Zaini Ujang is affiliated with the Harvard Business School Alumni Club of Malaysia in Malaysia. Their research spans several key areas within environmental science and engineering, with a focus on wastewater treatment, microbial ecology, and fluid dynamics.

Their publication record includes research on topics such as wastewater treatment and nitrogen removal, anaerobic digestion and biogas production, and microbial community ecology and physiology. Additional topics include wind energy research and development, cavitation phenomena in pumps, fluid dynamics and turbulent flows, and issues related to microplastics and plastic pollution.

Frequent coauthors in their work include Mohd Hakim Ab Halim, Aznah Nor Anuar, Inawati Othman, Hasnida Harun, and Mark C.M. van Loosdrecht.

Their papers have appeared primarily in the following venues:

  • IOP Conference Series Earth and Environmental Science
  • KSCE Journal of Civil Engineering

Representative recent papers include:

  • Predictions of Wake and Central Mixing Region of Double Horizontal Axis Tidal Turbine, 2020, KSCE Journal of Civil Engineering
  • Identification and Role of Microbial Species Developed in Aerobic Granular Sludge Bioreactor for Livestock Wastewater Treatment, 2020, IOP Conference Series Earth and Environmental Science
  • Physical Characteristics and Removal Performance of Aerobic Granular Sludge in Biological Treatment of Domestic Wastewater, 2022, IOP Conference Series Earth and Environmental Science

Their main fields of study include environmental science and engineering. Subfields of focus within their work encompass pollution, building and construction, ecology, aerospace engineering, and mechanics of materials.

Best Publications

  • The food waste hierarchy as a framework for the management of food surplus and food waste

    Effie Papargyropoulou;Rodrigo Lozano;Julia K. Steinberger;Nigel Wright

  • Conceptual framework for the study of food waste generation and prevention in the hospitality sector.

    Effie Papargyropoulou;Nigel Wright;Rodrigo Lozano;Julia Steinberger

  • Arsenic removal technologies for drinking water treatment

    Kuan-Seong Ng;Zaini Ujang;Pierre Le-Clech

  • Patterns and Causes of Food Waste in the Hospitality and Food Service Sector: Food Waste Prevention Insights from Malaysia

    Effie Papargyropoulou;Julia K. Steinberger;Nigel Wright;Rodrigo Lozano

  • Livestock wastewater treatment using aerobic granular sludge.

    Inawati Othman;Aznah Nor Anuar;Zaini Ujang;Noor Hasyimah Rosman

  • Polymer-based chelating adsorbents for the selective removal of boron from water and wastewater: A review

    Mohamed Mahmoud Nasef;Madana Nallappan;Zaini Ujang

  • Characterization of aerobic granular sludge treating high strength agro-based wastewater at different volumetric loadings.

    Norhayati Abdullah;Ali Yuzir;Thomas P. Curtis;Adibah Yahya

  • The influenced of PAC, zeolite, and Moringa oleifera as biofouling reducer (BFR) on hybrid membrane bioreactor of palm oil mill effluent (POME).

    A. Damayanti;Zaini Ujang;M. R. Salim

  • Projection of CO2 emissions in Malaysia

    Nor Sharliza Mohd Safaai;Zainura Zainon Noor;Haslenda Hashim;Zaini Ujang

  • Aerobic granular sludge formation for high strength agro-based wastewater treatment.

    Norhayati Abdullah;Zaini Ujang;Adibah Yahya

  • Cultivation of aerobic granular sludge for rubber wastewater treatment.

    Noor Hasyimah Rosman;Aznah Nor Anuar;Inawati Othman;Hasnida Harun

  • Characteristics and performance of aerobic granular sludge treating rubber wastewater at different hydraulic retention time

    Noor Hasyimah Rosman;Aznah Nor Anuar;Shreeshivadasan Chelliapan;Mohd Fadhil Md Din

  • Water pinch analysis for an urban system: a case study on the Sultan Ismail Mosque at the Universiti Teknologi Malaysia (UTM)

    Z.A. Manan;S.R. Wan Alwi;Z. Ujang

  • Bio-fouling reducers for improving the performance of an aerobic submerged membrane bioreactor treating palm oil mill effluent

    Adhi Yuniarto;Zainura Zainon Noor;Zaini Ujang;Gustaf Olsson

  • Greenhouse gas reductions through enhanced use of residues in the life cycle of Malaysian palm oil derived biodiesel.

    Sune Balle Hansen;Stig Irving Olsen;Zaini Ujang

  • Settling behaviour of aerobic granular sludge.

    A. Nor Anuar;Z. Ujang;M.C.M. van Loosdrecht;M.K. de Kreuk

  • Runoff quality and pollution loadings from a tropical urban catchment

    Z. Yusop;L. W. Tan;Zaini Ujang;M. Mohamed

  • Water and wastewater in developing countries: Present reality and strategy for the future

    Z. Ujang;C. Buckley

  • Application of low-pressure reverse osmosis membrane for Zn2+ and Cu2+ removal from wastewater

    Zaini Ujang;G. K. Anderson

  • Influence of high temperature on the performance of aerobic granular sludge in biological treatment of wastewater.

    Mohd Hakim Ab Halim;Aznah Nor Anuar;Nur Syahida Abdul Jamal;Siti Izaidah Azmi

Frequent Co-Authors

Gustaf Olsson
Gustaf Olsson Lund University
Thorkild Hvitved-Jacobsen
Thorkild Hvitved-Jacobsen Aalborg University
M.C.M. van Loosdrecht
M.C.M. van Loosdrecht Delft University of Technology
Mohamed Mahmoud Nasef
Mohamed Mahmoud Nasef University of Technology Malaysia
Jes Vollertsen
Jes Vollertsen Aalborg University
Mogens Henze
Mogens Henze Technical University of Denmark
Shreeshivadasan Chelliapan
Shreeshivadasan Chelliapan University of Technology Malaysia
Zulkifli Yusop
Zulkifli Yusop University of Technology Malaysia
Zainuddin Abdul Manan
Zainuddin Abdul Manan University of Technology Malaysia
Rodrigo Lozano
Rodrigo Lozano University of A Coruña

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