World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
93
Citations
29375
World Ranking
1802
National Ranking
38

Juan M. Lema publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Juan M. Lema sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 388 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Juan M. Lema D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Juan M. Lema sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 93 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Juan M. Lema is affiliated with the University of Santiago de Compostela in Spain. Their research primarily lies within the field of Environmental Science, with a particular focus on subfields such as Molecular Biology, Pollution, Biomedical Engineering, Food Science, and Building and Construction.

Their recent scholarly output covers topics broadly related to environmental and biochemical processes, including Anaerobic Digestion and Biogas Production, Microbial Metabolic Engineering and Bioproduction, Pharmaceutical and Antibiotic Environmental Impacts, Biofuel Production and Bioconversion, Wastewater Treatment and Nitrogen Removal, Microplastics and Plastic Pollution, and Protein Hydrolysis and Bioactive Peptides.

Frequent collaborators in their work include Marta Carballa, Miguel Mauricio-Iglesias, Alberte Regueira, Alba Trueba-Santiso, and Sabela Balboa.

Key research venues for Juan M. Lema's publications consist of:

  • The Science of The Total Environment
  • Bioresource Technology
  • Journal of Environmental Chemical Engineering
  • SSRN Electronic Journal
  • Water Research

Selected recent papers demonstrate a focus on wastewater treatment and microbial applications:

  • "The fate of SARS-COV-2 in WWTPS points out the sludge line as a suitable spot for detection of COVID-19" (2021) published in The Science of The Total Environment
  • "Purple phototrophic bacteria for resource recovery: Challenges and opportunities" (2020) published in Biotechnology Advances
  • "The fate of SARS-CoV-2 in WWTPs points out the sludge line as a suitable spot for monitoring" (2020) published in bioRxiv (Cold Spring Harbor Laboratory)
  • "Elimination of SARS-CoV-2 along wastewater and sludge treatment processes" (2021) published in Water Research
  • "Protein composition determines the preferential consumption of amino acids during anaerobic mixed-culture fermentation" (2020) published in Water Research

Best Publications

  • Behavior of pharmaceuticals, cosmetics and hormones in a sewage treatment plant

    Marta Carballa;Francisco Omil;Juan M Lema;Marı́a Llompart

  • Rutin: A review on extraction, identification and purification methods, biological activities and approaches to enhance its bioavailability

    Beatriz Gullón;Thelmo A. Lú-Chau;María Teresa Moreira;Juan M. Lema

  • Removal of Pharmaceutical and Personal Care Products (PPCPs) under nitrifying and denitrifying conditions

    Sonia Suarez;Juan M. Lema;Francisco Omil

  • How are pharmaceutical and personal care products (PPCPs) removed from urban wastewaters

    Sonia Suárez;Marta Carballa;Francisco Omil;Juan M. Lema

  • Fate of pharmaceutical and personal care products (PPCPs) during anaerobic digestion of sewage sludge.

    Marta Carballa;Francisco Omil;Thomas Ternes;Juan M. Lema

  • Decolorization of ion-exchange effluents derived from sugar-mill operations by Bjerkandera sp. BOS55

    M.T. Moreira;C. Palma;G. Feijoo;J.M. Lema

  • Methanogenic and non-methanogenic activity tests. Theoretical basis and experimental set up

    M. Soto;R. Méndez;J.M. Lema

  • Pre-treatment of hospital wastewater by coagulation-flocculation and flotation.

    Sonia Suarez;Juan M. Lema;Francisco Omil

  • Influence of the content in fats and proteins on the anaerobic biodegradability of dairy wastewaters

    G Vidal;A Carvalho;R Méndez;J.M Lema

  • Removal of cosmetic ingredients and pharmaceuticals in sewage primary treatment

    Marta Carballa;Francisco Omil;Juan M. Lema

  • Microbial management of anaerobic digestion: exploiting the microbiome-functionality nexus.

    Marta Carballa;Leticia Regueiro;Juan M Lema

  • Determination of the solid-water distribution coefficient (Kd) for pharmaceuticals, estrogens and musk fragrances in digested sludge.

    Marta Carballa;Guido Fink;Francisco Omil;Juan M. Lema

  • Sodium inhibition in the anaerobic digestion process: Antagonism and adaptation phenomena

    Gumersindo Feijoo;Manuel Soto;Ramón Méndez;Juan M. Lema

  • A methodology for optimising feed composition for anaerobic co-digestion of agro-industrial wastes.

    J.A. Álvarez;L. Otero;J.M. Lema

  • Enzymatic pretreatment to enhance oil extraction from fruits and oilseeds: a review

    H. Domínguez;M.J. Núñez;J.M. Lema

  • Modeling product formation in anaerobic mixed culture fermentations.

    Jorge Rodríguez;Jorge Rodríguez;Robbert Kleerebezem;Juan M. Lema;Mark C.M. van Loosdrecht

  • Evaluation of Extracts from Gevuina avellana Hulls as Antioxidants

    Andrés Moure;Daniel Franco;Jorge Sineiro;Herminia Dominguez

  • Influence of nitrifying conditions on the biodegradation and sorption of emerging micropollutants.

    E. Fernandez-Fontaina;F. Omil;J.M. Lema;M. Carballa

  • Nitrification in saline wastewater with high ammonia concentration in an activated sludge unit

    J.L. Campos;A. Mosquera-Corral;M. Sánchez;R. Méndez

  • Understanding the removal mechanisms of PPCPs and the influence of main technological parameters in anaerobic UASB and aerobic CAS reactors.

    T. Alvarino;S. Suarez;J.M. Lema;F. Omil

Frequent Co-Authors

Gumersindo Feijoo
Gumersindo Feijoo University of Santiago de Compostela
Maria Teresa Moreira
Maria Teresa Moreira University of Santiago de Compostela
Francisco Omil
Francisco Omil University of Santiago de Compostela
Ramón Méndez
Ramón Méndez University of Santiago de Compostela
Marta Carballa
Marta Carballa University of Santiago de Compostela
Herminia Domínguez
Herminia Domínguez Universidade de Vigo
Gladys Vidal
Gladys Vidal University of Concepción
José Luis Campos
José Luis Campos Adolfo Ibáñez University
Jim A. Field
Jim A. Field University of Arizona
Robbert Kleerebezem
Robbert Kleerebezem Delft University of Technology

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