World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
57
Citations
11912
World Ranking
3449
National Ranking
1324

John T. Novak 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 John T. Novak 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: 308 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

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

John T. Novak 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 John T. Novak 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: 57 D-Index — 65th percentile

65% of scientists in this discipline score the same or lower.

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

Overview

John T. Novak is a researcher affiliated with Virginia Tech in the United States, specializing in environmental science and engineering. Their work primarily focuses on water science and technology, with significant contributions to subfields including building and construction, industrial and manufacturing engineering, pollution, and biomedical engineering.

Novak's research spans several key topics within environmental and engineering disciplines. These include anaerobic digestion and biogas production, membrane separation technologies, advanced oxidation water treatment, and water-energy-food nexus studies. They have also worked on wastewater treatment and nitrogen removal, environmental remediation using nanomaterials, and recycling and waste management techniques.

Frequent publication venues for Novak include the Yanbu Journal of Engineering and Science, Environmental Science Water Research & Technology, ACS ES&T Water, Chemosphere, and Water Environment Research.

Some of their recent papers include:

  • Synergistically coupling membrane electrochemical reactor with Fenton process to enhance landfill leachate treatment, 2020, Chemosphere
  • Advancement and Challenges in Municipal Landfill Leachate Treatment-The Path Forward!, 2022, ACS ES&T Water
  • The inhibitory impact of ammonia on thermally hydrolyzed sludge fed anaerobic digestion, 2021, Water Environment Research
  • Increasing oxygen transfer efficiency through sorption enhancing strategies, 2020, Water Research
  • Legionella monitoring in the New York City water distribution system 2017 to 2019, 2022, AWWA Water Science

Novak's frequent coauthors include Zhi-Wu Wang, Zhen He, Matthew J. Higgins, Ahmed Al-Omari, and Sudhir Murthy, demonstrating collaboration across various projects and studies.

Best Publications

  • Hydrolysis of macromolecular components of primary and secondary wastewater sludge by thermal hydrolytic pretreatment.

    Christopher A. Wilson;John T. Novak

  • Characterization of Exocellular Protein and Its Role in Bioflocculation

    Matthew J. Higgins;John T. Novak

  • The effect of cations on the settling and dewatering of activated sludges : Laboratory results

    Matthew J. Higgins;John T. Novak

  • Mechanisms of floc destruction during anaerobic and aerobic digestion and the effect on conditioning and dewatering of biosolids.

    John T. Novak;Mary E. Sadler;Sudhir N. Murthy

  • Effect of various sludge digestion conditions on sulfonamide, macrolide, and tetracycline resistance genes and class I integrons.

    Yanjun Ma;Christopher A. Wilson;John T. Novak;Rumana Riffat

  • Cycling of volatile organic sulfur compounds in anaerobically digested biosolids and its implications for odors.

    Matthew J. Higgins;Yen Chih Chen;Douglas P. Yarosz;Sudhir N. Murthy

  • Characterization of activated sludge exocellular polymers using several cation-associated extraction methods.

    Chul Park;John T. Novak

  • Anaerobic biodegradation of gasoline oxygenates in soils

    Carol K. Yeh;John T. Novak

  • Dewatering and settling of activated sludges: The case for using cation analysis

    Matthew J. Higgins;John T. Novak

  • Estrogen receptor agonist fate during wastewater and biosolids treatment processes: a mass balance analysis.

    R. David Holbrook;John T. Novak;Thomas J. Grizzard;Nancy G. Love

  • Effects of biologically produced surfactants on the mobility and biodegradation of petroleum hydrocarbons

    David M. Falatko;John T. Novak

  • Sorption of 17β-Estradiol and 17α-Ethinylestradiol by Colloidal Organic Carbon Derived from Biological Wastewater Treatment Systems

    R. David Holbrook;Nancy G. Love;John T. Novak

  • Effect of wastewater colloids on membrane removal of antibiotic resistance genes.

    Maria V. Riquelme Breazeal;John T. Novak;Peter J. Vikesland;Amy Pruden

  • Availability of sorbed toluene in soils for biodegradation by acclimated bacteria

    Kevin G. Robinson;William S. Farmer;John T. Novak

  • The digestibility of waste activated sludges.

    Chul Park;Mohammad M. Abu-Orf;John T. Novak

  • A review of landfill leachate induced ultraviolet quenching substances: Sources, characteristics, and treatment.

    Syeed Md Iskander;Renzun Zhao;Renzun Zhao;Ankit Pathak;Abhinav Gupta

  • Resource recovery from landfill leachate using bioelectrochemical systems: Opportunities, challenges, and perspectives.

    Syeed Md Iskander;Brian Brazil;John T. Novak;Zhen He

  • Survival of Antibiotic Resistant Bacteria and Horizontal Gene Transfer Control Antibiotic Resistance Gene Content in Anaerobic Digesters

    Jennifer H. Miller;John T. Novak;William R. Knocke;Amy Pruden

  • Factors affecting floc properties during aerobic digestion : Implications for dewatering

    Sudhir N. Murthy;John T. Novak

  • Evaluation of the extracellular proteins in full-scale activated sludges

    Chul Park;John T. Novak;Richard F. Helm;Young-Ock Ahn

  • The effect of hydrogen peroxide on the degradation of methyl and ethyl tert-butyl ether in soils

    Carol K. Yeh;John T. Novak

Frequent Co-Authors

Sudhir Murthy
Sudhir Murthy Columbia University
Zhen He
Zhen He Washington University in St. Louis
Amy Pruden
Amy Pruden Virginia Tech
Nancy G. Love
Nancy G. Love University of Michigan–Ann Arbor
Francis H. Chapelle
Francis H. Chapelle United States Geological Survey
Glen T. Daigger
Glen T. Daigger University of Michigan–Ann Arbor
Nidal Hilal
Nidal Hilal New York University Abu Dhabi
William D. Burgos
William D. Burgos Pennsylvania State University
Derin Orhon
Derin Orhon Istanbul Technical University
Linsey C. Marr
Linsey C. Marr Virginia Tech

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