Citation Rankings
Highly Cited Researchers

National University of Science and Technology Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
Taiwan
Yi-Li Lin (林怡利)
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,321
3,382
0.783
* Total Citation Counts Rankings
Ranking Based On Selection :2
Taiwan
Thanh Binh Nguyen
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,419
3,341
0.977
* Total Citation Counts Rankings
Ranking Based On Selection :4
Taiwan
Mengshan Lee
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,225
1,854
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :5
Taiwan
Jenq Renn Chen
Process Safety
Gas Explosion
Emergency Response
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,416
529
0.374
* Total Citation Counts Rankings
Ranking Based On Selection :6
Taiwan
Nicholas K Cheruiyot
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,075
949
0.883
* Total Citation Counts Rankings
Ranking Based On Selection :7
Zimbabwe
Anteneh Mesfin Yeneneh
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
559
396
0.708
* Total Citation Counts Rankings
Ranking Based On Selection :8
Oman
Akbar Karimi
Water Resources Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :9
Taiwan
Ravi Katiyar
Biochar
heavy metals
Marine Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
413
401
0.971
* Total Citation Counts Rankings
Ranking Based On Selection :10
Zimbabwe
Eugine Makaya
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
200
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :11
Taiwan
Pitchurajan Krishna Perumal
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
229
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :12
Zimbabwe
Mkhokheli Sithole
Natural resource management
climate change
livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210
139
0.662
* Total Citation Counts Rankings
Ranking Based On Selection :14
Taiwan
Che-Jung Hsu
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
191
0.995
* Total Citation Counts Rankings
Ranking Based On Selection :15
Zimbabwe
Nqobizitha Dube
Climate change
Livelihoods
environmental governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
138
0.826
* Total Citation Counts Rankings
Ranking Based On Selection :16
Oman
Saravanan Am
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148
125
0.845
* Total Citation Counts Rankings
Ranking Based On Selection :17
Zimbabwe
Vuyelwa Ndlovu
Environmental Epidemiology
allergy
asthma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
91
0.805
* Total Citation Counts Rankings
Ranking Based On Selection :18
Zimbabwe
Nicholas Mudonhi
Traditional Medicine
Public Health: Maternal Health
Sexual Reproductive Health
OHS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
104
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :19
Oman
Joefel Jessica Cansino Dumaran
Chemical Engineering
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
54
0.684
* Total Citation Counts Rankings
Ranking Based On Selection :20
Zimbabwe
Oliver Dube
Climate Change Adaptation
Spatial Analytics
Air and Water quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
* Total Citation Counts Rankings
Ranking Based On Selection :21
Oman
Karunya Sakhile
Chemical Engineering
Environmental Engineering
Wastewater treatment
Inverse Fluidization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
64
0.955
* Total Citation Counts Rankings
Ranking Based On Selection :22
Zimbabwe
Mthokozisi Ndhlovu
Climate Change Communication
Political Communication and Media & Sexuality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
57
0.891
* Total Citation Counts Rankings
Ranking Based On Selection :23
Zimbabwe
Norman Manyeruke
water resources
non-communicable diseases
social sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
* Total Citation Counts Rankings
Ranking Based On Selection :24
Taiwan
洪崇軒
Environmental Engineering
Pollution Control Technology
Photocatalysis
Air Pollution Control
Water and Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
* Total Citation Counts Rankings
Rankings
234,315
Taiwan
1,349
10
Ranking Based On Selection: 1
Yi-Li Lin (林怡利)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,321
3,382
0.783
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
* Total Citation Counts Rankings
Rankings
288,255
Taiwan
1,735
14
Ranking Based On Selection: 2
Thanh Binh Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,419
3,341
0.977
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
* Total Citation Counts Rankings
Rankings
296,570
Taiwan
1,796
15
Ranking Based On Selection: 3
Chang-Mao Hung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,309
2,698
0.815
* Total Citation Counts Rankings
Rankings
406,482
Taiwan
2,587
22
Ranking Based On Selection: 4
Mengshan Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,225
1,854
0.833
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
* Total Citation Counts Rankings
Rankings
554,101
Taiwan
3,631
33
Ranking Based On Selection: 5
Jenq Renn Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,416
529
0.374
* Total Citation Counts Rankings
Rankings
651,497
Taiwan
4,251
38
Ranking Based On Selection: 6
Nicholas K Cheruiyot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,075
949
0.883
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
* Total Citation Counts Rankings
Rankings
878,136
Zimbabwe
140
18
Ranking Based On Selection: 7
Anteneh Mesfin Yeneneh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
559
396
0.708
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
* Total Citation Counts Rankings
Rankings
935,090
Oman
619
24
Ranking Based On Selection: 8
Akbar Karimi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
* Total Citation Counts Rankings
Rankings
992,302
Taiwan
6,423
6
Ranking Based On Selection: 9
Ravi Katiyar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
413
401
0.971
* Total Citation Counts Rankings
Rankings
1,212,329
Zimbabwe
333
48
Ranking Based On Selection: 10
Eugine Makaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
200
0.833
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
* Total Citation Counts Rankings
Rankings
1,231,231
Taiwan
7,807
77
Ranking Based On Selection: 11
Pitchurajan Krishna Perumal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
229
1.000
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
* Total Citation Counts Rankings
Rankings
1,268,484
Zimbabwe
377
55
Ranking Based On Selection: 12
Mkhokheli Sithole
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210
139
0.662
* Total Citation Counts Rankings
Rankings
1,273,644
Taiwan
8,026
14
Ranking Based On Selection: 13
Duy-Hieu Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
197
0.952
* Total Citation Counts Rankings
Rankings
1,304,847
Taiwan
8,170
80
Ranking Based On Selection: 14
Che-Jung Hsu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
191
0.995
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
* Total Citation Counts Rankings
Rankings
1,364,782
Zimbabwe
438
71
Ranking Based On Selection: 15
Nqobizitha Dube
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
138
0.826
* Total Citation Counts Rankings
Rankings
1,415,962
Oman
939
54
Ranking Based On Selection: 16
Saravanan Am
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148
125
0.845
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy
* Total Citation Counts Rankings
Rankings
1,528,227
Zimbabwe
558
91
Ranking Based On Selection: 17
Vuyelwa Ndlovu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
91
0.805
* Total Citation Counts Rankings
Rankings
1,559,157
Zimbabwe
577
95
Ranking Based On Selection: 18
Nicholas Mudonhi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
104
1.000
Traditional Medicine
Public Health: Maternal Health
Sexual Reproductive Health
OHS
* Total Citation Counts Rankings
Rankings
1,668,227
Oman
1,119
77
Ranking Based On Selection: 19
Joefel Jessica Cansino Dumaran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
54
0.684
* Total Citation Counts Rankings
Rankings
1,681,308
Zimbabwe
668
110
Ranking Based On Selection: 20
Oliver Dube
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
Climate Change Adaptation
Spatial Analytics
Air and Water quality
* Total Citation Counts Rankings
Rankings
1,725,444
Oman
1,154
79
Ranking Based On Selection: 21
Karunya Sakhile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
64
0.955
Chemical Engineering
Environmental Engineering
Wastewater treatment
Inverse Fluidization
* Total Citation Counts Rankings
Rankings
1,741,819
Zimbabwe
723
120
Ranking Based On Selection: 22
Mthokozisi Ndhlovu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
57
0.891
Climate Change Communication
Political Communication and Media & Sexuality
* Total Citation Counts Rankings
Rankings
2,055,914
Zimbabwe
975
177
Ranking Based On Selection: 23
Norman Manyeruke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
* Total Citation Counts Rankings
Rankings
2,337,363
Taiwan
12,027
130
Ranking Based On Selection: 24
洪崇軒
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
Environmental Engineering
Pollution Control Technology
Photocatalysis
Air Pollution Control
Water and Wastewater Treatment