| Wastewater Treatment and Nitrogen Removal | Lifetime | 8 | CN 3 | 99.96 |
| Anaerobic Digestion and Biogas Production | Lifetime | 6 | CN 3 | 99.90 |
| Algal biology and biofuel production | Lifetime | 15 | CN 3 | 99.75 |
| Phosphorus and nutrient management | Lifetime | 8 | CN 2 | 99.74 |
| Coal Combustion and Slurry Processing | Lifetime | 7 | CN 4 | 99.48 |
| Microbial Fuel Cells and Bioremediation | Lifetime | 11 | CN 3 | 99.80 |
| Freezing and Crystallization Processes | Lifetime | 6 | CN 3 | 99.74 |
| Membrane Separation Technologies | Lifetime | 38 | CN 13 | 99.72 |
| Constructed Wetlands for Wastewater Treatment | Lifetime | 23 | CN 7 | 99.45 |
| Biofuel production and bioconversion | Lifetime | 106 | CN 10 | 99.49 |
| Adsorption and biosorption for pollutant removal | Lifetime | 123 | CN 35 | 99.21 |
| Coagulation and Flocculation Studies | Lifetime | 16 | CN 3 | 99.02 |
| Spacecraft and Cryogenic Technologies | Lifetime | 156 | CN 28 | 98.07 |
| Microbial Metabolic Engineering and Bioproduction | Lifetime | 239 | CN 28 | 98.85 |
| Odor and Emission Control Technologies | Lifetime | 46 | CN 5 | 98.31 |
| Microplastics and Plastic Pollution | Lifetime | 217 | CN 68 | 98.43 |
| Minerals Flotation and Separation Techniques | Lifetime | 143 | CN 34 | 98.31 |
| Microbial Community Ecology and Physiology | Lifetime | 351 | CN 21 | 98.81 |
| Heat Transfer and Boiling Studies | Lifetime | 147 | CN 37 | 98.52 |
| Hybrid Renewable Energy Systems | Lifetime | 165 | CN 39 | 98.16 |
| Water Quality Monitoring and Analysis | Lifetime | 311 | CN 61 | 97.71 |
| Fluid Dynamics and Heat Transfer | Lifetime | 184 | CN 33 | 98.12 |
| Electrochemical sensors and biosensors | Lifetime | 614 | CN 232 | 98.03 |
| Biodiesel Production and Applications | Lifetime | 268 | CN 37 | 98.00 |
| Water Quality Monitoring Technologies | Lifetime | 181 | CN 38 | 97.27 |
| Electrohydrodynamics and Fluid Dynamics | Lifetime | 278 | CN 31 | 97.27 |
| Water Treatment and Disinfection | Lifetime | 199 | CN 55 | 97.89 |
| Surface Modification and Superhydrophobicity | Lifetime | 428 | CN 190 | 97.43 |
| Fluid Dynamics and Mixing | Lifetime | 195 | CN 25 | 97.62 |
| Heat Transfer and Optimization | Lifetime | 436 | CN 89 | 97.93 |
| Fluid Dynamics and Thin Films | Lifetime | 196 | CN 19 | 96.65 |
| Thermochemical Biomass Conversion Processes | Lifetime | 548 | CN 185 | 97.20 |
| Metal Extraction and Bioleaching | Lifetime | 488 | CN 149 | 96.11 |
| Landfill Environmental Impact Studies | Lifetime | 146 | CN 29 | 96.34 |
| Enzyme Catalysis and Immobilization | Lifetime | 855 | CN 103 | 96.19 |
| Lattice Boltzmann Simulation Studies | Lifetime | 414 | CN 86 | 96.21 |
| Membrane-based Ion Separation Techniques | Lifetime | 476 | CN 153 | 96.15 |
| Microbial bioremediation and biosurfactants | Lifetime | 393 | CN 48 | 96.25 |
| Ammonia Synthesis and Nitrogen Reduction | Lifetime | 761 | CN 323 | 94.89 |
| Solar-Powered Water Purification Methods | Lifetime | 446 | CN 165 | 94.25 |
| Aerosol Filtration and Electrostatic Precipitation | Lifetime | 512 | CN 147 | 94.38 |
| Chromium effects and bioremediation | Lifetime | 412 | CN 83 | 93.25 |
| Agriculture, Soil, Plant Science | Lifetime | 856 | CN 133 | 92.17 |
| Food Drying and Modeling | Lifetime | 339 | CN 30 | 93.42 |
| Recycling and utilization of industrial and municipal waste in materials production | Lifetime | 891 | CN 258 | 92.68 |
| Municipal Solid Waste Management | Lifetime | 670 | CN 118 | 90.81 |
| Cyclone Separators and Fluid Dynamics | Lifetime | 856 | CN 234 | 91.01 |
| Global Energy and Sustainability Research | Lifetime | 786 | CN 36 | 90.12 |
| Industrial Gas Emission Control | Lifetime | 959 | CN 381 | 89.73 |
| Electrokinetic Soil Remediation Techniques | Lifetime | 323 | CN 77 | 87.22 |
| Subcritical and Supercritical Water Processes | Lifetime | 547 | CN 153 | 85.97 |
| Heat and Mass Transfer in Porous Media | Lifetime | 988 | CN 126 | 85.15 |
| Environmental Chemistry and Analysis | Lifetime | 950 | CN 113 | 82.02 |
| Heat Transfer and Numerical Methods | Lifetime | 174 | CN 8 | 41.15 |
| Phosphorus and nutrient management | 2021-2025 | 5 | CN 2 | 98.84 |
| Surface Modification and Superhydrophobicity | 2021-2025 | 30 | CN 25 | 98.75 |
| Wastewater Treatment and Nitrogen Removal | 2021-2025 | 29 | CN 23 | 99.02 |
| Algal biology and biofuel production | 2021-2025 | 52 | CN 13 | 98.39 |
| Anaerobic Digestion and Biogas Production | 2021-2025 | 69 | CN 40 | 97.25 |
| Fluid Dynamics and Heat Transfer | 2021-2025 | 72 | CN 51 | 96.13 |
| Constructed Wetlands for Wastewater Treatment | 2021-2025 | 74 | CN 46 | 95.10 |
| Microbial Fuel Cells and Bioremediation | 2021-2025 | 107 | CN 65 | 95.62 |
| Membrane Separation Technologies | 2021-2025 | 337 | CN 187 | 96.04 |
| Electrohydrodynamics and Fluid Dynamics | 2021-2025 | 150 | CN 72 | 92.52 |
| Biofuel production and bioconversion | 2021-2025 | 482 | CN 193 | 93.24 |
| nanoparticles nucleation surface interactions | 2021-2025 | 201 | CN 59 | 84.10 |
| Nanomaterials and Printing Technologies | 2021-2025 | 372 | CN 164 | 77.54 |
| Subcritical and Supercritical Water Processes | 2021-2025 | 225 | CN 137 | 76.58 |
| Fluid Dynamics Simulations and Interactions | 2021-2025 | 933 | CN 569 | 76.37 |
| Fluid Dynamics and Thin Films | 2021-2025 | 746 | CN 252 | 59.90 |
| Odor and Emission Control Technologies | 2021-2025 | 449 | CN 197 | 59.66 |
| Electrowetting and Microfluidic Technologies | 2021-2025 | 811 | CN 417 | 51.86 |