Biography and education
Dr. Hwang is a professor of Civil and Environmental Engineering at Texas State University. He joined the faculty in 2020 after serving for 16 years as a professor at the University of Puerto Rico at Mayagüez. He is a licensed professional engineer in the state of Texas. He held two postdoctoral appointments: one at the US EPA National Risk Management Research Laboratory (OK) and the other at the US Army ERDC Environmental Laboratory (MS). He acquired a PhD degree from the University of Akron (OH).
Teaching Interests
Research Interests
Featured grants
- Hwang, Sangchul Scott (Principal). In-Reservoir Water Quality Management with Floating Wetlands, The City of Kyle, State, $456549. (Submitted: November 2025, Funded: December 2025 - December 2028). Grant.
- Hwang, Sangchul Scott (Principal), Cho, Eunsang (Co-Principal), Kim, Namwon (Co-Principal). Performance of the Existing Best Management Practices for PFAS Control in Stormwater Runoff in San Marcos, TX, Texas State University, $80000. (Funded: June 1, 2025 - May 31, 2026). Grant.
- Hwang, Sangchul Scott (Principal), Song, In-Hyouk (Co-Principal), Kim, Namwon (Co-Principal). VOC Remediation by Permeable Reactive Barrier and VOC Sensor Development for Site Safety, DOE, Federal, $350000. (Funded: March 2025 - June 2026). Grant.
- Hwang, Sangchul Scott (Principal), Kim, Namwon (Co-Principal). Multidisciplinary Research and Workforce Development on Fate and Transport of PFAS, DOE, Federal, $3007636.5. (Funded: April 2024 - March 2027). Grant.
- Hwang, Sangchul Scott (Principal), Babatunde, Eunice Omotolani (Co-Principal), Minifie, Jana Roberta (Co-Principal). Biologically Active Pervious Structure for Stormwater Management, NSF, Federal, $50000. (Funded: February 2024 - June 2026). Grant.

Featured scholarly/creative works
- Shadman, W., Mannan, M. I., Choity, T. K., Hwang, S. S., Lee, G.-H., Kang, H. G., & Kim, N. (2026). Electrochemical detection of tRNA-derived fragment (tRF) biomarkers using a multi-functionalized carbon electrode. Surfaces and Interfaces. https://doi.org/https://doi.org/10.1016/j.surfin.2026.108446
- Annamalai, S., Kim, N., & Hwang, S. S. (2025). Enhanced PFOA degradation via persulfate-assisted electrochemical oxidation: Performance, mechanistic insights, and toxicity analysis. Journal of Environmental Chemical Engineering, 13, 119424. https://doi.org/https://doi.org/10.1016/j.jece.2025.119424
- Khondoker, M. M., Gurav, R., & Hwang, S. S. (2024). Utilization of Water Hyacinth (Eichhornia Crassipes) Biomass as Eco-friendly Sorbent for Petroleum Oil Spill Cleanup. AQUA -Water Infrastructure, Ecosystems and Society, 73(2), 183–199. https://doi.org/https://doi.org/10.2166/aqua.2024.243
- Hwang, S. S., Johnson, C. M., Charles, J. S. J., & Biediger-Friedman, L. M. (2024). Food Delivery Apps and Their Potential to Address Food Insecurity in Older Adults: A Review. International Journal of Environmental Research and Public Health, 21, 1197. https://doi.org/https://doi.org/10.3390/ijerph21091197
- Gurav, R., Mandal, S., Smith, L., Shi, S., & Hwang, S. S. (2023). The potential of self-activated carbon for adsorptive removal of toxic phenoxyacetic acid herbicide from water. Chemosphere, 339, 139715. https://doi.org/https://doi.org/10.1016/j.chemosphere.2023.139715
Featured awards
- Award / Honor Recipient: Professional Engineer, Texas Board of Professional Engineer. July 9, 2018 - Present
- Award / Honor Recipient: CoSE Research Millionaire (FY2023-2025), CoSE, TXST. October 2025
- Award / Honor Recipient: CoSE Research Millionaire (FY2022-2024), CoSE, TXST. October 14, 2024
- Award / Honor Recipient: Outstanding Professor of Civil Engineering, 2012-2013, University of Puerto Rico at Mayagüez. May 2014
- Award / Honor Recipient: Certified Pervious Concrete Technician, NRMCA. March 6, 2016 - Present

Featured service activities
- Editor
Aqua - Water Infrastructure, Ecosystems and Society
- Member
ISoE Annual Review Committee
- Member
Plum Creek Watershed Partnership Steering Committee
- Member
Plum Creek Wetlands Preserve Planning Committee
- Editorial Review Board Member
Revista Internacional de Desastres Naturales, Accidentes e Infraestructura Civil (RIDNAIC)
- Member
CE PhD Admission Committee
