Dr. San Hwang, Director
Associate Professor at Ingram School of Engineering, IGRM 5312
Phone: (512) 245-3858
Email:s_h617@txstate.edu
: Sangchul Hwang
: Sangchul Hwang
Biography
Dr. San Hwang is currently an Associate Professor of Environmental and Water Resources Engineering in the Civil Engineering Program in the Ingram School of Engineering at the Texas State University. He specializes in nature-based solutions for environmental challenges, focusing on topics like water quality, waste management, and sustainable infrastructure. Dr. Hwang has extensive experience in both academia and research, and is committed to educating the next generation of environmental engineers.
He is currently the Project Director (PD) of HEDGE(Hwang Eco-friendly Development for Green Environment).
Research Interest
Dr. Hwang’s research expertise is broadly in nature-inspired civil and environmental engineering. His current research focus is on (1) the fate, transport, and remediation of environmental contaminants (e.g., PFAS, microplastics, chlorinated solvents, heavy metals, etc.) under changing climate; (2) the upcycling of plant biomass to produce advanced materials for the improvement of water quality, sanitation, public health, and agricultural productivity; and (3) designing, optimizing, and implementing Green Stormwater Infrastructure for Low Impact Development.
Teaching Experience:
Texas State University
Associate Professor, Civil Engineering Program, Ingram School of Engineering
Sep. 2020 – present
UPR-Mayagüez
Full Professor, INCI
Associate Professor
Tenure
Assistant Professor
Jan. 2005 – Jun. 2020
Jul. 2014 – Jun. 2020
Jul. 2008 – Jun. 2014
Jan. 2010
Jan. 2005 – Jun. 2008
Daegu Engineering Institute, Korea
Part-time Lecturer
Sep. 1994 – Jun. 1996
Dr. Hwang’s Students and Publications at the University of Puerto Rico at Mayagüez
Former HEDGE Graduate Students at UPRM (2005 – 2020)
Carla Moreno, MS, May 2018, “Subsurface Stormwater Retention with pervious Concrete Pavement on UPRM Campus Master Plan”
Marleisa Arocho, MS, May 2018, “Pervious Concrete: Lab-scale Optimization and Field Application”
Valerie Lopez, MS, May 2016, “Water Quality Performance of Pervious Concrete Pavements”
Minju Jo, MS, May 2016, “Optimization of fly ash geopolymer pastes and its use in pervious concrete pavement for pollutant removal in water”
Linoshka Soto, MS, May 2015, “Optimization of Pervious Concrete Incorporating Coal Fly Ash, Iron-oxide Nanoparticles and Water Reducing Admixtures and its Application for the removal of nutrients and fecal coliforms”
More Former HEDGE Graduate Students at UPRM
Isomar Latorre, PhD, Dec 2014, “Biodeterioration of PVC Plastics, Biochemical Fate of DEHP, and Bioreactor Landfills for DEHP-containing Leachate Management”
Margaret Hernandez, MS, Dec 2014, “Sand Filtration and Chlorination for Removal and Inactivation of Bacillus subtilis”
Keila Pagan, MS, May 2014, “Impact Assessment of the Presence of Engineered Iron Oxide Nanoparticles on Wastewater Effluent Disinfection”
Natalia Vazquez, ME, May 2014, “Statistical Optimization of Pervious Concrete Pavement Containing Fly Ash and Engineered Iron Oxide Nanoparticles for Runoff Quality and Quantity Controls”
Juan Falcon, MS, May 2014, “Treatment Train with Tire Crumb Rubber and Cyperus haspan: A New Approach for Remediation of Explosives-Containing Water”
Diana Martinez, MS, Dec 2013, “Effect of Engineered Iron Oxide Nanoparticles on Effluent Water Quality from Biological Wastewater Treatment”
Eileen Irizarry, MS, Dec 2012, “Development of Ternary Relationships among Soil Characteristics, CAAs Amount, and Groundwater Quality: Column Percolation”
Zalleris Escobar, PhD, May 2012, “Performance of Landfills with Coal Combustion Byproducts Aggregates as an Alternative Reactive Daily Cover”
Laura Rodriguez, MS, May 2012, “Disinfection By-products Occurrence and Escherichia coliform Removal in a Point-of-Entry Cistern Purification Unit”
Perla Torres, ME, May 2012, “Water Quality Assessment with Aquatic Non-Structural Blocks Made of Coal Ash Aggregates Mortars”
Nelson Anaya, ME, May 2011, “Enhanced Trichloroethylene Remediation with a Polymer-Aided Alcohol Flushing”
Isomar Latorre, MS, May 2010, “Feasibility of Open Pit Restoration with Coal Ash Aggregates: Ground Water Quality Assessment”
Ivan Morales, MS, 2010, “Enhancement of Reactive Oxygen Species Production in Nanoparticulate Bimetallic Zero-Valent Iron and Dioxygen System”
Imiraily Hernandez, ME, Dec 2009, “Phyto-viability on Restored Land with Coal Ash Aggregates as Backfilling Amendment”
Victor Hernandez, ME, Dec 2009, “Remediation of Explosives-containing Water using Advanced Oxidation and Sorption Processes”
Melissa Herrera, MS, May 2009, “Development of a Decision Support Tool to Ensure Safe Drinking Water in Non-PRASA Communities in Puerto Rico”
Peer-reviewed Publications by Former HEDGE Graduate Students at UPRM
(*Graduate Mentee, **Undergraduate Mentee, ***Postdoc Mentee)
Hwang, S., Terán-Rondón*, R., Morales-Vélez, A., Segarra-Montelala, R., Somoza, López J., Ruiz-Vale, I. Daleccio, E. 2019. Pervious Concrete Pavement to Make a Public Plaza More Handicap Accessible and Environmentally Friendly. Revista Dimensión CIAPR 33, 27-36.
Arocho-Irizarry*, M., Segarra, R., Diaz, V., Hwang, S. 2018. Eco-friendly pervious concrete infrastructure for stormwater management and bicycle parking: A case study. Urban Water Journal 15, 713-721. https://doi.org/10.1080/1573062X.2018.1536760
López-Carrasquillo*, V., Hwang, S. 2017. Comparative assessment of pervious concrete mixtures containing fly ash and nanomaterials for compressive strength, physical durability, permeability, water quality performance and production cost. Construction & Building Material, 139, 148-158. https://doi.org/10.1016/j.conbuildmat.2017.02.052
Hwang, V., Masters**, A., Arocho*, M., Hwang, S. 2017. Fly ash-amended pervious concrete pavement followed by bamboo bioretention basin with Dracaena sanderiana for urban stormwater runoff control. Construction & Building Materials 132, 161-169. https://doi.org/10.1016/j.conbuildmat.2016.11.134
More Former HEDGE Graduate Students Peer-reviewed Publications at UPRM
Soto-Pérez*, L., Hwang, S. 2016. Mix design and pollution control potential of pervious concrete with non-compliant waste fly ash. Journal of Environmental Management 176, 112-118. https://doi.org/10.1016/j.jenvman.2016.03.014
Soto-Pérez*, L., Lopez*, V., Hwang, S. 2015. Response Surface Methodology to optimize the cement paste mix design: Time-dependent contribution of fly ash and nano-iron oxide as admixtures. Materials & Design 86, 22-29. https://doi.org/10.1016/j.matdes.2015.07.049
Jo*, M., Soto*, L., Arocho*, M., St John*, J., Hwang, S. 2015. Optimum mix design of fly ash geopolymer paste and its use in pervious concrete for removal of fecal coliforms and phosphorus in water. Construction & Building Materials 93, 1097-1104. https://doi.org/10.1016/j.conbuildmat.2015.05.034
Vázquez-Rivera*, N., Soto-Pérez*, L., St John*, J., Molina-Bas, O., Hwang, S. 2015. Optimization of pervious concrete containing fly ash and iron oxide nanoparticles and its application for phosphorus removal. Construction & Building Materials 93, 22-28. https://doi.org/10.1016/j.conbuildmat.2015.05.110
Hossain***, F., Perales-Perez, O.J., Hwang, S., Román, F. 2014. Antimicrobial nanomaterials as water disinfectant: Applications, limitations and future perspectives. Science of the Total Environment 466-467, 1047-1059. https://doi.org/10.1016/j.scitotenv.2013.08.009
Latorre*, I., Hwang, S., Montalvo, R. 2012. Isolation and Molecular Identification of Landfill Bacteria Capable of Growing on Di-(2-ethylhexyl) Phthalate and Deteriorating PVC Materials. Journal of Environmental Science and Health, Part A-Toxic/Hazardous Substances & Environmental Engineering 47, 2254-2264. https://doi.org/10.1080/10934529.2012.707549
Hwang, S., Latorre*, I., Irizarry*, E. 2012. Cordyline fruticosa Growth and Soil Microbial Quality with Topical Application of Coal Combustion Byproducts Aggregates. Coal Combustion and Gasification Products 4, 10-16. https://doi.org/10.4177/CCGP-D-11-00014.1
Latorre*, I., Hwang, S., Sevillano**, M. Montalvo, R. 2012. PVC Biodeterioration and DEHP Leaching by DEHP-degrading Bacteria. International Biodeterioration & Biodegradation 69, 73-81. https://doi.org/10.1016/j.ibiod.2011.12.011
Hwang, S., Martinez*, D., Perez, P., Rinaldi, C. 2011. Effect of surfactant-coated iron oxide nanoparticles on the effluent water quality from a simulated sequencing batch reactor treating domestic wastewater. Environmental Pollution 159, 3411-3415. https://doi.org/10.1016/j.envpol.2011.08.032
Hwang S., Latorre* I. 2011. Impact of Manufactured Coal Ash Aggregates on Water Quality during Open Pit Restoration: 1. A statistical screening test. Coal Combustion and Gasification Products 3, 1-7. https://doi.org/10.4177/CCGP-D-10-00004
Hwang S., Hernandez** I., Latorre* I., Rosado** S. 2010. Phaselous vulgaris Growth under the Influence of Manufactured Coal Ash Aggregates. Coal Combustion and Gasification Products 2, 38-44. https://doi.org/10.4177/CCGP-D-10-00003.1
Hwang S., Hernandez* V. 2010. Manufactured Coal Ash Aggregates for Aqueous TNT Sorption. Coal Combustion and Gasification Products 2, 35-37. https://doi.org/10.4177/CCGP-D-09-00022.1