Yen-Ling Liu Email & Phone Number

Department Of Civil And Environmental Engineering

• Investigate the effectiveness of anion exchange resin removing per- and polyfluoroalkyl substances (PFAS) from drinking water sources1) Test the removal of legacy and emerging PFAS by various commercial anion exchange resins2) Evaluate the effect of competing anions and the presence of dissolved organic matter on the removal of PFAS from groundwater3) Setup and conduct rapid small-scale column tests (RSSCT) to investigate the breakthrough of PFAS via PFAS-specific resin and… Show more • Investigate the effectiveness of anion exchange resin removing per- and polyfluoroalkyl substances (PFAS) from drinking water sources1) Test the removal of legacy and emerging PFAS by various commercial anion exchange resins2) Evaluate the effect of competing anions and the presence of dissolved organic matter on the removal of PFAS from groundwater3) Setup and conduct rapid small-scale column tests (RSSCT) to investigate the breakthrough of PFAS via PFAS-specific resin and universal resin4) Use statistical analysis to determine the key properties of PFAS and resin in the removal processes• Evaluate the removal and defluorination of PFAS in the water treatment train1) Systematically test the optimal regeneration strategies for PFAS-spent resins under practical conditions for water facilities.2) Develop and optimize the persulfate oxidation for degrading PFOA, PFOS, and GenX. • Collect surface water samples along with rivers for identifying and tracking PFAS from PFAS-spilled sites.• Develop the analytical method for legacy and emerging PFAS at ppt level by one single direct injection on liquid chromatography-mass spectrometry (LC-MS/MS). Show less

Columbus, Ohio Area

• Optimize the application of powdered activated carbon on treating algal toxins in water treatment processes. 1) Prepare and characterized the properties of powdered activated carbon within the targeting particle size. 2) Test the competition between target compounds and organic molecules for carbon adsorption sites.3) Develop the analytical method for saxitoxin in freshwater samples on liquid chromatography-mass spectrometry.4) Measure the trace concentration of algal toxins… Show more • Optimize the application of powdered activated carbon on treating algal toxins in water treatment processes. 1) Prepare and characterized the properties of powdered activated carbon within the targeting particle size. 2) Test the competition between target compounds and organic molecules for carbon adsorption sites.3) Develop the analytical method for saxitoxin in freshwater samples on liquid chromatography-mass spectrometry.4) Measure the trace concentration of algal toxins in water samples via enzyme-linked immunosorbent assay (ELISA). Show less

Civil, Environmental And Geodetic Engineering

• Evaluate the removal of algal toxins through (i) ozone, (ii) activated carbon, and (iii) biodegradation1) Design and establish laboratory-scale continuous ozone-biological activated carbon column experiments for 260 days. 2) Extract and analyze trace water pollutants via solid-phase extraction and liquid chromatography method.3) Determine the oxidation byproducts of organic compounds in a different level of oxidant dosage by LC-MS/MS.4) Improve the performance of water… Show more • Evaluate the removal of algal toxins through (i) ozone, (ii) activated carbon, and (iii) biodegradation1) Design and establish laboratory-scale continuous ozone-biological activated carbon column experiments for 260 days. 2) Extract and analyze trace water pollutants via solid-phase extraction and liquid chromatography method.3) Determine the oxidation byproducts of organic compounds in a different level of oxidant dosage by LC-MS/MS.4) Improve the performance of water treatment processes by extending 60 days of over 90% of algal toxin removal.5) Elucidate the impact of toxin variants and concentration in source water on the removal of water treatment processes.• Determine the fate and sorption of algal toxins to natural sediments1) Evaluate the effect of pH, electrolyte, and the presence of natural organic matter on the sorption of algal toxins onto clay minerals.2) Understand the behaviors of adsorbed algal toxins in different environmental conditions.• Identify the fate of silver nanoparticle in natural water environment1) Synthesize silver nanoparticles with or without organic coating agents.2) Monitored the hydrodynamic particle diameter of silver nanoparticles under solar light exposure continuously 50 days Show less

Taiepi, Taiwan

Teach Environment and Health course

Taipei, Taiwan

Conduct National Science and Technology Program-Energy Education ProjectFound the construction of education of energy conservation and carbon reduction

Taipei City, Taiwan

National Taiwan University: Graduate Institute of Environmental Engineering, Taipei, TaiwanGraduate Research Assistant, Professor Y. Yu, July 2009 - June 2010- Treated copper ion from EDTA-Cu containing semiconductor wastewater.- Schemed and conducted the bench-scale of physicochemical treatment processes experiment. - Acquired skill in copper ion measurement and executed the analysis by atomic absorption spectroscopy.- Collected and pre-treated samples for copper ion… Show more National Taiwan University: Graduate Institute of Environmental Engineering, Taipei, TaiwanGraduate Research Assistant, Professor Y. Yu, July 2009 - June 2010- Treated copper ion from EDTA-Cu containing semiconductor wastewater.- Schemed and conducted the bench-scale of physicochemical treatment processes experiment. - Acquired skill in copper ion measurement and executed the analysis by atomic absorption spectroscopy.- Collected and pre-treated samples for copper ion measurement.National Taiwan University: Graduate Institute of Environmental Engineering, Taipei, TaiwanGraduate Research Assistant, Professor Y. Yu, September 2008 - June 2009- Degraded tetra methyl ammonium hydroxide from semiconductor wastewater.- Assisted with graduate students to collect samples.- Manipulated analytical instruments for total organic carbon and nitrogen measurements. Show less

Taipei, Taiwan

Taipei, Taiwan

Doctor Of Philosophy - Phd, Environmental/Environmental Health Engineering

Activities and Societies: Activity Planner of Taiwanese Student Association in the Ohio State University ACS-Columbus Graduate Poster.

Master Of Engineering (M.Eng.), Environmental/Environmental Health Engineering

Activities and Societies: Tennis Team Leader in Environmental Related Department of Universities and Colleges United Competition Cup.

Bachelor'S Degree, Bachelor Of Science: Bioenvironmental Systems Engineering

Activities and Societies: Treasurer in Bioenvironmental System Engineering Student Governing Council from August 2006 to July 2007.