Environmental Engineering & Earth Sciences

David A. Ladner

Ladner
Assistant Professor
342 Computer Court
Anderson, SC 29625-6510
864.656.5572
864.656.0672 FAX
E-mail: ladner@clemson.edu

Ph.D.  Environmental Engineering, University of Illinois at Urbana-Champaign, 2009
M.S.  Environmental Engineering, University of Illinois at Urbana-Champaign, 2005
B.S.  Environmental Engineering, New Mexico Institute of Mining and Technology, 2003




Faculty Overview

Dr. Ladner's research is geared toward making membrane-based water treatment processes more sustainable. One project involves redesigning reverse osmosis (RO) and nanofiltration (NF) membrane modules to decrease fouling problems. Another initiative is to develop polymeric membranes and coatings that can be quickly and cheaply regenerated to release foulants before starting a fresh filtration cycle. A third effort is attempting to redesign the RO desalination process to make it compatible with renewable energy (wind, solar, and tidal). Lastly, the group is interested in developing membranes and processes that can alleviate current bottlenecks in algal biofuel production. Like membranes themselves, this research program is at an interface; here we interface between science and engineering. We take fundamental knowledge from surface and colloid science, mass transfer, fluid mechanics, etc., and apply it to solve real-world sustainable engineering challenges.

Class Information
For current syllabi, please search the Clemson University Syllabus Respository.

EES 4020/6020 Water and Wastewater Treatment Systems
EES 4030 Water and Wastewater Treatment Laboratory
EES 4750 Environmental Engineering Capstone Design
EES 4850/6850 Hazardous Waste Management
EES 4860/6860 Pollution Prevention and Industrial Ecology
EES 4900 Creative Inquiry, LIEF Sustainability Living Learning Community
EES 8830 Special Topics: Membranes for Water Treatment

Selected Publications

Xie, P.; Murdoch, L.C.; Ladner, D.A. "Hydrodynamics of sinusoidal spacers for improved reverse osmosis performance." Journal of Membrance Science 2014, 453, 92-99.

Geitner, N.K.; Powell, R.R.; Bruce, T.; Ladner, D.A.; Ke, P.C. "Effects of dendrimer oil dispersants on Dictyostelium discoideum." RSC Advances 2013, 3, 25930-25936.

Ellerie, J.R.; Apul, O.; Karanfil, T.; Ladner, D.A. "Comparing graphene, carbon nanotubes, and superfine powdered activated carbon as adsorptive coating materials for microfiltration membranes." Journal of Hazardous Materials 2013, 261, 91-98.

Lewis, D.O.; Ladner, D.A.; Karanfil, T. "Source water and microfiltration plant manganese control study." Journal American Water Works Association 2013, 105, E480-E495.

Ladner, D.A.; Bolyard S.C.; Apul, D.; Whelton, A.J. "Navigating the academic job search for environmental engineers: Guidance for job seekers and mentors." Journal of Professional Issues in Engineering Education and Practice 2013, 139, 211-217.

Smith, M.; Barnard, C.; Ladner, D.A. "Functionalized nanoparticles as removable membrane coatings." Ch. 11 in Novel Solutions to Water Pollution, S. Ahuja, and K. Hristovski, eds., ACS Symposium Series, American Chemical Society, Washington, D.C., 2013, 1123, 189–203.

Geitner, N.K.; Bhattacharya, P.; Steele, M.; Chen, R.; Ladner, D.A.; Ke, P.C. "Understanding dendritic polymer-hydrocarbon interactions for oil dispersion." RSC Advances 2012, 2, 9371-9375.

Bhattacharya, P.; Conroy, N.; Rao, A.M.; Powell, B.A.; Ladner, D.A.; Ke, P.C. "PAMAM dendrimer for mitigating humic foulant." RSC Advances 2012, 2, 7997-8001.

Kiser, M.A.; Ladner, D.A.; Hristovski, K.D.; Westerhoff, P. "Nanomaterial transformation and association with fresh and freeze-dried wastewater activated sludge: Implications for testing protocol and environmental fate." Environmental Science and Technology 2012, 46, 7046–7053.

Ladner, D.A.; Steele, M.; Weir, A.; Hristovski, K.; Westerhoff, P. "Functionalized nanoparticle interactions with polymeric membranes." Journal of Hazardous Materials 2012, in press.

Reed, R.; Ladner, D.; Higgins, C.P.; Westerhoff, P.; Ranville, J. "Solubility of nano-zinc oxide in environmentally and biologically important matrices." Environmental Toxicology and Chemistry 2012, in press.

Vardon, D.R.; Clark, M.M.; and Ladner, D.A. "The potential of laser scanning cytometry for early warning of algal blooms in desalination plant feedwater." Desalination 2011, 277, 193-200.

Ladner, D.A.; Vardon, D.R.; Clark, M.M. “Effects of shear on microfiltration and ultrafiltration fouling by marine bloom-forming algae.” Journal of Membrane Science 2010, 356, 33-43.

Ba, C.; Ladner, D.A.; Economy, J. “Using polyelectrolyte coatings to improve fouling resistance of a positively charged nanofiltration membrane.” Journal of Membrane Science 2010, 347, 250-259.

Ladner, D.A.; Subramani, A.; Kumar, M.; Adham, S.S.; Clark, M.M. “Bench-scale evaluation of seawater desalination by reverse osmosis.” Desalination 2010, 250, 490-499.

Ladner, D.A.; Lee, B.W.; Clark, M.M. “Laser scanning cytometry for enumeration of fluorescent microspheres.” Journal of the American Water Works Association 2007, 99, 110-117.

Awards & Honors

Certificate of Merit for the platform presentation "Functionalized nanoparticles as removable membrane coatings" at the 242nd National Meeting of the American Chemical Society (with graduate student Megan Smith).

Fellow, Environmental Protection Agency (EPA), Science to Achieve Results (STAR) Fellowship Program, August 2006 to August 2009.

Best Student Paper Award, Membrane Technology Conference, Memphis, TN, April 2009.

Larson Aquatic Research Support (LARS) Scholarship, American Water Works Association (AWWA), June 2005.

Cramer Award, New Mexico Institute of Mining and Technology, May 2003.

Paige Ashman Award, NMIMT Department of Environmental Engineering, May 2003.