Awards & Honors:
Membrane transport characterization — Collaborated with researchers at NIST to apply neutron radiography to the study of water and solute transport through forward osmosis desalination membranes and investigate common film models of forward osmosis permeation.
Anti-fouling and anti-scaling membranes — Studied the effects of membrane surface properties on organic fouling and mineral scaling using atomic force microscopy, quartz crystal microbalance, and flux decline experiments. Developed fouling-resistant membrane surfaces through the attachment of hydrophilic polymers.
Applications of forward osmosis technology — Assessed the energy consumption of forward osmosis desalination compared to other desalination technologies and investigated potential commercial applications of the technology, such as seawater desalination for agriculture and reuse of produced water from oil and gas operations.
Shaffer D.L., Tousley M.E., Elimelech M. Influence of polyamide membrane surface chemistry on gypsum scaling behavior. Journal of Membrane Science, 2017, 525, 249-256.
Tousley M.E., Shaffer D.L., Lee J.H., Osuji C.O., Elimelech M. Effect of Final Monomer Deposition Steps on Molecular Layer-by-Layer Polyamide Surface Properties. Langmuir, 2016, 32 (42), 10815-10823.
Shaffer D.L., Jaramillo H., Romero-Vargas Castrillón S., Lu X., and Elimelech M. Postfabrication modification of forward osmosis membranes with a poly(ethylene glycol) block copolymer for improved organic fouling resistance. Journal of Membrane Science, 2015, 490, 209-219.
Shaffer D.L., Werber J.R., Jaramillo H., Lin S., and Elimelech M. Forward osmosis: Where are we now? Desalination, 2015, 356, 271-284.
Romero-Vargas Castrillón S., Lu X., Shaffer D.L., and Elimelech M. Amine enrichment and poly(ethylene glycol) (PEG) surface modification of thin-film composite forward osmosis membranes for organic fouling control. Journal of Membrane Science, 2014, 450, 331-339.
Lu X., Romero-Vargas Castrillón S., Shaffer D.L., Ma J., and Elimelech M. In Situ Surface
Chemical Modification of Thin-Film Composite Forward Osmosis Membranes for Enhanced Organic Fouling Resistance. Environmental Science & Technology, 2013, 47 (21), 12219-12228.
Shaffer D.L., Arias Chavez L.H., Ben-Sasson M., Romero-Vargas Castrillón S., Yip N.Y., and Elimelech M. Desalination and Reuse of High-Salinity Shale Gas Produced Water: Drivers, Technologies, and Future Directions. Environmental Science & Technology, 2013, 47 (17), 9569-9583.
Shaffer D.L., Yip N.Y., Gilron J., and Elimelech M. Seawater desalination for agriculture by integrated forward and reverse osmosis: Improved product water quality for potentially less energy. Journal of Membrane Science, 2012, 415-416, 1-8.