Colloid Transport in Subsurface Media

  • Abadzic S.A. and Ryan J.N., 2001. Particle release and permeability reduction in a natural zeolite (clinoptilolite) porous medium.听Environmental Science & Technology听35, 4502-4508.听听Article from ACS
  • Backhus D.A., Ryan J.N., Groher D., MacFarlane J.K., and Gschwend P.M., 1993. Sampling colloids and colloid-associated contaminants in ground water.听Ground Water听31, 466-479.听听Article (pdf)
  • Bunn R.A., Magelky R.D., Ryan J.N., and Elimelech M., 2002. Mobilization of natural colloids from an iron oxide-coated sand aquifer: Effect of pH and ionic strength.听Environmental Science & Technology听36, 314-322.听听Article from ACS
  • DeNovio N.M., Saiers J.E., and Ryan J.N., 2004.听 Colloid movement in unsaturated porous media: Recent advances and future directions.听听Vadose Zone Journal听3, 338-351.听听Article (pdf)
  • Elimelech M., Nagai M., Ko C.-H., and Ryan J.N., 2000. The relative insignificance of mineral grain zeta potential to colloid transport in geochemically heterogeneous porous media.听Environmental Science & Technology听34, 2143-2148.听听Article (pdf)
  • Gao B., Saiers J.E., and Ryan J.N., 2004. 听Influence of pH on the deposition and mobilization of clay colloids in unsaturated porous media.听听Water Resources Research听40, doi:10.1029/2004WR003189.听听Article (pdf)
  • Gao B., Saiers J.E., and Ryan J.N., accepted. Pore-scale mechanisms of colloid deposition and mobilization during steady and transient flow through unsaturated granular media. Accepted to听Water Resources Research, October 2005.
  • Loveland J.P., Bhattacharjee S., Ryan J.N., and Elimelech M., 2003. Colloid transport in a geochemically heterogeneous porous medium: Aquifer tank experiment and modeling.听Journal of Contaminant Hydrology听65, 161-182.听听Article (pdf)
  • Loveland J.P., Ryan J.N., Amy G.L., and Harvey R.W., 1996. The reversibility of virus attachment to mineral surfaces.听Colloids and Surfaces A. Physicochemical and Engineering Aspects听107, 205-222.听听Article (pdf)
  • Ryan J.N., Illangasekare T.H., Litaor M.I., and Shannon R., 1998. Particle and plutonium mobilization in a macroporous soil during rainfall simulations.听Environmental Science & Technology听32, 476-482.听听Article from ACS
  • Ryan J.N. and Elimelech M., 1996. Colloid mobilization and transport in groundwater.听Colloids and Surfaces A. Physicochemical and Engineering Aspects听107, 1-56.听听Article (pdf)
  • Ryan J.N., Elimelech M., Baeseman J.L., and Magelky R.D., 2000. Silica-coated titania and zirconia colloids for subsurface transport field experiments.听Environmental Science & Technology听34, 2000-2005.听听Article from ACS
  • Ryan J.N. and Gschwend P.M., 1994. Effect of solution chemistry on the detachment of clay colloids from an iron oxide-coated sand.听Environmental Science & Technology听28, 1717-1726.听听Article (pdf)
  • Ryan J.N. and Gschwend P.M., 1994. Effect of ionic strength and flow rate on colloid detachment kinetics: Dependence on intersurface potential energy.听Journal of Colloid and Interface Science听164, 21-34.听听Article (pdf)
  • Ryan J.N. and Gschwend P.M., 1992. Effect of iron diagenesis on the transport of clay colloids in an unconfined sand aquifer.听Geochimica et Cosmochimica Acta听56, 1507-1522.听听Article (pdf)
  • Ryan J.N. and Gschwend P.M., 1991. Extraction of iron oxides from sediments using reductive dissolution by titanium(III).听Clays and Clay Minerals听39, 509-518.
  • Ryan J.N. and Gschwend P.M., 1990. Groundwater colloids in two Atlantic Coastal Plain aquifers: Field studies.听Water Resources Research听26, 307-322.听听Article (pdf).
  • Saiers, J.E., and Ryan, J.N., accepted. Colloid deposition on non-ideal porous media: The influences of collector shape and roughness on the single-collector efficiency. Accepted to听Geophysical Research Letters, September 2005.
  • Sun N., Elimelech M., Sun N.-Z., and Ryan J.N., 2001. A two-dimensional model of colloid transport in physically and geochemically heterogeneous porous media.听Journal of Contaminant Hydrology听49, 173-199.听听Article (pdf).
  • Sun N., Elimelech M., Sun N.-Z., and Ryan J.N., 2001. Sensitivity analysis and parameter identifiability in colloid transport in geochemically heterogeneous porous media.听Water Resources Research听37, 209-222.听听Article (pdf).

Microbe Transport in Groundwater

  • Abudalo R.A., Bogatsu Y.G., Ryan J.N., Harvey R.W., Metge D.W., and Elimelech M., 2005. The effect of ferric oxyhydroxide grain coatings on the transport of bacteriophage PRD1 and Cryptosporidium parvum oocysts in saturated porous media.听Environmental Science & Technology听39, 6412-6419.听听Article from ACS.
  • Bhattacharjee S., Ryan J.N., and Elimelech M., 2002. Virus transport in physically and geochemically heterogeneous subsurface porous media.听Journal of Contaminant Hydrology听57, 161-187.听听Article (pdf).
  • Harvey R.W. and Ryan J.N., 2004. PRD1 bacteriophage in groundwater viral transport, inactivation, and attachment studies.听听FEMS Microbiology Ecology听49, 3-16.听听Article (pdf).
  • Pieper A.P., Ryan J.N., Amy G.L., Illangasekare T.H., Harvey R.W., and Metge D.W., 1997. Transport of bacteriophage PRD1 through an unconfined sand aquifer: Effect of sewage-derived organic matter.听Environmental Science & Technology听31, 1163-1170.听听Article from ACS.
  • Renken R.A., Cunningham K.J., Zygnerski M.R., Wacker M.A., Shapiro A.M., Harvey R.W., Metge D.W., Osborn C.L., and Ryan J.N., 2005. Assessing the vulnerability of a municipal well field to contamination in a karst aquifer.听Environmental & Engineering Geoscience听11, 319-331.听听Article (pdf).
  • Ryan J.N., Elimelech M., Ard R.A., Harvey R.W., and Johnson P.R., 1999. Bacteriophage PRD1 and silica colloid transport and recovery in an iron oxide-coated sand aquifer.听Environmental Science & Technology听33, 63-73.
  • Ryan J.N., Harvey R.W., Metge D., Elimelech M., Navigato T.N., and Pieper A.P., 2002. Field and laboratory investigations of inactivation of viruses (PRD1 and MS2) attached to iron oxide-coated quartz sand.听Environmental Science & Technology听36, 2403-2413.听听Article from ACS.
  • Tufenkji N., Miller G.F., Ryan J.N., Harvey R.W., and Elimelech M., 2004. 听Transport of听Cryptosporidium听oocysts in porous media: Role of straining and physicochemical filtration.听Environmental Science & Technology听38, 5932-5938.听听Article (pdf).
  • Tufenkji N., Ryan J.N., and Elimelech M., 2002. The promise of bank filtration.听Environmental Science & Technology听36, A422-A428.听听Article (pdf).

Interactions of Mercury with Natural Organic Matter

  • Aiken G.R., Haitzer M., Ryan J.N., and Nagy K., 2003.听 Interactions between dissolved organic matter and mercury in the Florida Everglades.听听Journal de Physique IV听107, 29-32.听听Article (pdf).
  • Haitzer M., Aiken G.R., and Ryan J.N.,听 2003. Binding of mercury(II) to aquatic humic substances: Influence of pH and source of humic substances.听听Environmental Science & Technology听37, 2436-2441.听听Article from ACS.
  • Drexel R.T., Haitzer M., Ryan J.N., Aiken G.R., and Nagy K.L., 2002. Mercury(II) binding to two Florida Everglades peats: Evidence for strong binding and competition with dissolved organic matter released from the peat.听Environmental Science & Technology听36, 4058-4064.听听Article from ACS.
  • Haitzer M., Aiken G.R., and Ryan J.N., 2002. Binding of mercury(II) to dissolved organic matter: The role of mercury-to-DOM concentration ratio.听Environmental Science & Technology听36, 3564-3570.听听Article from ACS.
  • Ravichandran M., Aiken G.R., Reddy M.M., and Ryan J.N., 1998. Enhanced dissolution of cinnabar (mercuric sulfide) by aquatic humic substances.听Environmental Science & Technology听32, 3305-3311.听听Article (pdf).
  • Ravichandran M., Aiken G.R., Ryan J.N. and Reddy M.M., 1999. Inhibition of precipitation and aggregation of metacinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades.听Environmental Science & Technology听33, 1418-1423.听Article (pdf).听
  • Waples J.S., Nagy K.L., Aiken G.R., and Ryan J.N., 2005.听 Dissolution of cinnabar (HgS) in the presence of natural organic matter.听听Geochimica et Cosmochimica Acta听69, 1575-1588.听听Article (pdf).

Other Topics

  • Edwards M., Benjamin M.M., and Ryan J.N., 1996. Role of organic matter acidity in sorption of natural organic matter (NOM) to oxide surfaces.听Colloids and Surfaces A. Physicochemical and Engineering Aspects听107, 297-308.听听Article (pdf).
  • Keefe S.H., Barber L.B., Runkel R.L., and Ryan J.N., 2004.听 Fate of volatile organic compounds in a constructed wastewater treatment wetland.听听Environmental Science & Technology听38, 2209-2216.听听Article from ACS.
  • Keefe S.H., Barber L.B., Runkel R.L., Ryan J.N., McKnight D.M., and Wass R., 2004. Conservative and reactive solute transport in constructed wetlands.听听听Water Resources Research听40, doi:10.1029/2003WR002130.听听Article (pdf).
  • Maest A.S., Stallard R.F., Crerar D.A., and Ryan J.N., 1990. Trace metal and nutrient behavior in a polluted estuary with multiple freshwater sources.听Chemical Geology听81, 133-149.
  • Siddiqui M., Amy G., Ryan J., and Oden W., 2000. Membranes for the control of natural organic matter from surface waters.听Water Research听34, 3355-3370.听听Article (pdf).
  • Sueker J.K., Clow D.W., Ryan J.N., and Jarrett R.D., 2001. Effect of basin physical characteristics on solute fluxes in nine alpine/subalpine basins, Colorado, USA.听Hydrologic Processes听15, 2759-2769.听听Article (pdf).
  • Sueker J.K., Ryan J.N., Kendall C., and Jarrett R.D., 2000. Determination of hydrologic pathways during snowmelt for alpine/subalpine basins, Rocky Mountain National Park, Colorado.听Water Resources Research听36, 63-75.听听Article (pdf).

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