Dr. J.I. Gerhard - Publications

Chapters in Books

Gerhard, J.I. 2016. Smouldering Remediation. Online Textbook 'Remediapedia'. Authored exclusively by invited experts, peer-reviewed and supported by US Government SERDP and ESTCP programs. Available here

Gerhard, J.I., B.H. Kueper, and B.E. Sleep, 2014. Chapter 5: Modelling Source Zone Remediation, pp. 113-140. In 'Chlorinated Solvent Source Zone Remediation', Eds. B.H. Kueper, H.F. Stroo, and C.H. Ward. SERDP and ESTCP Remediation Technology Monograph Series. Springer, New York. 713 p.

Kueper, B.H. and J.I. Gerhard, 2014. Chapter 8: Hydraulic Displacement of Dense, Non-Aqueous Phase Liquids, pp. 219 - 250. In 'Chlorinated Solvent Source Zone Remediation', Eds. B.H. Kueper, H.F. Stroo, and C.H. Ward. SERDP and ESTCP Remediation Technology Monograph Series. Springer, New York. 713p.

Papers in Peer-Reviewed Journals

Zanoni, M.A.B.>, J.L.Torero, and J.I.Gerhard, 2017. Determination of the interfacial heat transfer coefficient between forced air and sand at Reynold's numbers relevant to smouldering combustion. International Journal of Heat and Mass Transfer. 114, 90-104. DOI: 10.1016/j.ijheatmasstransfer.2017.06.020.

Ebrahimzadeh, M., P. Tsourlos, J.I. Gerhard, 2017. Self-potential for monitoring soil remediation by smoldering: proof of concept. Near Surface Geophysics, In Press.

Chowdhury, A.I.A., J. Gerhard, D. Reynolds, and D.M. O'Carroll, 2017. Electrokinetics- enhanced permanganate delivery and remediation of contaminated low permeability porous media. Water Research, 113, pp. 215-222. doi: 10.1016/j.watres.2017.02.005.

Fabris,I., D. Cormier, J.I. Gerhard, T. Bartczak, M. Kortschot, J.L. Torero, Y.L. Cheng, 2017. Continuous, Self-Sustaining Smouldering Destruction of Simulated Faeces. Fuel, 190, pp. 58-66. doi: 10.1016/j.fuel.2016.11.014.

Kinsman, L., J. I. Gerhard, and J. L. Torero. 2016. Smoldering remediation and non-aqueous phase liquid mobility. Journal of Hazardous Materials, 325, 101-112. doi: /10.1016/j.jhazmat.2016.11.049.

Yerman, L., D. Cormier, I. Fabris, J. Carrascal, J. L. Torero, J. I. Gerhard, Y.L. Cheng, 2016. Potential Bio-oil Production from Smouldering. Waste and Biomass Valorization. pp. 1-10. doi: 10.1007/s12649-016-9586-1.

Molnar, I.L., P.C. Sanematsu, J.I. Gerhard, C.S. Willson, and D.M. O'Carroll, 2016. Quantified Pore-Scale Nanoparticle Transport in Porous Media and the Implications for Colloid Filtration Theory, Langmuir, 32 (31), pp 7841-7853. doi: 10.1021/acs.langmuir.6b01233.

Rashwan, T., JI Gerhard, G. Grant, 2016. Application of self-sustaining smouldering combustion for the destruction of wastewater biosolids. Waste Management, pp. 201-212. doi:10.1016/j.wasman.2016.01.037.

Yerman, L., H. Wall, J. Torero, JI. Gerhard, Y-L Cheng, 2016. Smouldering combustion as a treatment technology for faeces: sensitivity to key parameters. Combustion Science and Technology, 188(6): 968-981. doi: 0.1080/00102202.2015.1136299

Scholes, G., JI. Gerhard, G.P. Grant, D.W. Major, J.E. Vidumsky. 2015. Smoldering remediation of coal tar contaminated soil: pilot field tests of STAR. Environmental Science and Technology, doi: 10.1021/acs.est.5b03177, 1 - 9.

Molnar, I.L., W.P. Johnson, J.I. Gerhard, C.S. Willson, D.M. O'Carroll, 2015. Predicting colloid transport through saturated porous media: A critical review. Water Resources Research, doi: 10.1002/2015WR017318, 6804 - 6845.

Molnar, I.L., JI. Gerhard, C. Willson, D.M O'Carroll, 2015. The impact of immobile zones on the transport and retention of nanoparticles in porous media. Water Resources Research, doi: 10.1002/2015WR017167.

Mumford, K., N. Mustafa, JI. Gerhard, 2015. Probabilistic risk assessment of contaminant transport in groundwater and vapour intrusion following remediation of a contaminant source. Stochastic Environmental Research and Risk Assessment, doi: 10.1007/s00477-015-1156-8, 1-15.

C. Power, J.I. Gerhard, P. Tsourlos, P. Soupios, K. Simyrdanis, M. Karaoulis, 2015.Improved time-lapse electrical resistivity tomography monitoring of dense non-aqueous phase liquids with surface-to-horizontal borehole arrays . Journal of Applied Geophysics, 112, 1-13.

Hasan, T. JI Gerhard, R. Hadden, G. Rein, 2015. Self-sustaining Smouldering Combustion of Coal Tar for the Remediation of Contaminated Soil: Two-Dimensional Experiments and Computational Simulations. Fuel, 150: 288-297.

Yerman, L., RM Hadden, J Carrascal, I Fabris, D Cormier, JL Torero, JI Gerhard, M Krajcovic, P Pironi, YL Cheng, 2015. Smouldering combustion as a treatment technology for faeces: exploring the parameter space. Fuel, 147: 108-116.

Salman, M., J.I. Gerhard, D. W. Major, P. Pironi, and R. Hadden, 2015. Remediation of trichloroethylene-contaminated soils by STAR technology using vegetable oil smoldering. Journal of Hazardous Materials, 285: 346 - 355.

Switzer, C., P. Pironi, JI Gerhard, G. Rein, and JL Torero, 2014. Volumetric scale-up of smouldering remediation of contaminated soils. Journal of Hazardous Materials, 268, pp. 51-60.

C. Power,J.I. Gerhard, M. Karaoulis, P. Tsourlos, A. Giannopoulos, 2014. Evaluating four-dimensional time-lapse electrical resistivity tomography for monitoring DNAPL source zone remediation. Journal of Contaminant Hydrology, 162-163, 27-46.

Mustafa, N., K.G. Mumford, J.I. Gerhard and D.M. O'Carroll, 2014. A Three-Dimensional Numerical Model for Linking Community-wide Risk to Site Remediation, Journal of Contaminant Hydrology, doi: 10.1016/j.jconhyd.2013.10.003.

Molnar, I.L., C. S. Willson, D.M. O'Carroll, M.L. Rivers and J.I. Gerhard, 2014. A Method for Obtaining Silver Nanoparticle Concentrations Within a Porous Media via Synchrotron X-Ray Computed Microtomography, Environmental Science and Technology, doi: 10.1021/es403381s.

Power, C., Gerhard, J.I., Tsourlos, P., and A. Giannopoulos. 2013. A new coupled model for simulating the mapping of dense nonaqueous phase liquids (DNAPLs) using electrical resistivity tomography (ERT). Geophysics; 78(4), EN1-EN15, doi: 10.1190/geo2012-0395.1.

Drake, S.S., D.M. O'Carroll, and J.I. Gerhard, 2013. Wettability contrasts between fresh and weathered diesel fuels. Journal of Contaminant Hydrology, 144, pp. 46-57.

Brovelli, A., D.A. Barry, C. Robinson, and J.I. Gerhard, 2012. Analysis of acidity production during enhanced reductive dechlorination using a simplified reactive transport model. Advances in Water Resources, 43, pp. 14 - 27.

Alexandra, R., J.I. Gerhard, and B.H. Kueper, 2012. Hydraulic displacement of dense non-aqueous phase liquids for source zone stabilization, Journal of Ground Water, 50(5), pp. 765-774.

MacPhee, S.L., J.I. Gerhard, and G. Rein, 2012. A novel method for simulating smoldering propagation and its application to STAR (Self-sustaining treatment for active remediation), Environmental Modelling and Software, 31, pp. 84-98.

Pironi, P., G. Rein, C. Switzer, J Gerhard, JL Torero, 2011. Self-Sustaining Smoldering Combustion for NAPL Remediation: Laboratory Evaluation of Process Sensitivity to Key Parameters. Environmental Science and Technology, 45 (7), pp. 2980-2986.

Rotter, B.E., D. A. Barry, J. I. Gerhard, J. S. Small, 2011. Modeling the Effectiveness of U(VI) Biomineralization in Dual Porosity Porous Media. Journal of Hydrology, 402, pp. 14-24.

Molnar, I.L., D.M. O'Carroll, and J.I. Gerhard, 2011. Impact of surfactant-induced wettability alterations on DNAPL invasion in quartz and iron oxide-coated sand systems. Journal of Contaminant Hydrology, 119, pp. 1-12.

Robinson, C., J. Gerhard, B. Sleep, I. Kouznetsova, A. Kokkinaki, and D.A. Barry, 2010. Insights and modelling tools for designing and improving chlorinated solvent bioremediation applications. Contaminated Land: Applications in Real Environments, SAB4, September, pp. 1-6.

Kouznetsova, I., X. Mao, C. Robinson, D.A. Barry, J.I. Gerhard, P.L. McCarty, 2010. Biological reduction of chlorinated solvents: Batch-scale geochemical modeling, Advances in Water Resources, 33, pp. 969-986.

O'Carroll, D. M., K. G. Mumford, L. M. Abriola, and J. I. Gerhard, 2010. Influence of wettability variations on dynamic effects in capillary pressure, Water Resources Research, 46, W08505, doi:10.1029/2009WR008712.

Porter, M. L., D. Wildenschild, G.P. Grant, and J. I. Gerhard, 2010. Measurement and prediction of the relationship between capillary pressure, saturation, and interfacial area in a NAPL-water-glass bead system, Water Resources Research, 46, W08512, doi:10.1029/2009WR007786.

Wilson, V, C. Power, J.I. Gerhard, G.P. Grant, A. Giannopoulos, 2009. DNAPL mapping by ground penetrating radar examined via numerical simulation. Journal of Applied Geophysics, v. 69 (3-4), pp. 140-149.

Switzer, C., J.I. Gerhard, P. Pironi, G. Rein, and J.L. Torero. 2009. Self-sustaining smouldering combustion: A novel remediation process for non-aqueous phase liquids in porous media. Environmental Science and Technology, 43, pp. 5871-5877.

Robinson, C., D. A. Barry, P.L. McCarty, J.I. Gerhard, and I. Kouznetsova. 2009. pH control and buffer addition for enhanced source zone bioremediation of chlorinated solvents. Science of the Total Environment, 407, pp. 4560 - 4573.

Pironi, P., C. Switzer, G. Rein, J.I. Gerhard, J.L. Torero, 2009. Small-Scale Forward Smouldering Experiments for Remediation of Coal Tar in Inert Media. Proceedings of the Combustion Institute, 32 (2), pp. 1957-1964, doi:10.1016/j.proci.2008.06.184.

Rotter, B.E., Barry, D.A., Gerhard, J.I., and Small, J.S. 2008. Modeling U(VI) Biomineralization in Single- and Dual-Porosity Porous Media. Water Resources Research, 44, pp. W08437(1) - W08437(17),doi:10.1029/2007WR006301.

West, M.R., Grant, G.P., Gerhard, J.I., and B.H. Kueper, 2008. The influence of precipitate formation on the chemical oxidation of TCE DNAPL with potassium permanganate. Advances in Water Resources, 31, pp. 324-338.

Rotter, B.E., Barry, D.A., Gerhard, J.I., Small, J.S., Beadle, I., and B. Tahar, 2007. Parameter and process significance in mechanistic modelling of cellulose hydrolysis. Bioresource Technology, 99(13), pp. 5738-5748.

Grant G. P., J. I. Gerhard, 2007, Simulating the dissolution of a complex dense nonaqueous phase liquid source zone: 1. Model to predict interfacial area. Water Resources Research, 43, W12410, doi:10.1029/2007WR006038, pp. 1 - 14.

Grant G. P., J. I. Gerhard, 2007, Simulating the dissolution of a complex dense nonaqueous phase liquid source zone: 2. Experimental validation of an interfacial area-based mass transfer model, Water Resources Research, 43, W12409, doi:10.1029/2007WR006039, pp. 1 - 18.

Grant, G.P., Gerhard, J.I., and B.H. Kueper, 2007. Multidimensional validation of a numerical model for simulating a DNAPL release in heterogeneous porous media. Journal of Contaminant Hydrology, 92, pp. 109-128.

Grant, G.P., and J.I. Gerhard, 2006. Field scale impacts of spatially variable relative permeability in heterogeneous multiphase systems. Advances in Water Resources, 30, pp. 1144 - 1159.

Gerhard, J.I., Pang, T.W., and B.H. Kueper, 2006. Time scales of DNAPL migration in sandy aquifers investigated with numerical simulation. Ground Water, 45(2), pp. 147 - 157.

Gerhard, J.I., and B.H. Kueper, 2003. The influence of constitutive model parameters on the predicted migration of DNAPL in heterogeneous porous media. Water Resources Research, 39 (10), 1279, pp. 4-1 - 4-13.

Gerhard, J.I., and B.H. Kueper, 2003. Capillary pressure characteristics necessary for simulating DNAPL infiltration, redistribution, and immobilization in saturated porous media. Water Resources Research, 39(8), 1212, pp. 7-1 - 7-17.

Gerhard, J.I., and B.H. Kueper, 2003. Relative permeability characteristics necessary for simulating DNAPL infiltration, redistribution, and immobilization in saturated porous media. Water Resources Research, 39(8), 1213, pp. 8-1 - 8-16.

Gerhard, J.I., B.H. Kueper, G.R. Hecox, and R. Schwarz, 2001. Site-specific design for dual phase recovery and stabilization of pooled DNAPL., Ground Water Monitoring and Remediation, Spring: 71-88.

Gerhard, J.I., B.H. Kueper, and G.R. Hecox, 1998. The influence of waterflood design on the recovery of mobile DNAPLs. Ground Water, 36(2): 283-292.

Kueper, B.H. and J.I. Gerhard, 1995. Variability of point source infiltration rates for two-phase flow in heterogeneous porous media. Water Resources Research, 31(12): 2971-2980.

Papers in Refereed Conference Proceedings

Yerman, L., H. Wall, J.L. Torero, J.I. Gerhard, I. Fabris, D. Cormier, Y.L. Cheng, 2015. Self-sustaining smouldering combustion of faeces as treatment and disinfection method. Paper no. 3134733, APCChE 2015 Congress, Melbourne, Australia, Sept.

Browder, T., C. Switzer, P.Pironi, G. Rein, J.I.Gerhard, and J.L.Torero. 2010. Remediation of oil drilling waste using smoldering combustion. Combustion Institute, Spring Technical Meeting, Paper 10S-55, pp. 1-13.

Pang, TW, J.I. Gerhard, M. West, and B.H. Kueper. Numerical Simulation of ISCO to Remediate DNAPL in Fractured Rock, Proceedings of the 2007 U.S. EPA/ NGWA Fractured Rock Conference: State of the Science and Measuring Success in Remediation, pp.133-147.

West, M., J. Gerhard, and B. Kueper, 2007. Evaluation of DNAPL Source Zone Removal Technologies In Porous Media And Implications For Site Monitoring. Proceedings in the 60th Canadian Geotechnical Conference and 8th Joint CGS/IAH-CNC Groundwater Conference, Ottawa, Ontario, Canada, October 21-24, 2007, pp. 214-222.

Grant, G.P., J.I Gerhard and B.H. Kueper, 2005. The influence of relative permeability heterogeneity on DNAPL releases. Bringing Groundwater Quality Research to the Watershed Scale, IAHS Publ. 297, pp. 148-158.

Grant, G.P. and J.I Gerhard, 2004. Sensitivity of predicted DNAPL source zone longevity to mass transfer correlation model. Geoenvironmental Engineering: Integrated management of groundwater and contaminated land, R.N. Young and H.R. Thomas (eds), Telford Publishing, London, pp. 59-67.

Conference Papers Accepted on Abstract Submission

Zanoni, M. A. B., Gerhard, J. I., Torero, J. L., 2016. Experimental Measurements of the Volumetric Heat Transfer Coefficient between Forced Air and Sand at Reynold's Numbers Relevant to Smouldering Combustion, 3rd International Conference on Fluid Flow, Heat and Mass Transfer, Otttawa, Canada, May.

Wall, H. L. Yerman, J.L. Torero, J.I. Gerhard, I. Fabris, D. Cormier, Y.L. Cheng, 2015. Investigation on self-sustaining smouldering of faeces: Key parameters and scaling effects. Paper 10, SENG National Conference, Adelaide, Australia, Sept.

Rashwan, T.L., J. I. Gerhard, G. Grant, 2015. Self-sustaining smoldering as an energy efficient alternative for managing biosolids, Paper published in 9th U. S. National Combustion Meeting, Cincinnati, Ohio, May.

C. Switzer, P. Pironi, G. Rein, J.L. Torero and J.I. Gerhard, 2008. Experimental Studies of Self-Sustaining Thermal Aquifer Remediation (STAR) for Non-Aqueous Phase Liquid (NAPL) Sources. In: Proceedings from ConSoil 2008, Milano, Italy, 3-6 June.

Gerhard, J.I. and B.H. Kueper. 2002. The time required for a DNAPL release to cease migrating in heterogeneous porous media. In: Proceedings of the 3rd Joint IAH-CNC/CGS Conference - Ground and Water: Theory to Practice, Niagara Falls, October, 20-23, p. 681-688.

Gerhard, J.I. and B.H. Kueper. 1997. Design of a full-scale waterflood for the recovery of pooled DNAPL. In: Proceedings of the 50th Canadian Geotechnical Conference, G.E. Bauer (ed.), Ottawa, October 20-22, vol.2, p. 531-538.

Published Abstracts and Presentations to Professional Meetings

Rashwan, T. L., Gerhard, J. I., Grant, G. P., 2016. A new method for converting sewage to energy using self-sustaining smouldering. 14th International Environmental Specialty Conference at the Canadian Society of Civil Engineering Annual Conference, London, June.

R. Solinger, J.I. Gerhard, G. Grant, G. Scholes, 2016, STARx Thermal Treatment System: Optimizing Hotpad Systems with 2-D Numerical Modeling, platform presentation, CSCE 2016 Environmental Specialty Conference, London, June.

L. Kinsman, J.I. Gerhard, J.L. Torero. 2016. STAR Smouldering Remediation: Sensitivity to Contaminant Remobilization, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

J.I. Gerhard, J.L. Torero, and G.P. Grant. 2016. In Situ Remediation of Coal Tar by STAR: Self-Sustaining Propagation across Clean Gaps, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

G.J. Overbeeke, J.I. Gerhard, E.E. Edwards, L. Lomheim, and G.P. Grant. 2016. Microbial Subsurface Repopulation Following In Situ STAR Remediation, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

G. Scholes, G.P. Grant, D. Major, and C. Murray. 2016. STARx Systems for the Treatment of Contaminated Soils and Liquid Organic Wastes, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

R. Solinger, J.I. Gerhard, G. Grant, and G. Scholes. 2016. Two-Dimensional Numerical Modeling of STAR to Optimize Ex Situ Soil Treatment System Design, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

A.I. Chowdhury, C. de Boer, J.I. Gerhard, D. O'Carroll, D.A. Reynolds, and B.E. Sleep. 2016. Application of Electrokinetics for Oxidant Delivery and Complete Remediation of TCE-Contaminated, Low-Permeability Porous Media, Oral Presentation, Tenth Battelle International Conference on Remediation of Chlorinated Solvents and Recalcitrant Compounds, Palm Springs, CA. May.

Zanoni, M. A. B., Gerhard, J. I., Torero, J. L., Experimental Measurements of the Volumetric Heat Transfer Coefficient between Forced Air and Sand at Reynold's Numbers Relevant to Smouldering Combustion, 3rd International Conference on Fluid Flow, Heat and Mass Transfer, May 2016.

Gerhard, J.I., L. Kinsman, and J.L. Torero, 2015. Smouldering Remediation (STAR) Technology: Field Pilot Tests and First Full Scale Application. Abstract H42E-03, Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Molnar, I.L., JI. Gerhard, C. Willson, D.M O'Carroll, 2015. Silver Nanoparticle Transport Through Soil: Illuminating the Pore-Scale Processes. Abstract H13P-08, Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Power, C. J.I. Gerhard, P. Tsourlos, P. Soupios, K. Simyrdanis, M.Karaoulis, 2015. Geoelectrical monitoring of dense non-aqueous phase liquids with surface-to-horizontal borehole ERT. Geoelectrical Monitoring Conference, Vienna, Nov.

Brown, J., JI Gerhard, G.Grant, G.Scholes. 2015. In Situ Remediation of Coal Tar by STAR: Self-Sustaining Propagation Across Clean Sand Gaps. International Association of Hydrogeologists Conference, Waterloo, ON, Oct.

Solinger, R., JI Gerhard, G.Grant, G.Scholes, 2015. Two-Dimensional Numerical Modelling of STAR to Optimize Smouldering Combustion for NAPL Remediation. International Association of Hydrogeologists Conference, Waterloo, ON, Oct.

Zanoni, M. JI Gerhard, J. Torero, 2015. Smouldering Combustion of NAPLs in Soil: Advancing Process Understanding in the Context of STAR Remediation. International Association of Hydrogeologists Conference, Waterloo, ON, Oct.

Overbeeke, G., JI Gerhard, E. Edwards, L. Lomheim, 2015. Microbial Subsurface Repopulation Following In Situ STAR Remediation. International Association of Hydrogeologists Conference, Waterloo, ON, Oct.

Rashwan, T.L., J. I. Gerhard, G. Grant, 2015. Self-sustaining smoldering as an energy efficient alternative for managing biosolids, 9th U. S. National Combustion Meeting, Cincinnati, Ohio, May.

Cheng, Y.L., M.T. Kortschot, J.I. Gerhard, J.L. Torero, R. Saini, A.X. Fernandes, Z. Fishman, T. Bartczak, D. Liao, I. Fabris, D. Cormier, J.C. Tirrado, Luis Yerman, 2015. A household sanitation process based on integrated diversion/dewatering, drying/smoldering of solid waste, and pasteurization of liquid waste, Third International Fecal Sludge Management Conference, Hanoi, Viet Nam, January.

Gerhard, JI, C.Power, P. Tsourlos, M. Karaoulis, A. Giannopoulos, P. Soupios, K. Simyrdanis, 2014. Mapping Contaminant Remediation with Electrical Resistivity Tomography, Abstract H51M-0788. Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Molnar, I.L., DM. O'Carroll, JI. Gerhard, and CS. Willson, 2014. From Pore to Core: Do Engineered Nanoparticles Violate Upscaling Assumptions? A Microtomographic Investigation, Abstract H53A-0837. Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Power, C., JI Gerhard, P. Tsourlos, M. Karaoulis, A. Giannopoulos, P. Soupios, K.Simyrdanis, 2014. Improved Time-lapse ERT Monitoring of Dense Non-aqueous phase Liquids (DNPLs) with Surface-to-horizontal Borehole Arrays. 20th European Meeting of Environmental and Engineering Geophysics, Athens, Greece, Sep.

Gerhard, J.I, B.H.Kueper, and B.Sleep, 2014. Modeling Chlorinated Solvent Source Zone Remediation. Ninth International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May.

Gerhard, J.I., M. Salman, P. Pironi, R. Hadden, D.W. Major, G.P. Grant, 2014. Remediation of VOC-Contaminated Soils by STAR Technology using Vegetable Oil Smoldering. Ninth International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May

Kinsman, L., J.I. Gerhard, J.L. Torero, G. Scholes, C. Murray, 2013. Upscaling Self-Sustaining Treatment for Active Remediation (STAR): Experimental Study of Scaling Relationships for Smouldering Combustion to Remediate Soil, Abstract H41H-1351. Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Molnar, I.L., D.M. O'Carroll, C.S. Willson, and J.I. Gerhard, 2013. Abstract H33C-1368, The Influence of Pore Network Geometry on Silver Nanoparticle Transport through Soil, Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Hasan, T., J.I. Gerhard, R. Hadden, P. Pironi, G. Rein, 2013. Smouldering Combustion for Soil Remediation: Two-dimensional Experiments and Modelling. Abstract H41H-1352. Fall Meeting, American Geophysical Union, San Francisco, CA., Dec.

Drake, S.S., D.M. O'Carroll, and J.I. Gerhard, 2013. Hydraulic Property Alterations due to Wettability Induced Changes by Diesel Fuels. General Assembly, European Geosciences Union, Vienna, April.

Gavin Grant, Grant Scholes, David Major, Jason Gerhard, Paolo Pironi, Jose Torero, and Christine Switzer , 2013. Self-Sustaining Treatment for Active Remediation (STAR): Lessons Learned and Scale up from the Laboratory to the Field. Platform Presentation, AquaConSoil 2013: 12th International Conference on Groundwater Soil Systems and Water Resource Management, Barcelona, Spain, April.

Grant, G.P., D. Major, J.I. Gerhard, J.L. Torero, 2013. Self-Sustaining Treatment for Active Remediation (STAR): Ex Situ Applications to Treat Contaminated Soils, Waste Oils and Lagoon Sludges. Remediation Technology (Remtec) Summit, Denver, Colorado, March.

Gerhard, JI, JL Torero, JL, D. Major, G. Grant, G Scholes, P Pironi, T Hasan, M Salman, 2012, Abstract H33N-08, New Developments in Contaminant Remediation by Smoldering Combustion. 2012 Fall Meeting, American Geophysical Union, San Francisco, Calif., Dec.

Molnar, I.L., D.M. O'Carroll, C.S. Willson, and J.I. Gerhard, 2012. Abstract H11M-02, Imaging the Transport of Silver Nanoparticles Through Soil With Synchrotron X-ray Microtomography, 2012 Fall Meeting, American Geophysical Union, San Francisco, Calif., Dec.

Power, C., Karaoulis, M., Gerhard, J.I., Tsourlos, P., and A. Giannopoulos, 2012. Abstract H41K-03, Evaluating time-lapse ERT for monitoring DNAPL remediation via numerical simulation. 2012 Fall Meeting, American Geophysical Union, San Francisco, Calif., Dec.

Mumford, KG., N. Mustafa, J.I. Gerhard, and D.M. O'Carroll, 2012. Abstract H32F-07, Comparing risk assessment at the site and community scales via Monte Carlo simulations with a new coupled groundwater-vapour-indoor air model. 2012 Fall Meeting, American Geophysical Union, San Francisco, Calif., Dec.

Fishman, Z., Y.M.T. Jung, P. Pironi, M. Krajcovic, S. Melamed, M. Webb, J.L. Torero, J. I. Gerhard, L. L.L. Diosady, Y. Lawryshyn, E. Edwards, M.T. Kortschot, Y.L. Cheng, 2012. A Unit Operations Approach for Rapid Disinfection of Human Waste Based on Drying/Smoldering of Solid and Sand Filtration/UV Disinfection of Liquid Waste, Faecal Sludge Management Seminar, International Convention Centre, Durban, 29-31 October.

Kinsman, L. C. Robinson, J.I. Gerhard, G. Bickerton, and J. Roy. Characterizing Groundwater Flows in the Alberta Oil Sands using Major Ions. 39th International Association of Hydrologists Congress, Niagara Falls, September.

G. Scholes, J.I. Gerhard, D. Major, 2012. Scale up of Ex Situ Application of Self Sustaining Treatment for Active Remediation (STAR) - Column Scale to Prototype Reactor. 39th International Association of Hydrologists Congress, Niagara Falls, September.

Power, C., Gerhard, J.I., Tsourlos, P., and A. Giannopoulos, 2012. Time-lapse Monitoring of Subsurface Remediation with Electrical Resistivity Tomography Explored via Coupled-Model Simulations. 39th International Association of Hydrologists Congress, Niagara Falls, September.

Molnar, I.L., D.M. O'Carroll, C.S. Willson, and J.I. Gerhard, 2012. Employing Synchrotron X-Ray Microtomography to Study Silver Nanoparticle Transport Through Soils, 39th International Association of Hydrologists Congress, Niagara Falls, September.

Salman, M., J.I. Gerhard, and D. W. Major, 2102. Self-Sustaining Treatment for Active Remediation (STAR) for Trichloroethylene-Contaminated Soils via Vegetable Oil Smouldering, 39th International Association of Hydrologists Congress, Niagara Falls, September.

Rory M. Hadden, Paolo Pironi & Jason I. Gerhard, G. Grant, 2012. STAR (Self-sustaining Treatment for Active Remediation) Operability Across a Range of Soil and Contaminant Types. 39th International Association of Hydrologists Congress, Niagara Falls, September.

Hasan, T., J.I. Gerhard, P. Pironi, R. Hadden, G. Rein, J. Torero, 2012. Validation of Numerical Model for Self Sustaining Treatment for Active Remediation (STAR) for Two-Dimensional Smouldering front Propagation. 39th International Association of Hydrologists Congress, Niagara Falls, September.

Mustafa, N., K. Mumford, J.I. Gerhard, and D.M. O'Carroll, 2012. Assessing the Risk of Organic Contaminants to Groundwater and Vapour Intrusion at the Community Scale. 39th International Association of Hydrologists Congress, Niagara Falls, September.

G.P. Grant, G. Scholes,D. Major, M. Watling, J.I. Gerhard, J.L. Torero, and C. Switzer, 2012. Self-Sustaining Treatment for Active Remediation (STAR): In Situ Pilot Testing and Scale-Up for the Smoldering Combustion Treatment of Coal Tar. Eighth International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May.

G. Scholes, G.P. Grant, D. Major, J.I. Gerhard, P. Pironi, J.L. Torero, and C. Switzer, 2012. Self-Sustaining Treatment for Active Remediation (STAR): Overview of the Technology and Lessons Learned from Six Years of Treatability Testing. Eighth International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May.

Hadden, R. M., Gerhard, J. I., Rein, G., Torero, J. L., 2012, Influence of sample orientation and fuel diameter on smouldering of liquids for application to STAR, International Symposium on Combustion, Warsaw, August.

Molnar, I.L., D.M. O'Carroll, C.S. Willson, and J.I. Gerhard, 2012. Investigating Silver Nanoparticle Transport in Soil via Synchrotron X-Ray Microtomography, 22nd V.M. Goldschmidt Conference, Montréal, June.

Hadden, R. M., Gerhard, J. I., Rein, G., Torero, J. L., 2012, Influence of sample orientation and fuel diameter on smouldering of liquids for application to STAR (Self-sustaining Treatment for Active Remediation), Combustion Institute Canadian Section, Toronto, May.

Mustafa, N., K. Mumford, J.I. Gerhard, and D.M. O'Carroll, 2012. Assessing the Risk of Organic Contaminants at Off-Site Receptors, 2012 RPIC Federal Contaminated Sites National Workshop, April.

Power, C., Gerhard, J.I., Tsourlos, P., and A. Giannopoulos, 2012. Mapping Site Remediation with Electrical Resistivity Tomography Explored via Coupled-Model , Abstract H31D-1191, Fall Meeting of the American Geophysical Union, San Francisco, December.

Scholes, G., G.P. Grant, D. Major, J.I. Gerhard, J.L. Torero, C. Switzer, 2011. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids. International Petroleum and Biofuels Environmental Conference, Houston, Texas, November.

Dave Thomas, J.I. Gerhard, G. Grant, T. Peargin, R. Hoffmann, 2011. Sustainable Facilitated Environmental (SaFE) Thermal Treatment, International Petroleum and Biofuels Environmental Conference, Houston, Texas, November.

Scholes, G., G.P. Grant, D. Major, J.I. Gerhard, J.L. Torero, C. Switzer, 2011. Self Sustaining Treatment for Active Remediation (STAR). International Sites and Spills Expo, Toronto, November.

Grant, G.P., G. Scholes, D. Major, J.I. Gerhard, 2011. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids. International Sites and Spills Expo, Toronto, Ontario, Canada, November.

Grant, G.P., G. Scholes, D. Major, J. Vidumsky, 2011. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids. Railroad Environmental Conference 2011, University of Illinois at Urbana-Champaign, October.

Grant, G.P., D. Major, G. Scholes, J.I. Gerhard, J.L. Torero, C. Switzer, 2011. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Recalcitrant Compounds. ABAS, Sao Paolo, Brazil, October.

Grant, G.P., G. Scholes, D. Major, J.I. Gerhard, J.L. Torero, C. Switzer, 2011. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids. 28th Biennial Groundwater Conference and 20th GRA Annual Meeting, Sacramento, California, October.

Molnar, I.L., D.M. O'Carroll, J.I. Gerhard and C.S. Willson, 2012. Impact of mineral isoelectric point on subsurface/NAPL wettability, American Chemical Society Colloids and Surface Science Symposium, Montreal, June.

Grant, G.P., D. Major, J.I. Gerhard, J.L. Torero, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Scientific Principles and Field Applications of the Technology. International Petroleum and Biofuels Environmental Conference, Houston, Texas, November.

Grant, G.P., D. Major, J.I. Gerhard, J.L. Torero, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Scientific Principles and Field Applications for NAPL-Contaminated Soils. Remediation Technology, Calgary, Alberta, Canada, October.

Grant, G.P., D. Major, J.I. Gerhard, J.L. Torero, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids. Remtec 2011, Chicago, Illinois, May.

C. Switzer, J.I. Gerhard, P. Pironi, G. Rein, J. Torero, 2010. Field Trials of In Situ Smouldering Remediation for Non-Aqueous Phase Liquid Contaminated Soils, CONSOIL, Salzburg, Austria, September 22-24.

G.P. Grant, D.Major, J.I. Gerhard, J. Torero, and C. Switzer, 2010, Self-Sustaining Treatment for Active Remediation (STAR): Overview of Scientific Principles and Initial Field Applications for the Treatment of Coal Tar in Soils, Geocanada, Calgary, Alberta, May 10-14.

A Brovelli, A Barry, C Robinson, and J Gerhard, 2010, Abstract H41A-1074, Influence of physical factors and geochemical conditions on groundwater acidification during enhanced reductive dechlorination. 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

Molnar, I., D.M O'Carroll, J.I. Gerhard, and C.S. Wilson, 2010, Abstract H53C-1054, Impact of mineral isoelectric point on subsurface/NAPL wettability. 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

MacPhee, S.L., J.I. Gerhard, G. Rein, and P. Pironi, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Numerical Modelling of a New Technique for the Remediation of MPG Sites. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

Gerhard, J.I., J. Torero, C. Switzer, P. Pironi, G. Rein, G.P. Grant, and D.Major, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Introduction of a New Technique for the Remediation of MPG Sites. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

G.P. Grant, D.Major, J.I. Gerhard, J. Torero, C. Switzer, and P. Pironi, 2010. Self-Sustaining Treatment for Active Remediation (STAR): In Situ Field Application for the Treatment of Coal Tar in Soils. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

Kouznetsova, I., J.I. Gerhard, X. Mao, D. A. Barry, C. Robinson, A. Brovelli, M. Harkness, E. E. Mack, S. Dworatzek, 2010. Biogeochemical Processes that Influence the Rate and Extent of Anaerobic Dechlorination. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

Robinson, C., A. Brovelli, D. A. Barry, J.I. Gerhard, 2010, Acidity Production and Buffer Requirements for In Situ Bioremediation of Chlorinated Solvents. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

Major, D., G.P. Grant, , J.I. Gerhard, J. Torero, C. Switzer, and P. Pironi, 2010. Self-Sustaining Treatment for Active Remediation (STAR): Scientific Principles and Overview of the Technology. Proceedings of the Seventh International Conference Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California; May 24-27.

Major, D., G.P. Grant, , J.I. Gerhard, J. Torero, and C. Switzer, 2010. Self-Sustaining Treatment For Aquifer Remediation (STAR): Initial Field Applications for the Treatment of Coal Tar in Soils, EPRI MGP Symposium, San Antonio, Texas, January 27-29.

G.P. Grant, D.Major, J.I. Gerhard, J. Torero, C. Switzer, and P. Pironi 2009, Self-Sustaining Treatment for Active Remediation (STAR): Pilot Studies for the Treatment of Hydrocarbon-Impacted Sites. 16th International Petroleum and BioFuels Environmental Conference (IPEC), Houston, Texas, November 3-5.

K. G. Mumford, D. M. O'Carroll, L.M. Abriola, and J.I. Gerhard. 2009, The Influence of Wettability Variations on Dynamic Effects in Capillary Pressure, Eos Trans. AGU, 90(53), Fall Meeting Suppl., Abstract H43E-1076.

S. MacPhee, P Pironi, JI Gerhard, C Switzer, and G Rein, 2009, Numerical Modelling of Smouldering Combustion as a Remediation Technology for NAPL Source Zones, Eos Trans. AGU, 90(22), Jt. Assem. Suppl., Abstract # H16A-02.

C. Power, J.I. Gerhard, and A.Giannopoulos, 2009. Mapping Subsurface Remediation With Ground Penetrating Radar, Eos Trans. AGU, 90(22), Jt. Assem. Suppl., Abstract # H13A-02.

I Kouznetsova, J I Gerhard, X Mao, D A Barry, C Robinson, A Brovelli, M Harkness, A Fisher, E E Mack, J A Payne, S Dworatzek, J Roberts, 2008, Parameter Sensitivity and Laboratory Benchmarking of a Biogeochemical Process Model for Enhanced Anaerobic Dechlorination, Eos Trans. AGU, 89(53), Fall Meeting Suppl., Abstract H31D-0898.

P Pironi, C Switzer, G Rein, J L Torero, J I Gerhard, 2008, Column Experiments of Smouldering Combustion as a Remediation Technology for NAPL Source Zones, Eos Trans. AGU, 89(53), Fall Meeting Suppl., Abstract H34C-03.

A Brovelli, C Robinson, A Barry, I Kouznetsova, J Gerhard, 2008, Optimization of buffer injection for the effective bioremediation of chlorinated solvents in aquifers, Eos Trans. AGU, 89(53), Fall Meeting Suppl., Abstract H31D-0899.

J I Gerhard, C Power, V Wilson, A Giannopoulos, G Grant, 2008, Mapping by Ground Penetrating Radar Investigated via Numerical Simulation, Eos Trans. AGU, 89(53), Fall Meeting Suppl., Abstract H51G-0923.

C Switzer, P Pironi, P Reszka, G Rein, JL Torero. JI Gerhard, 2008, Scaling-up Experiments of Smouldering Combustion as a Remediation Technology for Contaminated Soil, 9th Symposium of the International Association of Fire Safety Science, Karlsruhe, September.

P. Pironi, C. Switzer, G. Rein, J.I. Gerhard, J.L. Torero, 2008, Laboratory Experiments of Smouldering Combustion as a Remediation Technology for Contaminated Soil. 9th Symposium of the International Association of Fire Safety Science, Karlsruhe, September.

P. Pironi, C. Switzer, G. Rein, J.I. Gerhard, J.L. Torero, 2008, Small-Scale Forward Smouldering Experiments for Remediation of Coal Tar in Inert Media, 32nd International Symposium on Combustion, Montreal, August.

C. Switzer, P. Pironi, G. Rein, J.L. Torero and J.I. Gerhard,2008, Self-sustaining Treatment for Active Remediation (STAR) (invited). Scottish Brownfield and Contaminated Land, Glasgow, Scotland, 18-19 June.

C. Switzer, P. Pironi, G. Rein, J.L. Torero and J.I. Gerhard, 2008, Laboratory and Field Studies of Smouldering Technology for Aquifer Remediation (STAR) for Non-Aqueous Phase Liquid (NAPL) Sources, ConSoil 2008, Milano, Italy, 3-6 June (Invited, Keynote).

Gerhard, J.I., and G.P. Grant, 2008. Validation of an Interfacial Area-Based Mass Transfer Model for Simulating DNAPL Dissolution. Gordon Conference: Flow and Transport in Porous Media, Oxford, UK, June.

C. Robinson, D. A. Barry, I. Kouznetsova and J. I. Gerhard, 2008. BUCHLORAC: Program for predicting the buffer requirement for enhanced anaerobic bioremediation of chlorinated solvents, European Geosciences Union General Assembly, Vienna, Austria, 13 - 18 April.

C. Switzer, P. Pironi, A. Fuentes, G. Rein, J.L. Torero and J.I. Gerhard, 2007, STAR: Smouldering Technology for Aquifer Remediation, A Novel In-Situ Remediation Approach for NAPL Source Zones, European Conference on Natural Attenuation and In-Situ Remediation, Frankfurt, Germany, 19-21 November.

P. Pironi, C. Switzer, G. Rein, A. Fuentes, J.L. Torero. J.I. Gerhard, 'Smouldering Technology for Aquifer Remediation (STAR) Proof of Concept and Process Sensitivity Experiments'. Poster at the Geological Society Bicentenary Conference, London, September 2007.

Gerhard, J.I., Switzer, C, P Pironi, G Rein, JL Torero, 2008. Self-Sustaining Treatment for Active Remediation (STAR): A Novel Remediation Technique for Pooled and Residual NAPL, Sixth International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May.

Pironi, P., C Switzer, A Fuentes, G Rein, JL Torero. JI Gerhard, 2007. Small-Scale Experiments of In-Situ Smouldering Combustion for the Remediation of Contaminated Land. Proceedings of the 21st International Colloquium on the Dynamics of Explosions and Reactive Systems, Poitier, July.

Rein, G., JI Gerhard, MIJ van Dijke, KS Sorbie, A Ryazanov, 2007. On the Immobilization of DNAPL in Porous Media due to Capillary Pressure Hysteresis, Proceedings of the 5th Conference on Modelling Permeable Rocks, Institute of Mathematics and its Applications, Edinburgh, March.

Switzer, C, P Pironi, G Rein, JI Gerhard, JL Torero, 2007. Burning Hazardous Liquids in the Soil as a Remediation Technology, Proceedings of the International Meeting of Fire Effects on Soil Properties, Barcelona, February.

Kouznetsova, I., J.I.Gerhard, X Mao, C Robinson, A D Barry, M Harkness, E E Mack, S Dworatzek, 2007, Comprehensive Model for Enhanced Biodegradation of Chlorinated Solvents in Groundwater, Eos Trans. AGU, 88(52), Fall Meeting Suppl., Paper H33H-1718.

Kouznetsova, I., X. Mao, J. I. Gerhard, D.A. Barry, Mark Harkness , E.E. Mack, Sandra Dworatzek, 2007. Modelling the Role of Partitioning Substrates in DNAPL Column Studies. Proceedings of the 9th International In Situ and On-Site Bioremediation Symposium, Baltimore, Maryland.

Zeeb, P. G. Wealthall, M. Rivett, M. Harkness, J.I., Gerhard, L. Houlden, 2007. Project SABRE - Quantifying Bioremediation of TCE DNAPL Source Zone Treatment Through a Robust, Interdisciplinary Applied Research Program. Proceedings of the 6th International Conference for the Remediation of Chlorinated and Recalcitrant Compounds, Baltimore, Maryland.

Pironi, P., G. Rein, C Switzer, J Gerhard, JL Torero, 2006. On the Ignition and Propagation of Subsurface Smouldering Fires, Proceedings of the 31st International Symposium on Combustion, Heidelberg, August.

Gerhard,J.I., J.L.Torero, C.Switzer, P.Pironi, G.Rein, 2006. In Situ Smouldering: A Novel Technique for Remediating NAPL Source Zones. Eos Trans. AGU, 87(52), Fall Meeting Suppl., Paper H24A-01(invited).

Mao, X., J.I. Gerhard, and D.A. Barry, 2006. Factors Influencing TCE Anaerobic Dechlorination Investigated via Simulations of Microcosm Experiments, Eos Trans. AGU, 87(52), Fall Meeting Suppl., Paper H11C-1276.

Rotter, B.E., J.I. Gerhard, and D.A. Barry, 2006. Effectiveness of U(VI) Bioremediation by DMRB in Dual Porosity Soils Explored via Numerical Modeling, Paper H11E-1290.

Mao, X., J.I.Gerhard, and D.A. Barry, 2006. Modelling the influence of electron donor fermentation on TCE dechlorination. Proceedings of the 5th International Conference for the Remediation of Chlorinated and Recalcitrant Compounds.

Mao, X., J.I.Gerhard, and D.A. Barry, 2006. Modelling process interaction in DNAPL enhanced bioremediation column studies. Proceedings of the 5th International Conference for the Remediation of Chlorinated and Recalcitrant Compounds.

B.H. Kueper, K.A. White, M.J. Gefell, T.L. Blazicek, J.I. Gerhard, and J. Shi, 2006. Design of a passive NAPL collection barrier. Proceedings of the 5th International Conference for the Remediation of Chlorinated and Recalcitrant Compounds. Abstract E-48.

Grant, G.P, and J.I. Gerhard, 2005. Formulation and validation of an interfacial area model for the explicit description of rate limited mass transfer in multiphase systems, Eos Trans. AGU, 86(52), Fall Meeting Suppl., Paper H21H-08.

Grant, G.P, and J.I. Gerhard, 2005. Validating a multiphase flow numerical model for DNAPL migration in two-dimensional heterogeneous porous media, Eos Trans. AGU, 86(52), Fall Meeting Suppl., Paper H21H-02.

Rotter, B.E., Barry, D.A., Gerhard, J.I., Small, J.S., Beadle, I., and B. Tahar, 2005. Parameter and process significance in mechanistic modeling of cellulose hydrolysis, Eos Trans. AGU, 86(52), Fall Meeting Suppl., Paper B31A-0984.

Mao, X., Gerhard, J.I., and D.A., Barry, 2005. Model parameter variability for enhanced anaerobic bioremediation of DNAPL source zones, Eos Trans. AGU, 86(52), Fall Meeting Suppl., Paper H23A-1417.

Pang, T., Gerhard, J.I., and Kueper, B.H., 2004. DNAPL mobility in heterogeneous porous media: Sensitivity of migration times to source characteristics and release location parameters. Eos Trans. AGU, 85(47), Fall Meeting Suppl., Paper H31B-0375.

Kueper, B.H., Gerhard, J.I., and Pang, T., 2004. DNAPL migration in heterogeneous porous media. Eos. Trans. AGU, 85(47), Fall Meet. Suppl., Paper H43H-08 (invited).

Grant, G.P., Gerhard, J.I. and Kueper, B.H., 2003. Spatially variable relative permeability in heterogeneous multiphase systems. Eos Trans. AGU, Fall Meet. Suppl., Paper H11G-0933.

Kueper, B.H., J.I. Gerhard, and D.A. Reynolds. 2003. The timescales of DNAPL migration. Geophysical Research Abstracts, vol. 5, Paper EAE03-A-07989 (invited).

Gerhard, J.I., and B.H. Kueper. 2002. Critical phenomena of nonwetting fluid infiltration, redistribution, and immobilization in saturated porous media. Eos Trans. AGU, 83(47),Fall Meet. Suppl., Paper H71B-0805.

Gerhard, J.I., and B.H. Kueper. 2002. The Influence of constitutive model parameters on predictions of DNAPL migration in heterogeneous porous media. Eos Trans. AGU, 83(47), Fall Meet. Suppl., Paper H62B-0850.

Gerhard, J.I., and B.H. Kueper. 1994. The sensitivity of DNAPL migration to source strength and release location in heterogeneous porous media. Eos Trans. AGU, Fall Meet. Suppl., Paper H32D-05.

Invited Presentations at Symposia

Gerhard, JI. 2015. Maturation of Smouldering Remediation (STAR) Technology and Full Scale Application. University Consortium for Field-Focused Groundwater Contamination Research, University of Guelph, June. Invited Speaker.

Gerhard, JI, C.Power, P. Tsourlos, M. Karaoulis, A. Giannopoulos, P. Soupios, K. Simyrdanis, 2014. Mapping Contaminant Remediation with Electrical Resistivity Tomography. Fall Meeting, American Geophysical Union, San Francisco, CA., Dec. Invited Speaker.

Gerhard, JI., 2014. Innovative Remediation Technologies. Ontario-China Soil Remediation Workshop, Ministry of Research and Innovation, Toronto, Ontario, Dec. Invited Speaker.

Gerhard, J.I., 2014. Remediation of VOC-Contaminated Soils by STAR Technology using Vegetable Oil Smoldering. Ninth International Conference Remediation of Chlorinated and Recalcitrant Compounds. Monterey, California, May. Invited Speaker.

Gerhard, JI., 2013. Reinventing the Toilet. 3rd International Congress on Subsurface Environment. Sao Paolo (Brazil), October 1-3. Invited Speaker.

Gerhard, J.I., 2013. RESTORE Research Overview. DOW Environmental Research Centre, Midland, MI. Invited Speaker.

Gerhard, JI., 2013. Self-sustaining Smouldering Destruction: A Novel Method for Remediating Soil Contaminated with Hazardous Industrial Liquids. International Conference on Environmental Pollution and Remediation. Invited Keynote. Toronto, July 15-17.

Gerhard, JI, GP Grant P Pirioni, JL Torero, 2013. Can STAR be applied to light hydrocarbons? Remediation Technology, 9th Annual Hydrocarbon Summit: Transport, Fate and Remediation of Hydrocarbons in the Subsurface, University of Waterloo, August 29. Invited Speaker.

Gerhard, JI, 2012. STAR Remediation Technology, 8th Annual Hydrocarbon Summit: Transport, Fate and Remediation of Hydrocarbons in the Subsurface, University of Waterloo, August 8.

Gerhard, J.I., Expert Panel: Building Smart, Connected Communities - From the Ground Up, OCE Discovery 2012, Toronto, May.

Gerhard, J.I. and G.P. Grant, 2011. The STAR technology and plans for Borden demonstration Oxygenates & Hydrocarbons Summit, July 13.

Gerhard, J.I., 2011. Field Trials of STAR for In Situ Coal Tar Destruction. University Consortium for Field-Focused Groundwater Contamination Research. Annual Meeting, University of Guelph, June 2.

Gerhard, J.I., 2010. NAPL remediation via in situ smoldering (STAR). University Consortium for Field-Focused Groundwater Contamination Research. Annual Meeting, University of Guelph, May 19.

Gerhard, J.I., 2009. Advancing the quantitative understanding of reductive dechlorination using detailed process models. Addressing the Challenges of Source Zone Bioremediation Symposium, London, United Kingdom, October 12.

Gerhard, J.I., 2008. Self-sustaining Treatment for Active Remediation (STAR): A New Approach for Destroying Coal Tar and Other Hazardous Industrial Liquids in Soil. Canadian Brownfields Conference, Toronto, Ontario, October 22.

Gerhard, J.I., 2008, Developing New Strategies to Clean Up Contaminated Former Industrial Sites, Impact of Industry on Human Health Symposium, Environment and Sustainability Program, U. Western Ontario, October.

Gerhard, J.I., 2008. DNAPL Source Zones: Mobility and Treatment, The General Electric Technology Transfer Symposium, Cleveland, Ohio, June 27.

Gerhard, J.I., 2008. Hydrogeological Practice in the 21st Century, International Association of Hydrologists-Canadian Geotechnical Society Seminar, Kitchener, Canada, February 13.

Gerhard, J.I. 2007. Evolution of DNAPL Source Zones, Groundwater Resources Association of California DNAPL-2 Symposium, San Francisco.

Gerhard, J.I. 2006. In Situ Smouldering: A Novel In Situ NAPL Remediation Technique. Fall Meeting of the American Geophysical Union, December, San Francisco, USA. With 11,000 attendees and 53 Hydrology sessions, this is the leading academic conference in Geosciences.

Gerhard, J.I. 2005. How Long Until a DNAPL Release Stops Migrating? Groundwater Resources Association of California DNAPL Symposium, San Francisco.

Gerhard, J.I. 2006. NAPLs: Current Knowledge and Urgent Research Needs. Soil-to-Water Pollution Transfers Symposium, University of Nottingham, Nottingham, United Kingdom.

Gerhard, J.I. 2003. Subsurface Contamination by DNAPLs, Geological Society, Scotland Regional Chapter, Glasgow, United Kingdom.

Invited Talks at Universities

Gerhard, J.I., 2016. Playing with Fire: Innovative Environmental Technologies using Combustion. Universidad Technica Federico Santa Maria, Valparaiso, Chile.

Gerhard, J.I., 2014. Reinventing the Toilet, A Smouldering Approach to Health and Sanitation. University of Edinburgh, Edinburgh, United Kingdom.

Gerhard, J.I., 2014. STAR: Research Overview. University of Strathclyde, Glasgow, United Kingdom.

Gerhard, J.I., 2011. Multiphase Flow Modelling. University of Queensland, Brisbane, Australia.

Gerhard, J.I., 2011. Mapping the Remediation of Contaminated Sites with Geophysics: Exploring Field-Scale GPR and ERT via Numerical Modelling, University of New South Wales, Sydney, Australia.

Gerhard, J.I., 2011. Self-Sustaining Smouldering Destruction: A New Technique for the Remediation of Soil and Groundwater, University of New South Wales, Sydney, Australia.

Gerhard, J.I., 2011. Geoenvironmental Remediation: Experiments, Modelling, and Field Trials. University of Queensland, Brisbane, Australia.

Gerhard, J.I. 2011. Smouldering Combustion for Remediation: Bench to Field Scale. Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland.

Gerhard, J.I. 2011. NAPL Remediation via STAR. University of Edinburgh, Edinburgh, UK.

Gerhard, J.I., 2010. Invited Lecturer for International Summer Graduate Course: Role of Interfacial Area in Two-Phase Flow and Transport in Porous Media, Utrecht, the Netherlands, 20-24 July 2009.

Gerhard, J.I. 2008. Current Advances in DNAPL Remediation Research. Queen's University, Canada.

Gerhard, J.I. 2007. In Situ Smouldering of Organic Liquids. Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland.

Gerhard, J.I. 2006. Coupling Subsurface Processes to Address Geotechnical Challenges. University of Western Ontario, London, Canada.

Gerhard, J.I. 2003. Subsurface Contamination by DNAPLs: Local Scale Physics to Field Scale Implications, University of Queensland, Brisbane, Australia, April 8.

Gerhard, J.I. 2003. The Timescale of Contaminant Migration in the Subsurface, University of Western Australia, Perth, Australia.

Gerhard, J.I. 2003. Addressing Real-World DNAPL Problems with Numerical Modelling Tools, University of Western Australia, Perth, Australia.

Gerhard, J.I. 2002. Dense Nonaqueous Phase Liquids In Heterogeneous Porous Media, Tsinghua University, Beijing, China.

Gerhard, J.I. 2002. The Migration of Hazardous Industrial Liquids in the Subsurface. Queen's-RMC GeoEngineering Centre, Queen's University, Kingston, Canada.

Invited Co-Delivery of Short Courses

Fate and Remediation of Organic Contaminants in Subsurface Environment II, Online course run by Hidroplan (Brazil); 73 attendees across the world, Jan - May, 2014.

Fate and Remediation of Organic Contaminants in Subsurface Environment, Online course run by Hidroplan (Brazil); 89 attendees across the world, Jan - May, 2013.

DNAPL Bioremediation Professional Short Course, London, United Kingdom, October 13, 2009.

Invited Addresses to Non-Technical Audiences

Gerhard, JI. 2015. Mock lecture to potential undergraduates on environmental engineering. Western Engineering, March 14.

Gerhard, JI, 2015. Playing with Fire: Using Combustion to Solve Environmental Challenges. CEE Idea Exchange, Western University. March 5.

Gerhard, JI, 2015. Reinventing the Toilet to Address Worldwide Sanitation Challenges. Canadian Society of Civil Engineers/Canadian Geotechnical Society. London and District Section Dinner Program. January 21.

Gerhard, JI, 2014. Water Research presentation to Multi-Disciplinary Perspectives of Sustainability research seminar, January 15.

Gerhard, JI, 2013. Western Reinvent the Toilet Project. All Staff Meeting, Faculty of Engineering, April 11.

Gerhard, JI. 2013. Mock lecture to potential undergraduates on environmental engineering. Western Engineering, March 9.

Gerhard, J.I., 2010. Innovative and sustainable remediation technologies for brownfield sites. Thinking Ahead: Canada Research Chairs Conference, Toronto, November 24-25.

Gerhard, JI, 2010. Groundwater contamination and innovative methods of remediation. Symposium Site 41-The Beginning of the End of Landfills? and Zero Waste Workshop, London, September 13-15.

Gerhard, JI, 2010. Brownfield Restoration: Addressing the Industrial Pollution of Urban Environments, Research Showcase at WorlDiscoveries, Feb. 5.

Gerhard, JI, 2010. Geoenvironmental Restoration Engineering. Western Researchers Spotlight keynote for the 2010 Western Staff & Leaders' Conference. Feb. 19.

Gerhard, JI., 2010. Cleaning-Up our Legacy of Industrial Pollution. Researchers Spotlight keynote for the 2010 Human Resources Professionals Conference. June 2.

Gerhard, JI., 2008. Developing New Strategies to Clean Up Contaminated Former Industrial Sites, Interdisciplinary Sustainability Research Luncheon, October 1.

Accepted for Publication (i.e., in press, forthcoming) (Final version accepted, documentation or contract attached)

Patents

Gerhard, J.I. and Torero, J.L., 2005. STAR In-Situ Subsurface Remediation Technology, UK Patent Office, GB 0525193.9, Filed 10/12/2005.

Gerhard, J.I., J.L. Torero, C. Switzer, P.Pironi, G.Rein, 2006. A Method for Remediating Contaminated Land. International PCT Filing, PCT/GB2006/004591, Filed 8/12/2006 (Priority Date 10/12/2005). Granted Patents:

  • United States (US 8,132,987 B2)
  • Australia (AU 2006323431 B9)
  • Japan (JP4934832)
  • China (ZL 2006 8 0052554.X)
  • Pending: EU, Canada, Brazil.

Grant, G., D. Major, JI Gerhard, JL Torero, G. Scholes. Method for Volumetric Reduction of Organic Liquids. International PCT Filing, PCT/US12/35248, Files 27/04/2012, Pending.