H Gecol Home Page

Research Interest

Research Grants:

  1. H. Gecol (PI) “Recycling Waste Cooking Oil to Create a Self-sustaining Biodiesel Power Supply for University Vehicles and Emergency Power Generators”, Nevada Division of Environmental Protection (NDEP), July 1, 2006- June 30, 2007.
     

  2. H. Gecol (PI) “Competitive priced biodiesel using innovative process and feed while decreasing NOx emissions”, EPA, December 24, 2004 – December 22, 2006.
     

  3. H. Gecol (PI) “University of Nevada Reno Biodiesel Pilot Unit for a Green Campus (Phase II)”, Washoe County District Health Department Air Quality Management Division, July 01, 2004 -December 22, 2006.
     

  4. H. Gecol (PI) “Competitive priced biodiesel using innovative process and feed while decreasing NOx emissions”, Applied Research Initiative, July 01, 2004 - December 22, 2006.
     

  5. H. Gecol (co-PI) “Supramolecular Proton Exchange Membranes for Fuel Cells”, EPA-P3, October 01, 2004 – September 30, 2005.
     

  6. H. Gecol (PI) “Conversion of University of Nevada, Reno Campus Fleet from Petroleum Diesel to B20 Biodiesel and Development and deployment of Cost effective Biodiesel Production Technology using waste cooking oil and waste potato”, Washoe County District Health Department, June15, 2003 – June 30, 2004.
     

  7. H. Gecol (PI) “Biodiesel Production Technology, State of Nevada”, Applied Research Initiative, June 30, 2003 - June 30, 2004.
     

  8. H. Gecol (co-PI) NSF Infrastructure, Seed Grant Proposal, Synthesis and Characterization of Polymeric / Nanoparticle Magneto-rheological Fluids for Microchannel Flows, January 30, 2003  - January 29, 2005.
     

  9. H. Gecol (PI), “Research Equipment Grant for Environmental Research Projects”, NSF-EPSCoR RING-TRUE I Arid Lands Program, September 1, 2001-July 30, 2002.
     

  10. National Science Foundation, EPSCoR. Research infrastructure for Nevada’s growth: Targeting research with uniqueness and excellence II (RING-TRUE II) [H. Gecol  is one of the 13 investigators, A nanotechnology Program in Smart Material System and Devices], August, 2002 – August, 2005

Publications

I. In refereed journals:

Corresponding author for each publication is underlined

  1. H. Gecol, P. Miakatsindila, E. Ergican, S. Hiibel “Chitosan Coated Clay Particles for the Adsorption of Tungsten from Water”, Desalination (accepted for publication, 2006).
     

  2. E. Ergican, H. Gecol, “Nonlinear Two-Phase Equilibrium Model for the Binding of Arsenic Anions to Cationic Micelles”, Journal of Membrane Science (accepted for publication, 2006).
     

  3. H. Gecol, E. Ergican, P. Miakatsindila, “Biosorbent for Tungsten Species Removal from Water: Effects of Co-occurring Inorganic Species”, Journal of Colloid and Interface Science, 292, pp 344-353 (2005).
     

  4. E. Ergican, H. Gecol, A. Fuchs, “The Effect of Co-Occurring Inorganic Solutes on the Removal of As (V) from Water Using Cationic Surfactant Micelles and Ultrafiltration Membrane”, Desalination 181, pp. 9-26 (2005).
     

  5. H. Gecol, E. Ergican, A. Fuchs, "Molecular Level Separation of Arsenic (V) from Water Using Cationic Surfactant Micelles and Ultrafiltration Membrane", J. Memb. Sci., 241:1, pp. 105-119 (2004).

  6. H. Gecol, J. F Scamehorn, S.D. Christian; B.P. Grady, F.E. Riddell, "Use of surfactants to remove water-based inks from plastic film: effect of     calcium ion concentration and length of surfactant hydrophobe", Colloid and Polymer Science, 283: 2, pp.154 - 163 (2004).
     

  7. A. Fuchs, M. Xin, F. Gordaninejad, X. Wang, G.H. Hitchcock, H. Gecol, C. Evrensel, G. Korol, "Development and characterization of hydrocarbon polyol polyurethane and silicone magnetorheological polymeric gels", J. of Applied Polymer Science, 92 pp.1176 - 1182 (2004).
     

  8. H. Gecol, J.F. Scamehorn, S.D. Christian, and F.E. Riddell, Use of Surfactants to Remove Solvent-Based Ink Printings from Plastic Films", Colloid and Polymer Science 281:1172 (2003).
     

  9. Komesvarakul N., J.F. Scamehorn, and H. Gecol, Purification of Phenolic-Laden Wastewater from the Pulp and Paper Industry Using Colloid Enhanced Ultrafiltration", Separation Science and Technology Vol 38, No 11, pp 2465-2501 (2003).
     

  10. H. Gecol, J.F. Scamehorn, S.D. Christian, B.P. Grady and F.E. Riddell, "Deinking of Water-Based Ink Printing from Plastic Film Using Nonionic Surfactants", Journal of Surfactants and Detergents, Vol. 5, No. 4, pp 363-374, October (2002).
     

  11. H. Gecol, J.F. Scamehorn, S.D. Christian, B.P. Grady and F.E. Riddell, "Use of Surfactants to Remove Water-Based Ink from Plastic Films", Colloids and Surfaces A Physicochem. Eng. Aspects, 189, 55-64 (2001).
     

  12. R.H. Davis and H. Gecol, “Classification of Concentrated Suspensions Using Inclined Settlers”, Int. J Multiphase Flow, 22:3, pp 563 -574 (1996).
     

  13. R.H. Davis and H. Gecol, “Hindered Settling Function with No Empirical Parameters for Polydisperse Suspensions”, AIChE Journal, 40:3, pp. 570 - 575 (1994)

II. Book Chapters

  1. H. Gecol, Chapter 2: The Basic Theory, Richard J. Farn (ed.), in Chemistry and Technology of Surfactants, Blackwell Science Ltd., Oxford, 2006, pp. 24-45

III. Proceedings

  1. E. Ergican, H. Gecol, "Semiequilibrium Dialysis versus Ultrafiltration for the Separation of Arsenic from Water Using Cationic Amphiphilic Aggregates", 02-Separation Divisions, Session 391-Membrane for Gas and Water Treatment Applications, 391e, Proceedings of 2004 AIChE Annual Meeting, CDROM, OmniPress (2004).
     

  2. E. Ergican, H. Gecol, "Removal of Arsenic from Water Using Amphiphilic Molecules and Ultrafiltration Membranes", 22- 4th Topical Conference on Nanoscale Science and Engineering Forum, Session 176-Application of Nanostructured Fluids, 176g, Proceedings of 2004 AIChE Annual Meeting, CD-ROM, OmniPress (2004).
     

  3. P. Miakatsindila, H. Gecol, E.Ergican, Synthesis and Characterization of Biopolymer Coated Particles for the Removal of Tungsten from Drinking Water, 02-Separation Divisions, Session 253-Trace Impurity Removal by Adsorption, 253e, Proceedings of 2004 AIChE Annual Meeting, CD-ROM, OmniPress (2004).
     

  4. J.F. Scamehorn, E.E. Tucker, H. Gecol, N. Komesvarakul, L.K. Serventi, K. H. Raney, and S.F. Capps, Industrial Home Laundry Closed Loop Cleaning Process, Proceedings of 6th World Surfactant Conference (2004).
     

  5. N. Komesvarakul, J.F. Scamehorn, and H. Gecol, “Removal of Phenolic Solutes from Wastewater from the Pulp and Paper Industry by Using Colloid-Enhanced Ultrafiltration”, Proceedings of First International Symposium on Process Intensification and Miniaturisation (2003).
     

  6. N. Komesvarakul N., J.F. Scamehorn, and H. Gecol, "Purification of Phenolic-Laden Wastewater from the Pulp and Paper Industry Using Colloid Enhanced Ultrafiltration", Proceedings of Annual AIChE Meeting, AIChE, New York, Volume 1, 391-399 (2001).
     

  7. Davis, R. H. and H. Gecol, “Classification of Concentrated Suspensions Using Inclined Settlers”, Reprints 1st Ann. Particle Tech. Forum, pp. 361-366 (1994).
     

  8. H. Gecol, R.H. Davis, and M. Mattoon, “Novel Bioreactor/Separator for Microbial Desulfurization of Coal”, Proceedings of the Twenty First Annual Biochemical Engineering Symposiums, K. F. Reardon (Ed.), p 158-166 (1991).
     

IV. Patent

  1. H. Gecol (co-inventer), "Nanostructured Magnetorheological Polymer Gels", United States Patent Application, 20050109976, May 26 2005.
     

V. Reports

  1. H. Gecol, E. Ergican, Trisha Wesner, J.D. Geddes, G.C. Miller,  “Competitive Priced Biodiesel Using Innovative process and Feed while Decreasing NOx Emissions”,  Sixth Quarterly Report, US EPA Region 9,  July 2006.
     

  2. H. Gecol, E. Ergican, Trisha Wesner, S. Hiibel, J.D. Geddes, G.C. Miller, , “Competitive Priced Biodiesel Using Innovative process and Feed while Decreasing NOx Emissions”,  Fifth Quarterly Report, US EPA Region 9,  April 2006.
     

  3. H. Gecol, E. Ergican, J.D. Geddes, G.C. Miller, S. Hiibel, “Competitive Priced Biodiesel Using Innovative process and Feed while Decreasing NOx Emissions”, Third & Fourth Quarterly Reports, US EPA Region 9,  December 2005.
     

  4. H. Gecol, J.D. Geddes, G.C. Miller, S. Hiibel, “Competitive Priced Biodiesel Using Innovative process and Feed while Decreasing NOx Emissions”, Second Quarterly Report, US EPA Region 9,  July 2005.
     

  5. H. Gecol, J.D. Geddes, G.C. Miller, S. Hiibel, “Competitive Priced Biodiesel Using Innovative process and Feed while Decreasing NOx Emissions”, First Quarterly Report, US EPA Region 9, April 2005.
     

  6. J. Garcia, A. Gardner, J. Nickerson, S. Struble, B. Suwe, J. Ward (CHE Senior Design Team), A. Fuchs, H. Gecol, W. Whiting (Faculty advisors), "Fuel Cells:  Synthesis and Characterization of a PBI Membrane", EPA Agreement Number:  SU831(58), April 12, 2005.
     

  7. B. Kavlicoglu, H. Gecol, A. Fuchs, S. Ozcan, M. Pinsky, and C. Evrensel, MRF “Materials Development and Characterizations and Mathematical Modeling”, NSF-EPSCoR Progress Report, September 2004.
     

  8. H. Gecol, “Removal of trace elements from water”, NSF-EPSCoR RING-TRUE I Progress Report, September 2002

Professional Papers Presented

I. Invited Presentations

  1. H. Gecol, E. Ergican, S. Hiibel, "Analytical Methods and Reaction Kinetic Parameters for the Production of Biodiesel Using Waste Cooking Oil and Ethanol", Renewable Energy, 2006 Northwest Regional meeting (61st NORM06), Reno, NV, June 27 2006.
     

  2. E. Ergican and H. Gecol, “Molecular Level Separation of Arsenic Anions from Water”,  Environmental Science, Water treatment, 2006 Northwest Regional meeting (61st NORM06), Reno, NV, June 26 2006.
     

  3. H. Gecol and P. Miakatsindila, “Chitosan Coated Clay Particles for the Adsorption of Tungsten (W) from Water", Water treatment, 2006 Northwest Regional meeting (61st NORM06), Reno, NV, June 26, 2006.
     

  4. J. D. Geddes. H. Gecol, and G.C. Miller, “UNR Continuous Biodiesel Production Pilot Plant”, Sierra Nevada Section of ACS, Reno, NV, April 11, 2005.
     

  5. H. Gecol, J.D. Geddes, and G.C. Miller, “Biodiesel Innovations at UNR”, Exhibit, Northern Nevada Sustainable Living Expo and Solar Tour, Reno, NV, November 6, 2004.
     

  6. H. Gecol, “Biodiesel Sustainability at the University of Nevada, Reno”, Air and Waste Management Association, Eastern Sierra Nevada Chapter, Reno, NV, March 21, 2003.
     

  7. N. Komesvarakul, J.F. Scamehorn and H. Gecol, “Solubilization of chlorinated phenolics into polymer/surfactant complexes and into micelles”, 14th SIS surfactant in solution Symposium, Barcelona, Spain, June 9-14, 2002.
     

  8. H. Gecol, Plastic Film Recycling, Seminar speaker for UNR Civil/Environmental Engineering Seminar Series, Nov 9, 2000

II. Conference Presentations

  1. H. Gecol, S. R. Hiibel, E. Ergican, J. D. Geddes, G. C. Miller, and A. Goodrich, "Transesterification Reaction Parameter Optimization for the Production of Ethyl Ester Using Waste Cooking Oil and Ethanol", Biodiesel processing -  Environmental Division, 2005 AIChE Annual Meeting, Cincinnati, OH, October 30 - November 4, 2005.
     

  2. H. Gecol and E. Ergican, “A Nonlinear Two-Phase Model to Relate Semiequilibrium Dialysis and Ultrafiltration Results for Arsenic Solutions", 01C12 Modeling of Interfacial Systems - Engineering Sciences and Fundamentals, 2005 AIChE Annual Meeting, Cincinnati, OH, October 30 - November 4, 2005.
     

  3. H. Gecol and E. Ergican, “Removal of Arsenic (V) from Water Using Coated Magnetic Particles”, Interfacial Phenomena in Environmental Systems- Engineering Sciences and Fundamentals, 2005 AIChE Annual Meeting, Cincinnati, OH, October 30 - November 4, 2005.
     

  4. E. Ergican and H. Gecol, “Semiequilibrium Dialysis versus Ultrafiltration for the Separation of Arsenic from Water Using Cationic Amphiphilic Aggregates”, 391e, 2004 AIChE Annual Meeting, Austin Convention Center, Austin, TX, November 7-12, 2004.
     

  5. H. Gecol and E. Ergican, “Removal of Arsenic from Water Using Amphiphilic Molecules and Ultrafiltration Membrane”, 176g, 2004 AIChE Annual Meeting, Austin Convention Center, Austin, TX, November 7-12, 2004.
     

  6. H. Gecol and  P. Miakatsindila, and E.Ergican, “Synthesis and Characterization of Biopolymer Coated Particles for the Removal of Tungsten from Drinking Water”, 253e, 2004 AIChE Annual Meeting, Austin Convention Center, Austin, TX, November 7-12, 2004.
     

  7. J.F. Scamehorn, E.E.Tucker, and H. Gecol, N. Komesvarakul, L.K. Serventi, K.H. Raney, and S.F. Capps,  “Industrial Home Laundry Closed Loop Cleaning Process”, 6th World Surfactant Conference, Berlin , July, 2004.
     

  8. L. Serventi, N. Komesvarakul, H. Gecol, K. Raney, S. Capps, E.E. Tucker, and J.F. Scamehorn, “Industrial Home Laundry Closed Loop Cleaning Process”, 95th Annual AOCS Meeting, Cincinnati, May, 2004.
     

  9. H. Gecol, E. Ergican, A. Fuchs, “Molecular Level Separation of Arsenic from Water Using Self Assembled Surfactant molecules and Ultrafilration Membranes”, Membranes in Environmental Applications I, 2003 AIChE Annual Conference, San Francisco, CA, November 16- 21, 2003.
     

  10. H. Gecol, A. Fuchs, Q. Zhang, J. Elkins, F. Gordaninejad, C. Evrensel, “Modification of MagneticParticle Surface Characteristics by Supramolecular Structure”, Surfactants in Particle Formation Processes from Liquid or Slurry, 2003 AIChE Annual Conference, San Francisco, CA, November 16- 21, 2003.
     

  11. A .Fuchs, B. Hu, F. Gordaninejad, H. Gecol, J. Elkins, C. Evrensel, C.,"Nanostructured Magnetorheological Polymer Gels", Manipulation of Nanophases by External Fields, 2003 AIChE Annual Conference, San Francisco, CA, November 16- 21, 2003.
     

  12. N. Komesvarakul, J.F. Scamehorn, and H. Gecol, “Removal of Phenolic Solutes from Wastewater from the Pulp and Paper Industry by Using Colloid-Enhanced Ultrafiltration”, First International Symposium on Process Intensification and Miniaturization, Newcastle, England, August, 2003.
     

  13. N. Komesvarakul, T. Nguyen, L. Do, J.F. Scamehorn and H. Gecol, “Simultaneous Removal of Dichlorophenol and Magnesium from Aqueous Solution by Surfactant Polymer Aggregates in Colloid-Enhanced Ultrafiltration”, SD3: Surfactants II, 94th AOCS Annual Meeting & Expo, Kansas City, MO, May 6, 2003.
     

  14. H. Gecol and E. Ergican, “Molecular Level Separation of arsenic from drinking water using UF membranes and surfactants”, 62i, 2002 AIChE Annual Meeting, Indianapolis, Nov 5, 2002.
     

  15. A. Fuchs, M. Xei, B. Hu, W. Xiaojie, H. Gecol, F. Gordaninejad, and C. Evrensel, “Development and Characterization of Magnetorheological Polymeric Gels”, 193a, 2002 AIChE Annual Meeting, Indianapolis, Nov 4, 2002.
     

  16. N. Komesvarakul, J.F. Scamehorn, and H. Gecol, “Removal of phenolic solutes from wastewater from pulp and paper industry by using colloid enhanced UF”, 20, processes involving colloids and polymers in aquatic Environment, Division of Colloid and Surface Chemistry, 224th ACS National Meeting, Boston, MA, August 18, 2002.
     

  17. N. Komesvarakul, J.F. Scamehorn, and H. Gecol, “The removal of Phenolic pollutants containing in Wastewater from Pulp and Paper Industries: effect of colloids and added salts”, S&D 4: General Surfactant Session II, 93rd AOCS Annual Meeting & Expo, Montreal, Quebec, Canada, May 7, 2002.
     

  18. H. Gecol, J.F. Scamehorn, Christian, S.D., Grady, B.P., and Riddell, F.E., "Removal of Water Based Inks from Recycled Plastic Films”, Sustainable Processes and Products Session, 260c, 2001AICHE Annual Meeting, Reno, November 06, 2001.
     

  19. N. Komesvarakul, H. Gecol, and J.F. Scamehorn, “Purification of the Phenolic-Laden Wastewater from Pulp and Paper Industry by Using Colloid-Enhanced Filtration, Novel Membrane processes for Recovery and Recycle session, 19f, 2001 AIChE Annual Meeting, Reno, November 08, 2001.
     

  20. N. Komesvarakul, H. Gecol, and J. F. Scamehorn, “Purification of Phenolic-Laden Wastewater from Pulp and Paper Industry by Colloid-Enhanced Filtration”, S&D 4: Industrial Applications of Surfactant, 92nd Annual AOCS Meeting, Minneapolis, May 15, 2001.

 

III. Conference Poster Presentations

  1. E. Ergican and H. Gecol, “Magnetic Separation of Arsenic (V) from Water using Coated Magnetic Particles” Advances in Environmental Technology – Environmental Division, 2005 AIChE Annual Meeting, Cincinnati, OH, October 30 - November 4, 2005.
     

  2. Ergican and H. Gecol, “Removal of Arsenic (V) from Water Using Cationic Amphiphilic Molecules and Ultrafiltration Membrane: Effects of amphiphile, initial arsenic (V) concentration, membrane type and membrane pore size, and existing co-ions”, 02d19, Membrane poster session – Separations Divisions, 2005 AIChE Annual Meeting, Cincinnati, OH, October 30 - November 4, 2005.
     

  3. Ergican, H. Gecol, J.D. Geddes, and G.C. Miller, “UNR Biodiesel Production- Yesterday’s Food Today’s Fuel” Unit Demo and Poster Presentation, Clean Air Day, Reno, NV, May 22, 2005.
     

  4. E. Ergican, H. Gecol, J.D. Geddes, and G.C. Miller, “UNR Biodiesel Production- Yesterday’s Food Today’s Fuel” Unit Demo and Poster Presentation, 2005 Reno Earth Day, Idle wild Park, Reno, NV, April 24, 2005.
     

  5. E. Ergican, H. Gecol, A. Fuchs, Self-Assembled Amphiphilic Aggregates for Arsenic Removal from Water, 169m, 2004 AIChE Annual Meeting, , Austin Convention Center, Austin, TX, November 7 – 12, 2004.
     

  6. P. Miakatsindila, H. Gecol, E.Ergican, Biopolymer Coated particles for the Removal of Tungsten from Drinking Water, 254f, 2004 AIChE Annual Meeting, Austin Convention Center, Austin, TX, November 7 – 12, 2004.
     

  7. S. Hiibel, H. Gecol, J.D. Geddes, and G.C. Miller, UNR Biodiesel Prototype Production Unit Demo and Poster Presentation, 2004 Reno Earth Day, Idle wild Park, Reno, NV, April 25, 2004.
     

  8. H. Gecol, E. Ergican, A. Fuchs, Removal of Arsenic (V) from Water by Ultrafiltration Membrane and Surfactant Aggregates, Poster Session: Interfacial Phenomena, 2003 AIChE Annual Conference, San Francisco, CA, November 16- 21,2003.
     

  9. Ergican, E and H. Gecol, “Removal of Arsenic from contaminated water by UF membranes in combination with micellar aggregates”, 159f, 2002 AIChE Annual Meeting, Indianapolis, Nov 3, 2002.
     

  10. A. Fuchs, B. Hu, A. Tibesar, U. Dogruer, S. Karakas, F. Gordaninijad, H. Gecol, and C. Evrensel, “Magnetorheological Polymer Gels based on high temperature polymers”, 188i, 2002 AIChE Annual Meeting, Indianapolis, Nov 3, 2002.
     

  11. M. Xin, A. Fuchs, H. Gecol, F. Gordaninejad, C. Evrensel, X. Wang, G. Hitchcock, “Development and Characterization of Novel Magnetorheological Polymer Gels”, 228j, Materials Engineering and Science Poster Session, AICHE Annual Meeting, Reno (November, 2001).

 

TOP

H Gecol Home Page