Gerald E. Speitel Jr., Ph.D.,
P.E.
John J. McKetta Professor in Engineering and Chairman
The University of Texas at Austin
Civil Engineering Department
1 University Station C1700
Austin, TX 78712-0273
Phone 512-471-4996
Fax 512-471-0592
speitel@mail.utexas.edu
- Link to BiOFiLM: a computer simulation model of electron donor and acceptor removal in packed-bed bioreactors containing deep biofilms.
- Link to Steady: a steady-state wastewater treatment plant modeling program.
Current Research Projects
Treatment of Perchlorate-Contaminated Water using a Combined Biotic/Abiotic Process
Removal of Trihalomethanes in Drinking Water by Cometabolism in Nitrifying Biofilters
Disinfection By-Product Formation and Control during Chloramination
Surface Complexation and Dynamic Transport Modeling of Arsenic Removal on Adsorptive Media
The Significance of Trihalomethanes in Preventing Distribution System Nitrification in Chloraminated Waters
Awards and Honors
Best Paper Award, Water Science and Technology
Division, American Water Works Association (2002).
Best of Sessions Award,
Texas Section, American Society of Civil Engineers, for paper presented at
annual meeting (1999).
Thesis
Advisor Award, Association of Environmental Engineering Professors, for
advising recipient of first place award in the Montgomery Watson/AEEP Master's
Thesis competition (1996).
Major
Advisor Award, American Water Works Association, for advising recipient of
first place award in the Master's Thesis competition (1994).
Faculty
Excellence Award,
Rudolph Hering Medal, American Society of Civil Engineers (1988)
Journal Publications
Pope, P.G., Speitel, G.E., Jr., and Collins, M.R. “DXAA Formation Kinetics during Chloramination,” Journal American Water Works Association (in review).
Wahman, D.W., Katz, L.E., and Speitel, G.E. Jr. “Cometabolism of Trihalomethanes by Mixed Culture Nitrifiers,” Water Research (in review).
Wahman, D.W., Katz, L.E., and Speitel, G.E. Jr.
“Cometabolism of Trihalomethanes by a Mixed-Culture Nitrifying Biofilter,”
Journal American Water Works Association (in review).
Fairey,
J.L., Katz, L.E., and Speitel, G.E. Jr. “Monochloramine Destruction with
Granular Activated Carbon in Drinking Water Filters,” Journal American Water Works Association (in review).
Wahman,
D.W., Katz, L.E., and Speitel, G.E. Jr. “Cometabolism of Trihalomethanes
by Nitrosomonas europaea,” Applied and Environmental Microbiology
(in press).
Lampert, D.J., Frisch, M.A., and Speitel, G.E. Jr. “Removal of Perfluorooctanoic Acid and
Perfluorooctane Sulfonate from Wastewater by Ion Exchange,” Practice Periodical of Hazardous, Toxic, and
Radioactive Waste Management (in press).
Speitel, G.E. Jr., Katz, L.E., Wahman, D.W., and Fairey, J.L. Cometabolism of Trihalomethanes in Nitrifying Biofilters, Report, American Water Works Association Research Foundation, Denver, CO (in press).
Pressman, J.G., Georgiou, G.,
and Speitel, G.E. Jr., “Scale-Up
Considerations for a Hollow Fiber Membrane BioreactorTreating
Trichloroethylene-Contaminated Water,” Water Environment Research (in press).
Speitel, G.E. Jr., Pope, P.G., Collins, M.R., and
Martin-Doole, M. Disinfection By-Product Formation and Control During
Chloramination, Report No. 91040F, American Water Works Association
Research Foundation, Denver, CO, 2004.
Nishijima, W. and Speitel, G.E., Jr., “Fate of Biodegradable
Dissolved Organic Carbon Produced by Ozonation on Biological Activated Carbon,”
Chemosphere, 56: 113–119, 2004.
Roalson, S.R., Kweon, J.H., Lawler, D.F.,
and Speitel, G.E., Jr., “Enhanced
Softening: Effects of Lime Dose and Chemical Additions,” Journal American Water Works Association, 95 (11): 85-96,
2003.
Alvarez-Cohen, L. and Speitel,
G.E. Jr., "Kinetics of Aerobic Cometabolism of Chlorinated Solvents,"
Biodegradation, 12 (2): 105-126,
2001.
Liu, C.Y., Speitel, G.E.
Jr., and Georgiou, G.,
“Kinetics of MTBE Cometabolism at Low Concentrations by
Pure Cultures of Butane Degrading Bacteria,” Applied and Environmental Microbiology, 67 (5): 2197-2201, 2001.
Shull, T.L., Speitel, G.E.
Jr., and
Speitel, G.E. Jr., Symons,
J.M.,
Diehl, A.C., Speitel, G.E.
Jr., Symons, J.M., Krasner, S.W., Hwang, C.J., and Barrett, S.E.,
“Disinfection By-Product Formation During Chloramination”
Journal American Water Works Association,
92 (6): 76-90, 2000.
Pressman, J.G.,
Georgiou, G., and Speitel, G.E. Jr., "A Hollow Fiber Membrane Bioreactor
for the Removal of Trichloroethylene from the Vapor Phase," Biotechnology and Bioengineering, 68
(5): 548-556, 2000.
Aziz,
C.E., Georgiou, G. and Speitel, G.E. Jr. "Cometabolism of Chlorinated Solvents and Binary Chlorinated
Solvent Mixtures Using M. trichosporium
OB3b PP358," Biotechnology and
Bioengineering, 65: 100-107, 1999.
Speitel, G.E. Jr., Symons,
J.M., Davis, J.M., and Wanielista, M.M., Destruction
of TOC and Disinfection By-Product Precursors through Advanced Oxidation and
Biodegradation, American Water Works Association Research Foundation,
Denver, CO, 1999.
Pressman, J.G., Georgiou,
G., and Speitel, G.E. Jr., "Demonstration of Efficient Trichloroethylene
Biodegradation in a Hollow Fiber Membrane Bioreactor," Biotechnology and Bioengineering, 62
(6): 681-692, 1999.
Symons, J.M., Xia, R.,
Speitel, G.E. Jr., Diehl, A.C., Hwang, C.J., Krasner, S.W., and Barrett,
S.E. Factors
Affecting Disinfection By-Product Formation During Chloramination, Report
No. 90728, American Water Works Association Research Foundation, Denver, CO,
1998.
Erlanson, B.C., Dvorak,
B.I., Lawler, D.F., and Speitel, G.E. Jr., “Equilibrium Model for
Biodegradation and Adsorption of Mixtures in GAC Columns,” Journal of Environmental Engineering,
American Society of Civil Engineers, 123 (5): 469-478, 1997.
Cipparone,
de Blanc, P.C., McKinney,
D.C., Speitel, G.E. Jr., Sepehrnoori, K., and Delshad, M., “A
Three-Dimensional, Multi-Component Model of Non-Aqueous Phase Liquid Flow and
Biodegradation in Porous Media,” in Non-Aqueous
Phase Liquids (NAPLs) in the Subsurface Environment: Assessment and Remediation,
L.N. Reddi, ed., American Society of Civil Engineers, New York, 1996.
Fitch, M.W., Weissman, D., Phelps,
P., Georgiou, G., and Speitel, G.E. Jr., “Trichloroethylene Degradation
by Methylosinus trichosporium OB3b in
a Sequencing Biofilm Reactor,” Water
Research, 30 (11): 2655-2664,
1996.
Symons, J.M., Xia, R.,
Diehl, A.C., Speitel, G.E. Jr., Hwang, C.J., Krasner, S.W., and Barrett, S.E.,
“The Influence of Operational Variables on the Formation of Dissolved
Organic Halogen During Chloramination,” in Water Disinfection and Natural Organic Matter: Characterization and
Control, R.A. Minear and G.L. Amy (eds.), ACS Symposium Series 649,
American Chemical Society: Washington, DC: 78-104, 1996.
Dvorak, B.I., Lawler, D.F.,
and Speitel, G.E. Jr., “The Niche for Steam Stripping in Treating Dilute
SOC-Contaminated Waters,” Journal
of Environmental Engineering, American Society of Civil Engineers, 122 (9): 871-874, 1996.
Dvorak, B.I., Herbeck, C.J.,
Meurer, C.P., Lawler, D.F., and Speitel, G.E. Jr., "Selecting Among
Physical/Chemical Processes for Removing Synthetic Organics from Water," Journal of Environmental Engineering, American Society of Civil Engineers, 122 (7): 571-580, 1996.
Fitch, M.W., Speitel, G.E.
Jr., and Georgiou, G., “Degradation of Trichloroethylene by
Methanol-Grown Cultures of Methylosinus
trichosporium OB3b PP358,”
Applied and Environmental Microbiology, 26 (3): 1124-1128, 1996.
Symons, J.M., Krasner, S.W.,
Sclimenti, M.J., Simms, L.A., Sorensen, H.W. Jr., Speitel, G.E. Jr. and Diehl,
A.C. " Influence of Bromide Ion on Trihalomethane and Haloacetic Acid
Formation," in Disinfection By-Products in
Water Treatment, The Chemistry of Their Formation and Control, R.A. Minear
and G.L. Amy (eds.), Lewis Publishers/CRC Press, Inc., Boca Raton, FL: 91-130,
1996.
Aziz,
C.E., Fitch, M.W., Linquist, L.K., Georgiou, G. and Speitel, G.E. Jr. "Methanotrophic Biodegradation of
Trichloroethylene in a Hollow Fiber Membrane Bioreactor," Environmental Science and Technology, 29 (10): 2574-2582, 1995.
Segar, R.L. Jr. and Speitel,
G.E. Jr., “Cometabolism of Chloroethene Mixtures by Biofilms Grown on
Phenol,” Bioremediation of
Chlorinated Chemicals, R.E. Hinchee, A. Leeson, and L. Semprini (eds.),
Battelle Press, Columbus, OH, p. 245-253, 1995.
Segar, R.L. Jr., DeWys, S.L.
and Speitel, G.E. Jr., "Sustained Trichloroethylene Cometabolism by
Phenol-Degrading Bacteria in Sequencing Biofilm Reactors," Water Environment Research, 67 (5):
764-774, 1995.
Speitel, G.E. Jr. and Segar,
R.L. Jr., "Cometabolism
in Biofilm Reactors," Water Science
and Technology, 31 (1): 215-225, 1995.
Symons, J.M., Speitel, G.E.
Jr., Diehl, A.C. and Sorensen, H.W., "Precursor Control in Water
Containing Bromide,” Journal
American Water Works Association, 86
(6): 48-60, 1994.
Speitel, G.E. Jr., Segar,
R.L. Jr. and DeWys, S.L., "Trichloroethylene Cometabolism by
Phenol-Degrading Bacteria in Sequencing Biofilm Reactors," in Bioremediation of Chlorinated and Polycyclic
Aromatic Hydrocarbon Compounds, R.E. Hinchee, A. Leeson, L. Semprini, and
S.K. Ong (eds.), Lewis Publishers, Boca Raton, FL, p. 333-338, 1994.
Fitch,
M.W., Graham, D.W.,
Dvorak, B.I., Lawler, D.F.,
Speitel, G.E. Jr., Jones, D.L., and Boadway, D.A., "Selection Among
Treatment Technologies for Waters Contaminated with Synthetic Organic
Chemicals," Water Environment Research, 65
(7): 827-838, 1993.
Speitel, G.E. Jr. and McLay,
D.S., "Biofilm Reactors for the Treatment of Gas Streams Containing
Chlorinated Solvents," Journal of
Environmental Engineering, American Society of Civil Engineers, 119 (4): 658-678, 1993.
Speitel, G.E. Jr., Symons,
J.M., Diehl, A.C., Sorensen, H.W., and Cipparone,
Speitel, G.E. Jr., Thompson,
R.C. and Weissman, D.,
"Biodegradation Kinetics of Methylosinus trichosporium OB3b at Low Concentrations of Chloroform
in the Presence and Absence of Enzyme Competition by Methane," Water Research, 27 (1): 15-24, 1993.
Phelps, P., Agarwal, S.,
Speitel, G.E. Jr. and Georgiou, G., "Methylosinus
trichosporium OB3b Mutants Having Constitutive Expression of Soluble
Methane Monooxygenase in the Presence and Absence of High Levels of
Copper," Applied and Environmental
Microbiology, 58 (11): 3701-3708,
1992.
Speitel, G.E. Jr. and
Leonard, J.M., "A Sequencing Biofilm Reactor for the Treatment of
Chlorinated Solvents Using Methanotrophs," Water Environment Research, 64
(5): 712-719, 1992.
Speitel, G.E.
Jr. and Alley, E.R. Jr., "Bioremediation of Unsaturated Soils Contaminated
with Chlorinated Solvents," Journal
of Hazardous Materials, 28:
81-90, 1991.
Speitel, G.E. Jr. and
Closmann, F.B., "Chlorinated Solvent Biodegradation by Methanotrophs in
Unsaturated Soils," Journal of
Environmental Engineering, American Society of Civil Engineers, 117, (5): 541-558, 1991.
Lu, C.J. and Speitel, G.E.
Jr., "Effect of Natural Organic Matter on Biodegradation of a Recalcitrant
Synthetic Organic Chemical," Journal
American Water Works Association, 83
(2): 56-61, 1991.
Speitel, G. E. Jr. and Zhu,
X. J., "Sensitivity Analyses of Biodegradation/Adsorption Models," Journal of Environmental Engineering,
American Society of Civil Engineers, 116
(1): 32-48, 1990.
Speitel, G. E. Jr.,
Turakhia, M. H. and Lu, C. J., "Initiation of Micropollutant
Biodegradation in Virgin GAC Columns," Journal
American Water Works Association, 81
(4): 168-176, 1989.
Speitel, G. E. Jr., Lu, C.
J., Turakhia, M. H. and Zhu, X. J., "Biodegradation and Adsorption of a
Bisolute Mixture in GAC Columns," Journal
Water Pollution Control Federation, 61
(2): 221-229, 1989.
Speitel, G. E. Jr., Lu, C.
J. and Turakhia, M. H., "Biodegradation of Trace Concentrations of
Substituted Phenols in GAC Columns," Environmental
Science and Technology, 23
(1):68-74, 1989.
Speitel, G. E. Jr., Lu, C.
J. and Turakhia, M. H., "Biodegradation of Synthetic Organic Chemicals in
GAC Beds," Water Science and
Technology, 20 (11/12): 463-465,
1988.
Speitel, G. E. Jr. and
DiGiano, F. A., "Determination of Microbial Kinetic Coefficients through
Measurement of Initial Rates by Radiochemical Techniques," Water Research, 22 (7): 829-835, 1988.
Speitel, G. E. Jr. and
DiGiano, F. A., "Biofilm Shearing under Dynamic Conditions," Journal of Environmental Engineering,
American Society of Civil Engineers, 113
(3): 464-475, 1987.
Speitel, G. E., Jr.,
Dovantzis, K. and DiGiano, F. A., "Mathematical Modeling of
Bioregeneration in GAC Columns," Journal
of Environmental Engineering, American Society of Civil Engineers, 113 (1):
32-48, 1987.
Speitel, G. E. Jr. and
DiGiano, F. A., "The Bioregeneration of GAC Used to Treat
Micropollutants," Journal American
Water Works Association, 79
(1): 64-73, 1987.
Speitel, G. E. Jr. and
Hughes, M. M., "Considerations in Modeling Activated Sludge Process,"
Journal of the Environmental Engineering
Division, American Society of Civil Engineers, 108 (5): 990-1002, 1982.
Conference Proceedings
Wahman, D.G., Speitel, G.E., Jr.,
and Katz, L.E. “Trihalomethane
Cometabolism by Nitrifying Bacteria: Biofilter Performance,” Proceedings
of the Water Quality Technology Conference, American Water Works
Association, 2004.
Fairey, J.L., Katz, L.E., and Speitel, G.E.,
Jr. “Monochloramine
Destruction in GAC Beds,” Proceedings of the Water Quality Technology
Conference, American Water Works Association, 2004.
Pressman, J.G., Georgiou, G., Speitel, G.E. Jr., "Hollow Fiber Membrane Bioreactor for
Cometabolic Degradation of Chlorinated Solvents - Experimental Results and
Model Development," Proceedings, Specialized Conference on Water Environment-Membrane Technology,
International Water Association,
Sanchez, A.F.J., Katz, L.E., and Speitel,
G.E., Jr. “Perchlorate Remediation Using Combined Biotic/
Wahman, D.G., Henry, A.E., and Speitel, G.E.,
Jr. “Trihalomethane
Cometabolism by Nitrifying Bacteria: Kinetics and Biofilter Performance,”
Proceedings of the Water Quality Technology Conference, American Water
Works Association, 2003.
Gerwe, C.E., Lawler, D.F., Speitel, G.E. Jr.,
Katz, L.E., and Bennett, P.C. “Natural Organic Matter (NOM)
Adsorption onto and Coprecipitation with Solids Formed during Softening,” Annual Conference Proceedings, American Water Works Association, 2003.
Pope, P.G., Speitel, G.E., Jr., Martin-Doole,
M., and Collins, M.R.,
“DXAA Formation Kinetics during
Chloramination,” Annual Conference Proceedings, American
Water Works Association, 2003.
Wahman, D.G. and Speitel, G.E., Jr. “Cometabolism of
Trihalomethanes by Nitrifying Bacteria under Drinking Water Conditions,” Proceedings
of
Pope, P.G., Speitel, G.E., Jr., Martin-Doole,
M., and Collins, M.R.,
“Factors Contributing to DXAA Formation during
Chloramination,” Proceedings of the Water Quality Technology
Conference, American Water Works Association, 2002.
Putz,
A.R.H. and Speitel, G.E., Jr., “The Role of Cometabolism in the
Bioregeneration of Granular Activated Carbon Columns,” Proceedings of Water Environment Federation Annual Conference and
Exposition, 2002.
Pressman, J.G., Georgiou,
G., and Speitel, G.E. Jr., “Development of a Hollow Fiber Membrane Bioreactor
for Cometabolic Degradation of Chlorinated Solvents,” Proceedings of Water Environment Federation Annual Conference and
Exposition, 2002.
Martin-Doole,
M., Collins, M.R., Speitel, G.E., Jr., and Pope, P.G., “Evaluating Chloramination Factors and NOM Characteristics
in the Formation of DXAA,” Annual
Conference Proceedings, American Water Works Association, 2002.
Smith, K.N., Gerwe, C.,
Kweon, J.H., Speitel, G.E., Jr, and Lawler, D.F., “Guidelines for
Enhanced Softening: Raw Water Characteristics, NOM Removal, and DBP
Formation,” Annual Conference
Proceedings, American Water Works Association, 2002.
Morley, M.C. and Speitel,
G.E., Jr., “Methods for Enhancing the Desorption of High Explosives from
Activated Carbon,” Proceedings of
Water Environment Federation Annual Conference and Exposition, 2001.
Putz, A.H., Losh, D.E., and
Speitel, G.E., Jr., “Biological Activated Carbon: Understanding the Role
of Metabolism in Extending Service Life and Improving Process
Performance,” Annual Conference
Proceedings, Water Research, American Water Works Association, 2001.
Kweon, J.H., Gerwe, C.E., Lawler,
D.F., and Speitel, G.E., Jr.,
“Enhanced Softening: Effects of Raw Water Characteristics and Chemical
Additions,” Annual
Conference Proceedings, Water Research, American Water Works Association,
2000.
Liu, C.Y., Speitel, G.E.
Jr., and Georgiou, G., “Biodegradation of MTBE by Butane-Oxidizing Arthrobacter,
“Poster Abstracts, Second International Conference on Remediation of
Chlorinated and Recalicitrant Compounds,
Ralls, S.M., Kweon, J.H.,
Speitel, G.E., Jr., and Lawler, D.F., “Enhanced Softening for
Disinfection By-Product Precusor Removal,” Annual Conference Proceedings, Water Research, American Water Works
Association, 1999.
Morley, M.C., Shammas, S., and
Speitel, G.E., Jr., "Adsorption and Biodegradation of High Explosives on
Granular Activated Carbon," Environmental
Engineering 1999: Proceedings of the ASCE-CSCE National Conference on
Environmental Engineering, American Society of Civil Engineers,
de Blanc, P.C., D.C. McKinney and G.E.
Speitel, “UTCHEM: A Multiphase Flow and Biodegradation Model,”
Society of Petroleum Engineers paper number 52734, Presented at the SPE/EPA
Exploration and Production Environmental Conference, Austin, Texas, March 1-3,
1999.
Speitel, G.E. Jr., "Control of Disinfection By-Product
Formation Using Chloramines," In:
Formation and Control of Disinfection By-Products in Drinking Water, P.C.
Singer (ed.), American Water Works Association, Denver, CO, 1999.
Morley, M.C., Shammas, S.,
and Speitel, G.E., Jr., "Bioregeneration of Granular Activated Carbon
Contaminated High Explosives Compounds," In: Bioremediation of Nitroaromatic and Haloaromatic Compounds, B.C.
Alleman and A. Leeson (eds.), Battelle Press, Columbus, OH, 1999.
Pressman, J.G., Georgiou,
G., and Speitel, G.E. Jr., "Demonstration of Efficient Trichloroethylene
Biodegradation in a Hollow Fiber Membrane Bioreactor," Proceedings of Water Environment Federation 71st Annual
Conference, Vol. 1,
Speitel, G.E. Jr., Symons,
J.M., Davis, J.M., and Wanielista, M.M., "Destruction of TOC and
Disinfection By-Product Precursors through Advanced Oxidation and
Biodegradation," ,” Annual
Conference Proceedings, Water Research, Vol. C, American Water Works
Association, Dallas, TX: 405-422, 1998.
Morley, M.C., Henke, J.L.,
Shammas, S., and Speitel, G.E. Jr., "Adsorption and Biodegradation of High
Explosives on Granular Activated Carbon," 1998 Researchers' Conference Proceedings,
Gerwe, C.E., Shull, T.L.,
Shull,
T.L., Speitel, G.E. Jr., and
Pope, G., Sepehrnoori, K.,
Sharma, M.M., McKinney, D.C., Speitel, G.E. Jr., and Jackson, R.E., "Three
Dimensional NAPL Fate and Transport Model," Environmental Research Brief,
USEPA, Robert S. Kerr Environmental Research Laboratory, 1998.
Pressman, J.G., Fitch, M.W.,
Georgiou, G., and Speitel, G.E. Jr., "Degradation of Trichloroethylene by Methylosinus trichosporium OB3b PP358 in
a Hollow Fiber Membrane Bioreactor," Proceedings
5th Annual BPREC Meeting,
KAIST,
Symons, J.M., Speitel, G.E.
Jr., Hwang, C.J., Krasner, S.W., Barrett, S.E., Diehl, A.C., and Xia, R.,
“Factors Affecting Disinfection By-Product Formation During
Chloramination,” DBP Chemistry: A Seminar Designed for Water Quality
Engineers and Chemists, Proceedings,
Water Quality Technology, Boston, MA, 1997.
Aziz,
C.E., Georgiou, G., and Speitel, G.E. Jr.
"Cometabolic Degradation of Chlorinated Solvent Mixtures by M. trichosporium OB3b PP358," in In Situ and On-Site Bioremediation: Volume
3 Battelle Press,
de Blanc, P.C., C.L. Brown,
McKinney, D.C., Speitel, G.E. Jr., and Pope, G.A., “Surfactant Flushing
and Bioremediation - Striking a Balance,” In Situ and On-Site Bioremediation: Volume 2 Battelle Press, Columbus, OH: 565-574, 1997.
de Blanc, P.C., McKinney,
D.C., and Speitel, G.E. Jr., “Modeling Subsurface Biodegradation of
Non-Aqueous Phase Liquids,” in Advances
in Porous Media, Volume 3, M.Y. Coaragcioglu (ed.), Elsevier Science,
Amsterdam, The Netherlands: 1-82, 1996.
Pressman,
J.G., Aziz, C.E., Georgiou, G., and Speitel, G.E. Jr. "Treatment of Chlorinated Solvents in
Hollow Fiber Membrane Bioreactors," Proceedings of 2nd Annual
Symposium on Energy and the Environment,
Aziz,
C.E., Fitch, M.W., Pressman, J.G., Georgiou, G., and Speitel, G.E. Jr. "Hollow Fiber Membrane Bioreactor
Treatment of Chlorinated Solvent-Contaminated Groundwater," Proceedings of Water Environment Federation
Conference, Vol. 1, Wastewater Treatment Research Symposia,
deBlanc, P.C., Sepehrnoori,
K., Speitel, G.E. Jr, and McKinney, D.C. “Investigation of Numerical
Solution Techniques for Biodegradation Equations in a Groundwater Flow
Model,” Computational Methods in Water Resources XI, Volume 1: Computational
Methods in Subsurface Flow and Transport Problems, A.A. Aldama, J.
Aparicio, C.A. Brebbia, W.G. Gray, I. Herrera, and G.F.Pinder (eds.),
Computational Mechanics Publications, Southhampton, 1996.
Krasner, S.W., Symons, J.M.,
Speitel, G.E. Jr., Diehl, A.C., Hwang, C.J., Xia, R., and Barrett, S.E.,
“Effects of Water Quality Parameters on DBP Formation During
Chloramination,” Annual Conference
Proceedings - Water Quality (D), American Water Works Association, Toronto,
Canada: 601-628, 1996.
Symons, J.M., C.J., Xia,
Speitel, G.E. Jr., Diehl, A.C., Hwang, C.J., Barrett, S.E., and Krasner, S.W.,
“Disinfection By-Product Formation During Pilot-Scale Chloramination of
Three Different Surface Waters,” Annual
Conference Proceedings - Water Quality (D), American Water Works
Association, Toronto, Canada: 651-680, 1996.
Oppelt, M.K., Speitel, G.E.
Jr., and Loehr, R.C., “Sorptive Properties of Refinery Sludge Under Deep
Well Injection Conditions,” American Institute of Chemical Engineers
Spring National Meeting, Paper No. 61B, New Orleans, LA, 1996.
Dvorak, B.I., Erlanson,
B.E., Speitel, G.E. Jr., and Lawler, D.F., “An Equilibrium Model for
Combined Biodegradation and Adsorption in GAC Columns: Model Development,
Process Performance, and Economic Comparisons,” Proceedings of Water
Environment Federation Conference,
Diehl, A.C., Speitel, G.E.
Jr., Symons, J.M., Krasner, S.W., and Hwang, C.J., “Factors Affecting
Disinfection By-Product Formation During Chloramination,” Proceedings
of American Water Works Association
Annual Conference, Water Quality, Anaheim, CA: 535-546, 1995.
Sclimenti, M.J., Hwang,
C.J., Speitel, G.E. Jr., and Diehl, A.C., “The Simultaneous Determination
of Cyanogen Chloride and Cyanogen Bromide in Chloraminated Waters by a
Simplified Microextraction, GC/ECD Technique,” Proceedings of American
Water Works Association Water Quality Technology Conference,
Speitel, G.E. Jr. and Diehl,
A.C., "Biodegradation of Natural Organic Matter and Disinfection
By-Product Precursors," Proceedings of American Water Works Association
Annual Conference, Water Research,
Dvorak, B.I., Lawler, D.F.
and Speitel, G.E. Jr., "Process Selection for Treatment of SOC
Contaminated Waters," Proceedings of Environmental Engineering Specialty
Conference, American Society of Civil Engineers, Boulder, CO: 601-608, 1994.
Dvorak, B.I., Lawler, D.F.
and Speitel, G.E. Jr., "Treatment Process Selection for Waters Contaminated
by Synthetic Organic Chemicals," Preprints of Papers Presented at the
207th American Chemical Society National Meeting, Division of Environmental
Chemistry,
Speitel, G.E. Jr., Georgiou,
G., Linquist, L.K. and Fitch, M.W., "Biodegradation of TCE by Methylosinus trichosporium OB3b in
Hollow Fiber Membrane Reactors," Abstracts of American Chemical Society
Symposium, Emerging Technologies in Hazardous Waste Management V, Atlanta, GA:
526-529, 1993.
Cipparone,
Segar, R.L. Jr. and Speitel,
G.E. Jr., "Sequencing Biofilm Reactors for the Treatment of Groundwater
Contaminated with Chlorinated Solvents," Proceedings of American Water Works Association
Annual Conference, Water Research,
Symons, J.M., Speitel, G.E.
Jr., Diehl, A.C. and Sorensen, H.W., "Behavior of Bromine-Substituted THMs
and HAAs during Ozonation and Biodegradation," Proceedings of American Water
Works Association Annual Conference, Water Quality,
DiGiano, F.A. and Speitel,
G.E. Jr., "Biofilm Computer Models: Time for Practical Applications?"
Journal American Water Works Association,
85 (5): 26, 1993.
Segar, R.L. Jr., Speitel,
G.E. Jr., and DeWys, S.L., "Feeding Strategies That Sustain TCE
Cometabolism in Sequencing Biofilm Reactors," Proceedings of Water
Environment Federation Conference, Vol. 1-,
Speitel, G.E. Jr., Symons,
J.M., Cipparone,
Segar, R.L. Jr., DeWys, S.L.
and Speitel, G.E. Jr., "Sequential Biofilm Reactors for the Treatment of
Chlorinated Solvents," Proceedings of HMC-South '92 Conference,
Dvorak,
B.I., Lawler, D.F., Jones, D.L., Boadway, D.A. and Speitel, G.E. Jr.,
"Sytematic Approach for the Selection of the Least Cost Treatment
Technology for Aqueous Organic Hazardous and Industrial Wastes,"
Proceedings of 46th Annual Purdue Industrial Waste Conference,
Speitel, G.E. Jr. and Alley,
E.R. Jr., "Bioremediation of Unsaturated Soil Contaminated with
Chlorinated Solvents," Proceedings of 3rd Annual Symposium of the Gulf
Coast Hazardous Substance Research Center, Beaumont, TX, 1991.
Speitel,
G.E., Jr., Segar, R.L., Jr. and Leonard, J.M., "Bioreactor Technology for
the Treatment of Trace Levels of Chlorinated Solvents," Proceedings of
Petroleum Hydrocarbons and Organic Chemicals in Ground Water, National Water
Well Association,
Segar, R.L., Jr. and
Speitel, G.E., Jr., "Bioreactors for the Cometabolism of Chlorinated
Solvents by Microorganisms Growing on Aromatic Chemicals," Abstracts of
Water Pollution Control Federation Annual Conference,
Speitel,
G.E. Jr. and McLay, D.S., "Biofilm Reactors for Treatment of Gas Streams
Containing Chlorinated Solvents," Proceedings of Environmental Engineering
Specialty Conference, American Society of Civil Engineers,
Speitel, G.E. Jr., Thompson,
R.C., Segar, R.L. Jr. and Leonard, J.M., "Effect of Growth Substrate and
Microbial Population on the Biotransformation of Chlorinated Aliphatic
Chemicals," proceedings of American Water Works Association Annual
Conference, Cincinnati, OH, 1990.
Closmann, F.B. and Speitel,
G.E. Jr., "Aerobic Biodegradation of Chlorinated Solvents in Unsaturated
Soils," Proceedings of Haztech International 90,
Speitel, G.E. Jr.,
Patterson, A.M., Lu, C.J. and Thompson, R.C., "Aerobic Biodegradation of
Chloroform and Trichloroethylene in Drinking Water Treatment," Proceedings
of American Water Works Association Annual Conference,
Closmann, F.B. and Speitel,
G.E. Jr., "Aerobic Biodegradation of Chlorinated Solvents in Unsaturated
Soils," Proceedings of Environmental Engineering Specialty Conference,
American Society of Civil Engineers, Austin, TX:
734-741, 1989.
Lu, C.J. and Speitel, G.E.
Jr., "The Effect of Structurally Similar Chemicals on the Biodegradation
of Recalcitrant Compounds," Abstracts of Water Pollution Control
Federation Annual Conference,
Speitel, G. E. Jr.,
"Mass Transport and Microbial Kinetics Considerations for Biodegradation
in GAC Columns," Extended Abstracts of Summer National Meeting of American
Institute of Chemical Engineers, Denver, CO, 1988.
Lu, C.J. and Speitel, G.E.
Jr., "Enhanced Biodegradation of Recalcitrant Compounds by Analogous
Enrichment," Proceedings of American Water Works Association Annual
Conference,
Speitel, G. E. Jr., Lu, C.
J. and Turakhia, M. H., "Biodegradation of Synthetic Organic Chemicals in
GAC Beds," Proceedings of International Conference for Water and
Wastewater Microbiology, Newport Beach, CA, Volume 2, Paper 88, 1988.
Speitel,
G. E. Jr., Lu, C. J., Turakhia, M. H. and Zhu, X. J., "Biodegradation and
Adsorption of Multi-Component Mixtures in GAC Beds," Abstracts of Water
Pollution Control Federation Annual Conference,
Speitel, G. E. Jr., and Zhu,
X. J., "Mathematical Modeling of Adsorption and Biodegradation in GAC
Beds," Proceedings of ASCE Environmental Engineering Specialty Conference,
Speitel, G. E. Jr.,
Turakhia, M. H. and Lu, C. J., "Biodegradation and Adsorption of Synthetic
Organic Chemicals in GAC Columns," Proceedings of American Water Works
Association Annual Conference,
Speitel, G. E. Jr. and
DiGiano, F. A., "Bioregeneration at Micropollutant Concentrations in GAC
Columns," Proceedings of American Water Works Association Annual
Conference,
DiGiano, F. A. and Speitel,
G. E. Jr., Discussion of: "Organic
Removal Mechanisms in Biophysical Treatment Systems," Schultz, J. R. and
Keinath, T. M., Proceedings of 12th Biennial International Conference of
International Association on Water Pollution Research and Control,
DiGiano, F. A., Dovantzis,
K. and Speitel, G. E. Jr., "Influence of Adsorption on Biofilm
Development," Proceedings of Environmental Engineering Specialty
Conference, American Society of Civil Engineers,
Speitel, G. E. Jr. and
DiGiano, F. A., "Interpretation of Microbial Kinetics in Adsorptive
Systems at Low Substrate Concentrations," Proceedings of American Water
Works Association Annual Conference,
Speitel, G. E. Jr.,
Discussion of: "Powdered Versus
Granular Activated Carbon for Oil Refinery Treatment," C. G. Grieves et al., Journal Water Pollution Control Federation, 54 (3): 318-319, 1982.
Lamb, J. C.,
III, Singer, P. C., Rader, R., Reckhow, D. and Speitel, G.,
"Characterization and Biological Treatability of Coal Conversion
Wastewaters," Proceedings 34th Purdue Industrial Waste Conference, West
Layfayette, IN, Ann Arbor Science, 1979.
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