“Investigation into the Removal of Sulfur from Tire Derived Fuel by Pyrolysis,” Kessinee Unapumnuk, Tim C. Keener, Mingming Lu and Fuyan Liang, Fuel, 87 951–956, 2008.

“Sex Differences Noted in Mercury Bioaccumulation in Magicicada Cassini,” P.F. Heckel, and T.C. Keener, Chemosphere, 69:1 7981, 2007

“Occurrence of Mercury in Periodical Cicadas (Magicicada: Cassini): Research Note,” Tim C. Keener, SoonJai Khang, JooYoup Lee, and Pamela F. Heckel, Journal of Entomological Science, 42(3), 435-436, 2007.

“Removal of Diesel Particulate Matter (DPM) in a Tubular Wet Electrostatic Precipitator,: Phirun Saiyasitpanich, Tim C. Keener, SoonJai Khang, Mingming Lu, Journal of Electrostatics, 65, 618–624, 2007.

“A Summary of the International Workshop on the Influences of Air Quality on the Mayan Heritage Sites in Mesoamerica,” Summary prepared and edited by P.F. Heckel, T.C. Keener, M. Lu, and H. Bravo Álvarez, EM, February, 24 - 30, 2007.

“Collection of Ultrafine Diesel Particulate Matter (DPM) in Cylindrical SingleStage Wet Electrostatic Precipitators,” Phirun Saiyasitpanich, Tim C. Keener, Mingming Lu, SoonJai Khang and Douglas E. Evans, Environmental Science & Technology, 40, 7890 - 7895, 2006.

“Carbon Distribution from Pyrolysis of Tire Derived Fuels,” K. Unapumnuk, M. Lu, and Tim C. Keener, Industrial & Engineering Chemistry Research, 45, pg. 87578764, 2006.

“Pyrolysis Behavior of Tire Derived Fuels at Different Temperatures and Heating Rates,” Kessinee Unapumnuk, Tim C. Keener, Soon Jai Khang and Mingming Lu, Journal of the Air & Waste Management Association, 56, pg. 618 - 627, 2006.

“The Fate of Chlorinated Volatile Organic Compounds in Aeration Basins Using Recirculated Aeration: A PilotPlant Evaluation,” Jason Sundrup, Kyung Sook Jung, Tim C Keener, SoonJai Khang, and Kaniz Siddiqui, Environmental Technology, vol. 27, pp. 603-611, 2006.

“Development of Costeffective Noncarbon Sorbents for Hg0 Removal from CoalFired Power Plants," JooYoup Lee, Yuhong Ju, Tim C. Keener, and Rajender Varma, Environmental Science & Technology, 40, 27142720, 2006.

“Determination of Polycyclic Aromatic Sulfur Heterocycles in Diesel Particulate Matter and Diesel Fuel by Gas Chromatography with Atomic Emission Detection,” Fuyan Liang, Mingming Lu, Eileen Birch, Tim C. Keener and Zifei Liu, Journal of Chromatography A, Volume 1114, Issue 1 , 5 May 2006, Pages 145-153.

“Biological Phosphate Uptake and Release: Effect of pH and Mg2+ ,” Qingzhong Wu, Paul L. Bishop and Tim C. Keener, Water Environment Research, Feb; 78 (2): 196-201, 2006.

“Evaluation of O3 NOxVOC Sensitivity of Cincinnati, Ohio,” Ricardo TorresJardón and Tim C. Keener, Journal of the Air & Waste Management Association, 56, pg. 322–333, 2006.

“The Potential Impact of Gasoline Additives on Air Quality in Developing Countries,” H. Bravo A. , P. Sanchez A., R. Sosa E., Mingming Lu, and Tim C. Keener, Clean Technologies and Environmental Policy, DOI: 10.1007/s1009800500165, Issue: Online First, November 19, 2005.

“The Organic Composition of Diesel Particulate Matter, Diesel Fuel and Engine Oil of a Nonroad Diesel Generator,” Fuyan Liang, Mingming Lu, Tim C. Keener, Zifei Liu and SoonJai Khang, Journal of Environmental Monitoring,7, pg. 983 - 988, 2005.

“Variations of the Particulate Phase Carbon Distribution from A Nonroad Diesel Generator,” Zifei Liu, Mingming Lu, M. Eileen Birch, Tim C. Keener, SoonJai Khang and Fuyan Liang, Environmental Science & Technology, 39, pg. 7840 - 7844, 2005.

“Formation and Biodegradation of Toluene in The Anaerobic Sludge Digestion Process,” Bozena Mrowiec, Jan Suschka and Tim C. Keener, Water Environment Research, May-Jun;77(3):274-8, 2005.

“A Strategy for Controlling Deposition of Struvite in Municipal Wastewater Treatment Plants.,” Qingzhong Wu, Paul L. Bishop and Tim C. Keener, Water Environment Research, 77 (2), 199-207, 2005.

“The Effects of Diesel Fuel Sulfur Content on Particulate Matter Emissions for a Nonroad Diesel Generator,” Phirun Saiyasitpanich, Mingming Lu, Tim C. Keener, Fuyan Liang, and Soon-Jai Khang, Journal of the Air & Waste Management Association, 55, pg. 993-998, 2005.

“A Technical and Economic Evaluation of CO₂ Separation from Power Plant Flue Gases with Reclaimed Mg(OH)₂,” Kyung-Sook Jung, Tim C. Keener, Soon-Jai Khang and Sang-Kwun Lee, Clean  Technologies  and  Environmental  Policy, v.6, No. 3, 201 - 212, July, 2004.

“Environmental Monitoring Using Wireless Sensors,” Dharma P. Agrawal, Mingming Lu, Tim C. Keener, Ming Dong, and Vijay Kumar, EM, August, 27-33, 2004.

“Mercury Removal from Flue Gas with In-Situ Aerosol Particles Generated by SO₃ NH₃

Reactions,” Joo-Youp Lee, Soon-Jai Khang and Tim C. Keener, Industrial & Engineering Chemistry Research, 43, 4363-4368, 2004.

“The ACCEND Program: a Combined BS and MS Program in Environmental Engineering That Includes Co-operative Work Experience,” Paul L.Bishop, T.C. Keener, A.R. Kukreti, and S.T. Kowel, Water Science & Technology, 49 (8): 73-79, 2004.

“CO₂ Absorption Study in a Bubble Column Reactor with Mg(OH)₂,” Kyung Sook Jung, Tim. C. Keener, Victoria Green and Soon-Jai Khang,  Int. J. Environmental Technology and Management, Vol. 4, Nos. 1/2, pg. 116-136, 2004.

“A Model for Dry Sodium Bicarbonate Duct Injection Flue Gas Desulfurization,” Changfa Wu, Soon-Jai Khang and Tim C. Keener, Advances in Environmental Research, 8, pg 655-666,2004.

"The Effects of Pulsed Corona Discharge on SO₂ Absorption into Water from SO₂/Air Mixture, Joo-Youp Lee, Soon-Jai Khang, and Tim C. Keener, Industrial & Engineering Chemistry Research, 42, 2030-2032, 2003.

"The Pyrolysis Behavior of Mixtures of Commodity Plastics with Polyvinyl Chloride in a Thermogravimetric Analyzer," Albrecht Heinzel, Tim C. Keener and Soon-Jai Khang, Archives of Environmental Protection, Vol. 27, No. 3, pp. 11-33, 2001.

"Long-Term Evaluation of an Industrial Scale Biofilter for Odor Control at a Large Metropolitan Wastewater Treatment Plant," Lian Zhuang, Tim C. Keener, and Kaniz F. Siddiqui, Environmental Progress, Vol. 20, No. 4, pg. 212-218, 2001.

"Sludge Digestion Enhancement and Nutrient Removal from Anaerobic Supernatant by Mg(OH)₂ Application", Wu, Q., Bishop, P.L., Keener, T.C., Stallard, J. and Stile, L., Water Science and Technology, Vol. 44, No.1, pp. 161-166, 2001.

"The Effects of Pulsed Corona Discharge on SO₂ Absorption into Water," Joo-Youp Lee, Soon-Jai Khang, Chao-Heng Tseng, and Tim C. Keener, Industrial & Engineering Chemistry Research, Vol 40, No. 24, pg. 5822-5830, 2001.

"Compositional Factors Affecting NO_x Emissions From Ohio Coals," Kyung Sook Jung, Tim C. Keener, and Soon-Jai Khang, Fuel Processing Technology, Vol. 74, No. 1, pg. 49-61, 2001.

"A Technical and Economic Comparison of Biofiltration and Wet Chemical Oxidation (Scrubbing) for Odor Control at Wastewater Treatment Plants," Li Gao, Tim C. Keener, Lian Zhuang, and Kaniz F. Siddiqui, Environmental Engineering and Policy, Vol 2, No. 4, pg. 203-212, 2001.

"The Enhanced Effect of In Situ Generated Ammonia-Sulfur Aerosols on the Removal of NO_x From Simulated Flue Gas," Chao-Heng Tseng, Tim C. Keener, Joo-Youp Lee, and Soon-Jai Khang, Environmental Science and Technology, Vol. 35, pg. 3219-3224, 2001.

"The Effect of Coal Volatility on Mercury Removal from Bituminous Coal During Mild Pyrolysis," Min Wang, Tim C. Keener, and Soon-Jai Khang, Fuel Processing Technology, Vol. 67, pp.147-161, 2000.

"CO₂ Reaction with Ca(OH)₂ During SO₂ Removal with Convective Pass Sorbent Injection and High Temperature Filtration," G. Li, Tim C. Keener, Antoinette W. Stein and Soon J. Khang, Environmental Engineering and Policy, Vol 2, No. 1, pp. 47-56, 2000.

"Nitrogen Oxides Removal by Pulsed Corona Enhanced Wet Electrostatic Precipitation with Ammonia and Ozone Injection: The Role of Ammonia-Sulfur Aerosols on NOx Removal," C.H. Tseng, T.C. Keener, S.J. Khang and J.Y. Lee, Developments in Chemical Engineering and Mineral Processing, Vol. 8, No. 5/6, pp. 483-503, 2000.

"Exposure and Health Risks Potentially Posed to Petroleum Storage Tank Cleaners by Volatile Organic Compounds," T.C. Keener, R.K. Jain, R.C. Michaels and J.W. Weber, Environmental Engineering and Policy, Vol. 1, No. 4, pp. 235-248, 1999.

"Sulfur Dioxide Removal by Pulsed Corona Enhanced Wet Electrostatic Precipitation," C.H. Tseng, T.C. Keener, S.J. Khang and J.Y. Lee, Advances in Environmental Research, 3 (3), 309-325, 1999.

"Continuous Sorbent Reactions in a High Temperature Fabric Filter Following Convective Pass Ca(OH)₂ Injection for SO₂ Removal," Guang G. Li, Tim C. Keener and Antoinette W. Stein, Journal of Air & Waste Management Association, 49,1292-1303, 1999.

"Aeration Recirculation in Air and High Purity Oxygen Systems for Control of VOC Emissions from Wastewater Aeration Basins," H. Zhu, T.C. Keener, P.L. Bishop, T.L. Orton, M. Wang, and K.F. Siddiqui, Environmental Progress, Vol. 18, No. 2, pp. 101-106, 1999.

"Temporal and Longitudinal Characteristics of Volatile Organic Compound Emissions from Aeration Units of Publicly Owned Treatment Works," H. Zhu, T.C. Keener, P.L. Bishop, T.L. Orton, M. Wang and K. Siddiqui, Journal of the Air & Waste Management Association, 49, 434 - 443, 1999.

"The Dissolution Rate of Ca(OH)₂ in Aqueous Solutions." J. Wang, T. C. Keener, G. Li and S. J. Khang, Chem. Eng. Comm., vol. 169, pp. 167-184, 1998.

"Investigation of the Fate of Mercury in Bituminous Coals During Mild Pyrolysis," A. Merdes, T.C. Keener, S.J. Khang, and R. G. Jenkins, Fuel, vol. 77, no. 15, pp. 1783-1792, 1998.

"The Emissions of Hazardous Air Pollutants from Aeration Tanks," H. Zhu, T.C. Keener, P.L. Bishop, T.L. Orton, M. Wang, and K.F. Siddiqui, Environmental Progress, vol 17, no. 3, pp. 148-153, 1998.

"A Calcination and Sulfation Reaction Model for Calcium Carbonate with Sulfur Dioxide," S.U. Keener, S.J. Khang, and T.C. Keener, Advances in Environmental Research, vol 2, no. 3, pp. 251-268, 1998.

"A Two-Stage Reactor for Studying Sorbent Reactivities in Flue Gas Desulfurization Systems Utilizing Fabric Filter Collectors," G. Li, T.C. Keener, and J. Wang, Environmental Technology, vol 19, pp. 475-482, 1998.

"Coal Desulfurization by Mild Pyrolysis in a Dual-Auger Coal Feeder," L. Lin, S.J. Khang and T.C. Keener, Fuel Processing Technology, 53, 15-30 (1998).

"Feasibility of Aeration Recirculation for Control of VOC Emissions from Publicly Owned Treatment Works," H. Zhu, H., T.C. Keener, T.L. Orton, P.L. Bishop, S.J. Khang, and K. Siddiqui,vol. 47, pg. 642-650, Journal of Air & Waste Management Association, 1997.

"Method for Measurement of VOCs in the Off-Gas and Wastewater of Wastewater Treatment Plants," M. Wang, T. C. Keener, T. L. Orton, H. Zhu, P. Bishop, S. Pekonen and Kaniz Siddiqui, For Presentation at the Air & Waste Management Association's 90th Annual Meeting, June 8-13, 1997, Toronto, Ontario, Canada

"Attrition and Changes in Size Distribution of Lime Sorbents in a Circulating Fluidized Bed Absorber," J.L. Cook, S.J. Khang, S,K, Lee and T.C. Keener, Powder Technology, vol 89, no. 1, pp 1-8, 1996.

"The Effect of Hygroscopic Additives on Ca(OH)2 Utilization in Spray Dryer Flue Gas Desulfurization," J. Wang and T.C. Keener, Environmental Technology, vol.17, pp 1047-1057, 1996.

"Catalytic Production of Elemental Sulfur from the Thermal Decomposition of H2S in the Presence of CO2," D. Soriano, T.C. Keener and S.J. Khang, Chem. Eng. Comm., vol. 143, pp. 73-89, 1996.

"The Use of a Circulating Fluidized Bed Absorber for the Control Of Sulfur Dioxide Emissions by Calcium Oxide Sorbent via In-Situ Hydration," M.X. Jiang, T.C. Keener and S.J. Khang, Powder Technology, vol 85, no. 2, pp 115-126, 1995

"Heated Fly Ash/Hydrated Lime Slurries for SO2 Removal in Spray Dryer Absorbers," J. Sanders, T.C. Keener and J. Wang, Industrial & Engineering Chemistry Research, vol. 34, no. 1, pp 302-307, 1995.

"SO2 Removal by NH3 Gas Injection: Effects of Temperature and Moisture Content," H. Bai, P. Biswas and T.C. Keener, Industrial & Engineering Chemistry Research, vol. 33, no. 5, pp 1231-1236, 1994.

"Attrition of Lime Sorbents During Fluidization in a Circulating Fluidized Bed Absorber," S. K. Lee, T. C. Keener and S. J. Khang, Industrial & Engineering Chemistry Research, vol. 32, no. 11, pg. 2758-2763, 1993.

"A Qualitative Analysis of the Effects of Water Vapor on Multi-Component Vapor Phase Carbon Adsorption," R. Gong and T. C. Keener, Journal of the Air and Waste Management Association, Vol. 43, pp. 864-872, June, 1993.

"Kinetics of the Sodium Bicarbonate-Sulfur Dioxide Reaction," T.C. Keener and S.J. Khang, Chemical Engineering Science, Vol. 48, No. 16, pp. 2859-2865, 1993.