John D. Paccione, Ph.D., P.E.

Academic Appointment Title:
Assistant Professor
Environmental Health Sciences

Position Title:
Public Health Engineer II
Center For Environmental Health
Bureau of Water Supply Protection

Contact Information:
Phone Number:  (518)-402-7650
Fax Number:       (518)-409-7599
Email Address:

Rensselaer Polytechnic Institute 1993

Research Interests:
The field of water treatment encompasses a wide variety of unit processes that can be analyzed using tools developed for the field of Chemical Engineering. The disinfection of water, for example, can be modeled using the same tools used for the design, analysis, and troubleshooting of chemical reactors. Using the principle of residence time distributions, contact tanks can be designed to produce effective microorganism disinfection while minimizing the production of disinfection byproducts.

Multiphase reactors can also be used for a variety of water treatment processes.  Multiphase systems (liquid-solid, gas-solid) can be used for the development of efficient fluid-particle contacting systems such as those used in catalytic reactions. Recent advances in photocatalysis provide a basis for the development of water purification systems that mineralize organic compounds and their halogenated derivatives. Novel fluid-particle contacting systems provide an efficient, flexible recycle loop for catalyst regeneration. This design satisfies the need for ready water-catalyst separation while providing large surface areas for the contaminant degradation reaction. Large-scale systems can be designed and constructed for the treatment of municipal sized flow rates of water. Development of these processes will provide a means of improving water quality, removing chemical contaminants with no significant waste stream, and allowing some communities to use ground and surface waters that have become contaminated by natural or other means.

Select Publications:
Design, Simulation, and Performance of a Draft Tube Spout Fluid Bed Coating System for
Aerogel Particles, Plawsky, J. L., Littman, H., Paccione, J. D., Powder Technology, 199 (2010)

A New Type of Draft Tube Spout-Fluid Bed: Part 1 Hydraulic Transport of 1.94 mm Glass
Particles in Water, H. Littman, J. D. Paccione, J. Plawsky, Industrial and Engineering
Chemistry Research, Vol. 48 (2009) 9286–9298.

Globally Optimal Design and Operation of a Continuous Photocatalytic Advanced
Oxidation Process Featuring Moving Bed Adsorption and Draft-Tube Transport, D.
Follansbee, J. D. Paccione, L. L. Martin, Industrial and Engineering Chemistry Research, 47
(2008) 3591-3600.

Effect of Large Particles on the Augmentation of Wall Friction in Vertical Pneumatic and
Hydraulic Transport in a Turbulent Fluid, H. Littman and J. D. Paccione,
Industrial and Engineering Chemistry Research, 46 (2007) 3429-3442.

Mortar Properties Obtained by Dry Premixing of Cementitious Materials and Sand in a
Spout-Fluid Bed Mixer, K.-B. Park, , J. L. Plawsky, H. Littman, , and J. D. Paccione,
Cement and Concrete Research, 36 (2006) 728-734.

A pseudo-Stokes Representation of the Effective Drag Coefficient for Large Particles
Entrained in a Turbulent Airstream, H. Littman, M. H. Morgan III, J. D. Paccione, Powder
Technology, 87 (1996) 169-173.

 Effect of Particle Diameter, Particle Density and Loading Ratio on the Effective Drag
Coefficient in Steady Turbulent Gas-Solids Transport, H. Littman, M.H. Morgan III, S. Dj.
Jovanović, J. D. Paccione, Z. B. Grbavčić and D.V. Vuković, Powder Technology, 84 (1995) 49-

Modeling and Measurement of the Effective Drag Coefficient in Decelerating and Nonaccelerating Turbulent Gas-Solids Dilute Phase Flow of Large Particles in a Vertical
Transport Pipe, H. Littman, M.H. Morgan III, J. D. Paccione, S. Dj. Jovanović, and Z. B.
Grbavčić, Powder Technology, 77 (1993) 267-283.

Laboratory Experiences in Membrane Separation Processes, H. C. Hollein, P. P.
Antonecchia, L. S. Mazzella and J. D. Paccione, Inter. J. Eng. Educ., 5, 369-378, 1989.

A Reverse Osmosis System for an Advanced Separation Process Laboratory, C. S. Slater,
J. D. Paccione, Chemical Engineering Education, , Summer 1987, pp. 138-143.