Assistant Sanitary Engineer, Center for Environmental Health, Community Environmental Health and Food Protection
Assistant Professor, School of Public Health, Environmental Health Sciences
Ph.D., Rensselaer Polytechnic Institute (1993)
Multiphase flow lends itself to the analysis of problems in a variety of important biological, environmental, and chemical systems. Multiphase systems (liquid-solid, gas-solid) can be exploited for the development of efficient fluid-particle contacting systems such as those used in catalytic reactors. Recent advances in photocatalysis provide a basis for the development of water purification systems that mineralize organic compounds and their halogenated derivatives. Using novel fluid-particle contacting systems provides a stable reactor section and an efficient, flexible recycle loop for catalyst regeneration. This design satisfies the need for efficient water-catalyst separation while providing large surface area for the contaminant degradation reaction. It is a simple matter to implement newly developed catalysts and materials into these reactors because they have highly flexible operating regimes. Large-scale systems can be designed and constructed for the treatment of municipal or recreational sized volumes of water. Development of these processes will provide a means of improving water quality, removing chemical contaminants with no significant wastestream, and allowing some communities to use ground and surface waters that have become contaminated by natural or other means.
Other applications for these fluid-particle contactors include separation of biomolecules onto expanded-bed beads. Using properly designed processes, a mixture of proteins can be separated into the component molecules in a continuous process using the proper introduction of pH of buffers. This technology can be extended to capture and identification of microorganisms for water quality monitoring as well.
The effect of duct velocity on the slip velocity of particles undergoing vertical pneumatic transport, J.D. Paccione, H. Littman, Presented at the Annual AIChE Meeting, November 2004
Fundamental Concepts and Bounds on Wall Friction in Pneumatic Transport, H. Littman, J. D. Paccione, Presented at the Annual AIChE Meeting, November 2004
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. Jovanovic, J.D. Paccione, Z.B. Grbavcic and D.V. Vukovic, Powder Technology, 84 (1995) 49-56
Modeling and measurement of the effective drag coefficient in decelerating and non-accelerating 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. Jovanovic, and Z.B. Grbavcic, Powder Technology, 77 (1993) 267-283
A reverse osmosis system for an advanced separation process laboratory, Chemical Engineering Education, C.S. Slater, J.D. Paccione, Summer 1987, pp. 138-143
Design of a Pilot-Scale Reverse Osmosis System for an Advanced Separations Laboratory, C.S. Slater, J.D. Paccione, 1986 Annual Conference Proceedings of ASEE
Phone: (518) 402-7600
Fax: (518) 402-7609
E-mail: jdp07@health.state.ny.us.
Additional information on faculty research interests and publications can be found at: http://www.wadsworth.org/resnres/bios/pifacframe.htm
