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Use of Pulsed Corona Discharge Reactors (Pcdr): Results for Protein Degradation in Aqueous Phase

Maria F. Ibaņez, Tennessee Tech University, Chemical Engineering, Prescott Hall 214, Cookeville, TN 38505, Martha J. M. Wells, Center for the Management, Utilization and Protection of Water Resources, Tennessee Technological University, P.O. Box 5033, Cookeville, TN 38505, Dennis George, Center for the Management, Utilization and Protection of Water Resources, Tennessee Tech University, P.O. Box 5033, Cookeville, TN 38505, and Pedro E. Arce, Department of Chemical Engineering, Tennessee Tech University, Prescott Hall Room 214, Cookeville, TN 38505.

The success of the application of High Oxidation Methods in controlling pollutants in water effluents have been shown in an extensive series of efforts starting with the somewhat pioneering work by Sharma et. al. [5] and Joshi et al [8] in the elimination of phenol from aqueous solutions under a variety of conditions. Other work that follows up focused on the refinement and optimization of the technique [12, 13, etc]. This line of work, however, does not include the possible application of the technique to other compounds that are usually present in water effluents. One of these is proteins which are present at different levels in such effluents. The present contribution is an analysis of the potential useful benefit of using cold plasma techniques to the elimination of such compounds. This research will present experimental results under a variety of conditions such as variation of pH, voltage, conductivity, the addition of enhancers such us oxygen and iron using two different electrical discharges regimes (streamer and spark regimes). The reactor used in this investigation is a batch-type with two types of electrode configuration, i.e. the point to plate and the point to point. The results will be used to delineate the next step in the research effort regarding a more fundamental understanding of the role of the kinetics and other aspects.

Acknowledgements: The partial support and interest of Scientific Utilization, Inc., Huntsville, AL. and the Center for the Management Utilization and Protection of Water Resources, Tennessee Technological University, in this research effort is greatly appreciated.

References and Bibliography:

1- Won-Tae Shin et. al ,Ind. Eng. Chem. Res, 2000, 39, 4408-4414. 2- Glaze W H 1987, Environ. Sci. Technol. 21 224-230 3- Bolton J.R. et al, Water Conditioning and Purification Magazine, 1999, 41, 34-8 4- Radiation Technology for Conservation of the Environmet (Viena: IAEA), 1998 5- A.K. Sharma et. al, Hazardous Waste & Hazardous Materials, 1993, 10, 209-219 6- B. Sun et al., Environ. Sci. Technol., 200, 34, 509-513 7- M. Arif Malik, Plasma Sources Sci. Technol. , 2002, 11, 236-240 8- A.A. Joshi et al, Journal of Hazardous Materials, 1995, 41, 3-10 9- A. Tri Sugiarto et al, Thin Solid Films, 2002, 407, 174-178 10- P. Lubicki et al, Conference on Electrical Insulation and Dielectric Phenomena, 1996, 20-23 11- A. Abou-Ghazala et al, IEEE Transactions on Plasma Science, 2002, 30, 1449-1453 12- D. R. Grymonpre et al, Chemical Engineering Science, 1999, 54, 3095-3105 13- B.Sun et al, Journal of Electrostatics, 1997, 39, 189-202