Water Plasma Generation Under Atmospheric Pressure for Waste Treatment
Abstract
DC lOO%-steam plasma characteristics were investigated for the application of halogenated hydrocarbon decomposition because steam plasmas are chemically reactive. However, plasma system generally requires complex subsystems such as steam generators and cooling units. The presented steam plasma system is a portable light-weight plasma generation system that does not require any gas supply unit. The system has high-energy efficiency because it does not need additional cooling water. Electrodes of high durability are required for a DC lOO%-steam plasma because the electrodes are exposed to reactive conditions. Thus, the electrode's characteristics were also investigated under different configurations and conditions. Keywords: CFC decomposition, halon decomposition, steam plasma, thermal plasma, and waste treatment.
References
2. Glocker, B., Nentwing, G., and Messerschmid, E. (2000). “1-40 kW stream respectively multi gas thermal plasma torch system," Vacuum, 59, 35.
3. Hrabovsky, M. (1998). "Water-stabilized plasma generators," Pure & Appl. Chem., 70, 1157.
4. Kim, S. W., Park, H. S., and Kim, H. J. (2003). "100 kW steam plasma process for treatment of PCB wastes," Vacuum, 70,50.
5. Murphy, A, B. (2003). "Destruction of ozone depleting substances by thermal plasmas: Technology, chemistry and modeling," Proceedings of 16th International Symposium on Plasma Chemistry, ISPC 492.
6. Takeuchi, S., Takeda, K, Uematsu, N., Komaki, H., Asakura, T., Mizuno, K., Wakabayashi, T., and Yoshida, T. (1995). *Thermodynamic considerations on the stability of RF plasma in the chlorofluorocarbon decomposition process using steam," Proceedings of 12th International Symposium on Plasma Chemistry, 2, 1021.
7. Watanabe, T., and Shimbar, S. (2003). "Halogenated hydrocarbon decomposition by steam thermal plasmas," High Temperature Materials Processes, 7, 455.
Copyright holder for articles is ASEAN Journal of Chemical Engineering. Articles published in ASEAN J. Chem. Eng. are distributed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.
Authors agree to transfer all copyright rights in and to the above work to the ASEAN Journal of Chemical Engineering Editorial Board so that the Editorial Board shall have the right to publish the work for non-profit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors’ personal use or for company use if the source and the journal copyright notice is indicated, and if the reproduction is not made for the purpose of sale.