Improvement of Energy Efficiency in the Dilute Trichloroethylene removal by Using Nonthermal Plasma Processing combined with Manganese Dioxide

Abstract

The chapter presents a study to improve the energy efficiency combined with catalysts at the downstream of barrier-discharge reactor. Catalyst of manganese dioxide (MnO2) is used for its high ability for the ozone decomposition. Variation of byproducts related with specific energy density (SED) is investigated in detail. Decomposition efficiency is improved to 99% at the specific energy of about 40J/L with passing through manganese dioxide. This result is ascribed to the application of catalytic surface reaction in the nonthermal plasma process. The nonthermal plasma technologies in the treatment of gaseous pollutants have been investigated by many researchers. Recently, these processes of nonthermal plasma technologies showed a tendency to combine with catalysts for the improvement of the energy efficiency. For the decomposition of gaseous trichloroethylene (TCE; C2HC13), S. Futamura et al. reported the detailed identification of volatile byproducts with ferroelectric pellet filled reactor. Chlorinated compounds should be fixed before releasing to the environment because of its toxicity on health. The catalytic effects (V2O5, WO3, and TiO2) for the decomposition of dilute TCE by using catalyst's filled barrier- discharge reactor are also reported.