Title :
Aerosol plasma for aqueous waste treatment
Author :
Bystritskii, V.M. ; Yankelevich, Y. ; Wood, Tim ; Wessel, F. ; Yee, Dennis
Author_Institution :
California Univ., Irvine, CA, USA
Abstract :
Summary form only given. We describe 2-stage technology for degradation of aqueous wastes (containing organic pollutants), based on Aerosol Plasma Treatment combined with bio-treatment stage. Short pulsed corona/streamer discharge in aerosol with controlled applied voltage amplitude of 50-90 kV, pulse duration of 100-150 ns, and reprate of 10/sup 2-3/ Hz is organized inside a 40 liter reactor. The aerosol with drops diameter of 10-100 /spl mu/m is provided with a commercial atomizer. 2-3 fold pulsed E-field enhancement near the drops surface combined with large specific water/air surface (10/sup 2-3/ cm/sup 2//g) result in copious generation of energetic and hydrated electrons, active free radicals (O, H, OH), providing efficient degradation and partial dechlorination of the primary organic molecules of the pollutants.
Keywords :
aerosols; corona; discharges (electric); free radicals; organic compounds; plasma applications; solvated electrons; water pollution control; 0.1 to 1.5 keV; 10 to 100 mum; 100 to 1000 Hz; 100 to 150 ns; 2-stage technology; 50 to 90 kV; active free radicals; aerosol plasma; aqueous waste treatment; biotreatment stage; commercial atomizer; degradation; hydrated electrons; organic pollutants; partial dechlorination; pollutants; pulsed E-field enhancement; short pulsed corona discharge; short pulsed streamer discharge; water/air surface; Aerosols; Atomic measurements; Corona; Inductors; Plasmas; Pulse generation; Surface contamination; Thermal degradation; Voltage control; Water pollution;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605142
