Removal of Water Pollutants by Pulsed Discharge Plasma and Observation of Its Optical Emission Intensity at Atmospheric Pressure
作者： Yui Hayashi , Wahyudiono , Siti Machmudah , Hideki Kanda , Noriharu Takada
关键词: Analytical chemistry 、 Plasma 、 Argon 、 Conductivity 、 Methyl orange 、 Degradation (geology) 、 Atmospheric pressure 、 Nitrogen 、 Chemistry 、 Electrode
摘要: Pulsed discharge plasma over the liquid surface was observed in needle electrode configuration. The characteristics of streamer propagation including its optical emission intensity were investigated by using intensified charge coupled device (ICCD) camera. experiment conducted at 313 K, 0.1 MPa argon a batch-type reactor with methyl orange as starting material. characteristic pulsed streamers started from placed above and then reached surface, where they propagated on it. their progression distance increased increase peak voltage value. immediately after breakdown; it to value when applied After treatment, degraded into derived compounds appearance light color. UV–vis spectrophotometer analyzed that intermediate degradation consist primarily aromatic which contain nitrogen functional groups. is 99% number 20000×. With increasing pulse numbers, pH conductivity solution changed clearly.
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