Within the last 10 years, various kinds ofcorona-induced non-thermal plasmas have been investigated in order to remove gaseous pollutants, such as SO_(2) and NO, from air and exhaust gases. Normally, the gas treatment is carried out at or above room temperature by the conventional dry-type corona reactor. However, this treatment is still inadequate for the removal of certain stable gases present in the flue gas mixture. In this work, a wet-type corona reactor (needle-water electrode) is presented that can simultaneously remove NO and SO_(2) from flue gas at low temperatures and at atmospheric pressure. The effect of water vapor and oxygen concentration on the plasma remediation of SO_(2) and NO using wet-type plasma reactor were studied. The experimental results show both removal rate of NO and SO_(2) are improved in wet-type reactor than that of dry-type reactor. The SO_(2) and NO conversion increased with increasing water vapor and oxygen content in the flue gas.
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