TY - JOUR ID - TI - Oxidation of gaseous elemental mercury in a high voltage discharge reactor AU - WANG Meiyan AU - ZHU Tianle AU - LUO Hongjing AU - TANG Ping and LI Huan VL - 21 IS - 12 PB - SP - 1652 EP - 1657 PY - JF - Journal of Environmental Sciences JA - J. Environ. Sci. UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=2009211205&flag=1 KW - plasma; Hg0; flue gas; oxidation AB - Effects of the voltage waveform, discharge tooth wheel number and CO2/NO/SO2 concentration in the simulated flue gas on Hg0 oxidation were investigated using a link tooth wheel-cylinder reactor energized by di erent high voltage power supplies. Negative DC discharge induced more ozone production and a higher Hg0 oxidation e ciency than positive DC discharge and 12 kHz AC discharge. The discharge tooth wheel number had almost no e ect on the maximum Hg0 oxidation e ciency. The allowable supplied voltage decreased with the increase of discharge tooth wheel number. CO2 could stabilize the discharge process and increase the maximum voltage for a stable discharge. It has also been found that NO consumed O3 induced by high voltage discharge, thereby decreased Hg0 oxidation e ciency; while SO2 had a slight promoting e ect on Hg0 oxidation. ER -