摘要：Haze pollution involving PM 2.5 is currently a serious problem in China, and the implementation of toughermeasures to further reduce emissions from key air pollution sources such as coal-fired power plants hasbecome an inevitable trend. Wet electrostatic precipitator (WESP) technology is being adopted by anincreasing number of power plants because of its ability to remove PM 2.5 and other fine particulate matter. Inthis study, key indicators such as filterable particulate matter (FPM), condensable particulate matter (CPM),SO 3 , and droplets in the flue gas of Shanghai Changxing Island No.2 Power Plant were measured andanalysed. The results indicate that the emission concentrations of total particulate matter (TPM) were 30.31mg/m 3 and 15.74 mg/m 3 , FPM were 20.31 mg/m 3 and 6.09 mg/m 3 , PM 2.5 were 4.06 mg/m 3 and 2.50 mg/m 3 ,SO 3 were 4.51 mg/m 3 and 3.06 mg/m 3 , and droplets were 114 mg/m 3 and 102 mg/m 3 at the stack when theWESP was off and on, respectively. Similarly, CPM accounted for 33% and 61% of TPM, respectively. Thisstudy demonstrates that the use of WESP technology has a significant effect on the removal of particulatematter and droplets.
