| Mercury in coal,bottom ash,fly ash,smoke dust,limestone,gypsum and flue gas were sampled and analyzed from a coal fired power plant 330 MW unit in Nanjing.The distribution and emission characteristics of mercury were obtained based on the analysis data.The results showed that mercury in bottom ash has little effects on environment.Mercury in fly ash and smoke dust is apt to accumulate,and the accumulation increases with decreasing the particle diameter.As most of mercury discharge in company with gypsum after the burning of coal in coal fired boiler,some measures should be taken to prevent and control the mercury pollution on the environment. |
