“十二五”期间中国燃煤电厂汞排放量估算

通过研究电力用煤消费量、煤中汞（Hg）含量、燃烧和烟气净化设施的Hg排放修正因子,并结合2011—2015年（“十二五”）期间污染物控制设备的投运率,估算出2010年和2015年中国燃煤电厂Hg输入输出总量。预测结果显示,到2015年中国燃煤电厂烟气中的Hg向大气的排放量将会减少,固体废弃物中Hg含量将会增加,脱硫废水中Hg含量与2010年持平,Hg输出总量将会提高,烟气、脱硫废水、固体废弃物中Hg的排放量依次为42.92 t、123.3 t、186.6 t。未来Hg污染控制重点将会是脱硫废水和固体废弃物中Hg的固化和无害化处理。

Estimation of Mercury Emissions from Coal-Fired Power Plants in China during the 12th Five-Year Period

By way of the studies on the coal consumption, the coal mercury contents and the mercury emission correction factors of the combustion and flue gas purification facilities, and also by taking account of the operating proportion of pollution control equipment during the 12th Five-Year Period, the input and output amounts of the total mercury in coal-fired power plants are calculated for the year 2010 and 2015. It is predicted that by 2015 the mercury emissions from the flue gas of coal-fired power plants to the atmosphere will be reduced, while the mercury contained in the solid wastes will increase, and the amount of mercury in the desulfurization waste water will be kept at the same level of year 2010. Therefore, the total mercury emissions will increase. Moreover, the mercury discharged from the flue gas, the desulfurization waste water and the solid wastes will be 42.92 tons, 123.3 tons and 186.6 tons respectively. The mercury control in the future will be focused on solidification and harmless disposal of mercury in the desulfurization waste water and solid wastes.