燃煤电厂汞排放状况及监测中应注意的问题

Mercury Emissionstatus from Coal-fired Power Clants and Problems should be Paid Attention in Monitoring

《火电厂大气污染物排放标准》（GB13223—2011）增设了汞的排放限值，自2015年1月1日起，燃煤锅炉执行汞污染物排放限值0．03mg／m3。本文从燃煤电厂汞的排放去向、排放水平、存在形态及常规污染治理措施对汞的协同去除效果这四方面介绍了汞的排放状况，对国内外烟气（尘）汞监测方法的原理和特点进行了对比阐述，并针对影响监测结果的采样和空白扣除环节提出了重点注意事项。

Emission standard of air pollutants for thermal power plants（GB13223-2011） added mercury emission limits, since January 1, 2015, coal-fired boiler execution mercury emission limitis 0.03 mg/m3.In this paper, the emission status of mercury fromemission of mercury are introduced from four aspects including emission trace,emission levels, existing form and conventional pollution control measures of mercury removal efficiency.Flue gas mercury （dust） monitoring methods, the principle and characteristicsat home and abroad are compared.Aiming atthe monitoring results, key considerations are put forward.