燃煤电厂汞的排放控制要求与监测方法

The Control Requirements and Monitoring Methods for Mercury Emission in Coal-fired Power Plants

介绍了汞污染对环境、人体健康的影响与危害及燃煤电厂汞的产生和排放机理,对国内外燃煤电厂汞排放控制相关政策、排放标准进行了对比,重点介绍目前主要的烟气汞排放监测方法。其中较为成熟的烟气汞排放监测技术主要是美国国家环境保护局(USEPA)制定的安大略法(OHM法),30A法(在线监测)和30B法(吸附采样分析法)。结合我国部分已开展燃煤电厂烟气汞监测项目的经验提出建议:参考发达国家经验,开发适合于我国燃煤电厂的汞检测标准方法及相应仪器设备,在掌握我国燃煤电厂汞排放情况的基础上制订减排目标及排放标准。

The effect and harm of mercury to the environment and human health,as well as the mechanism of mercury generation and emission in coal-fired power plants,were introduced.The related policy and standards in China and in developed countries were compared,and the main monitoring methods for mercury in flue gas focused.The relatively mature monitoring methods included Ontario Hydro Method（OHM）,30A Method and 30B Method which were developed by US EPA.Combined with the monitoring experiences in China,it was suggested that the standard monitoring methods and equipments should be developed for mercury emission in coal-fired power plants by referring to the experience of developed countries,and the reduction targets and emission standards be formulated based on the emission monitoring data all over the country.