火电厂汞污染控制对策探讨

介绍燃煤汞污染现状和汞排放形态、特征及其大气排放标准。分析了我国燃煤电厂汞污染控制面临的问题。结合我国汞大气排放的新标准,从管理和技术方面提出了相应的对策。同时介绍了国内外燃煤电厂汞排放的控制措施：① 采用清洁燃煤发电技术,推进机组节能减排;② 充分利用现有非汞污控设施实现协同控制;③ 开展单项脱汞技术研究与示范,其涉及煤基添加剂、炉膛喷射、吸附剂喷射、吸收塔稳定剂、脱硫废水络合剂等技术;④ 几种国外新型汞联合脱除技术。

Discussion on Mercury Pollution Control Strategy for Thermal Power Plants

The status quo of mercury pollution is introduced as well as the mercury emission forms the characteristics and the corresponding atmospheric emission standards of coal-fired power plants. The mercury pollution control issues facing the coal-fired power plants in the country are analyzed. According to the new standard on atmospheric mercury emission of coal-fired power plants, some countermeasures in respect to management and techniques are put forward. At the same time, some foreign measures are introduced, including:1) Using clean coal power generation technologies to promote energy conservation and emission reduction; 2) Making full use of existing non-mercury pollution control facilities to realize collaborative control; 3) Carrying out the research and demonstration of individual mercury removal technology, involving coal base additives, furnace injection, sorbent injection, absorption tower stabilizers, and desulfurization wastewater complexing agent, etc; 4) New mercury joint removal technologies.