有色金属冶炼烟气中单质汞脱除研究现状

由于汞具有剧毒性、易挥发性和长距离迁移性等特点，汞污染已经成为全球性的环境问题。目前，有色金属冶炼行业是我国大气汞排放的主要来源之一，占总排放量的30%左右。面对汞污染的压力，如何实现有色金属冶炼烟气中汞的高效脱除已经成为研究热点。针对有色冶炼烟气中汞排放的特征，阐述了烟气中汞形态转化和分布规律，综述了冶炼行业汞污染治理的研究现状，主要介绍冷凝法、吸附法、催化氧化法和液相吸收法等，对各种方法进行详细的描述，并对现有有色金属冶炼行业汞污染防治技术现状进行了总结和建议。 

Research status of elemental mercury removal from flue gas in non-ferrous metals production

Due to the toxicity,the volatility and the long-range transport of mercury,mercury pollution has become a global environment concern.At present,non-ferrous metallurgy is one of the main sources of atmospheric mercury emissions in China,accounting for about 30%of the total emissions.Facing the pressure posed by mercury pollution,people have considered investigation into the way to efficiently remove mercury from flue gas in non-ferrous metals production as hot researches.This paper expounds the transformation and the distribution rule of mercury in flue gas according to the characteristics of mercury emissions in the production of non-ferrous metals.Besides,the paper summarizes the research status of mercury pollution control in metallurgy.Removal methods such as condensation,adsorption,catalytic oxidation and liquid absorption were introduced in detail.In addition,the status of technologies for the prevention and the control of mercury pollution in non-ferrous metallurgy is summarized and the corresponding suggestions are proposed.