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为控制和治理汞污染,估算了近年来中国北方某大型竖罐锌冶炼厂冶炼过程中的大气汞排放量。测定了该厂两套生产线的原材料(锌精矿)、焙烧产物(焙砂)及各种炼锌相关产物中(烟尘、烟气净化水、湿尘和硫酸)的汞质量含量、近年来冶炼过程大气汞排放量。运用质量平衡原理,计算出汞在冶炼过程中的质量分布。结果表明:两套生产线大气汞排放因子(生产单位质量的锌向大气排放的汞质量)分别为38g.t-1、30 g.t-1。锌冶炼是当地重要的人为汞排放源。
In order to control and control mercury pollution, atmospheric mercury emissions from the smelting of a large vertical zinc tank smelter in north China in recent years have been estimated. The mercury content of raw materials (zinc concentrate), roasted products (calcine) and various zinc-related products (soot, flue gas purification water, wet dust and sulfuric acid) of two production lines of the plant was measured. In recent years, Process Atmospheric mercury emissions. Using the principle of mass balance, the mass distribution of mercury in the smelting process is calculated. The results showed that the atmospheric mercury emission factors (mercury mass released from the unit of production zinc to the atmosphere) of the two production lines were 38g.t-1 and 30g.t-1, respectively. Zinc smelting is a significant source of man-made mercury emissions in the country.