CAJ | 학술논문

以管式气氛炉作发生器，通过加热重金属氧化物，模拟冶炼厂重金属烟气。采用硫化铵沉淀化处理含铅、镉、汞的冶炼烟气，考察了硫化铵溶液的浓度、pH 及 SO2等条件对铝、镉、汞去除效果的影响。结果表明：硫化铵法吸收净化含铅、镉、汞烟气的最佳浓度分别为0.2、0.2和0.8 mol/L，最佳反应pH均为10。在最佳反应条件下，铅、镉、汞的净化效率可分别达到95.5%、93.2%、99.9%，烟气出口铅、镉、汞浓度均达到《大气污染物综合排放标准》(GB16297—1996)。此外，SO2对硫化铵吸收净化重金属有抑制作用。
이관식기분로작발생기，통과가열중금속양화물，모의야련엄중금속연기。채용류화안침정화처리함연、력、홍적야련연기，고찰료류화안용액적농도、pH 급 SO2등조건대려、력、홍거제효과적영향。결과표명：류화안법흡수정화함연、력、홍연기적최가농도분별위0.2、0.2화0.8 mol/L，최가반응pH균위10。재최가반응조건하，연、력、홍적정화효솔가분별체도95.5%、93.2%、99.9%，연기출구연、력、홍농도균체도《대기오염물종합배방표준》(GB16297—1996)。차외，SO2대류화안흡수정화중금속유억제작용。
Tubular resistance furnace was used as a reactor to simulate smelter flue gas of heavy metals by heating heavy metal oxides. And the flue gas containing Pb, Cd and Hg was treated with ammonium sulfide solution. The experiment was conducted to investigate the effects of (NH4)2S concentration, pH value of solution and the existence of SO2 on removal efficiency. The results show that the optimal concentration of Pb, Cd and Hg absorbed by ammonium sulfide solutions are 0.2, 0.2 and 0.8 mol/L, respectively. And the optimal pH value is 10. Under the optimum conditions, the removal efficiency of Pb, Cd and Hg reach 95.5%, 93.2%and 99.9%, respectively. The emission concentration of Pb, Cd and Hg reach the requirements of Air Pollutant Emission Standard (GB16297-1996). In addition, SO2 can reduce the removal efficiency of heavy metals of smelter flue gas.