摘要
小颗粒物 ,及附着其上的有机污染物如多环芳烃 (PAHs)对环境、健康的影响越来越受到关注 ,而人为源排放小颗粒的比例正逐渐升高。文章通过对燃煤电厂除尘器前后排放烟气小颗粒的多次采样和分析 ,得到了除尘器前后PM10 ,PM2 5的小颗粒物粒度分布 ,进一步得到燃煤电厂排放颗粒物的分散度。并计算得出除尘器对于不同粒径的颗粒物的脱除效率 ,试验表明除尘器对于大颗的脱除效率高于小颗粒。样品进行预处理后用气相色谱仪分析样品中的 17种多环芳烃 (包括美国EPA推荐优先监测的 16种多环芳烃 )。
Aerosol and PAHs attached on it are emphasized because of their influence on the environment. And the aerosol emitted by industry is getting more proportion. We measured and analyzed the distributions of aerosol diameter in front of and behind the dust catcher. Then got the catching efficiency of the catcher. The experiments show that the dust catcher has low efficiency to small particles. 17 PAHs was measured by GC (including 16 PAHs emphasized by EPA).
出处
《能源工程》
2003年第2期29-32,共4页
Energy Engineering
基金
国家自然科学基金资助项目 ( 5 0 1760 45 )
