沥青烟对环境的潜在危害性评价.pdfVIP

学兔兔 杆 建蟓 中国科技核心期刊 沥青烟对环境的潜在危害性评价 才洪美，李朝霞，李静，汤琴珠 (泰州出入境检验检疫局，江苏 泰州 225300) 摘要：实验选用5种具有代表性的沥青，模拟拌和条件下沥青烟的释放量，进而评价沥青烟对环境的潜在危害性。研究表明，以 沥青四组分分布为依据，在实验室温度200℃，空速300 L儿，时间为12 h，搅拌速率为180 r／min的模拟拌和条件下，沥青烟的平均 释放量为1451．0300ms／ks 根据每年沥青的表观消费量计算得出，每年沥青烟的释放量为2万一3万t，约占烟气总排放量的O．2％， 虽然所占比例较小，但由于沥青烟中含有大量多环芳烃，对环境的潜在危害性不容忽视。 关键词：沥青烟；模拟拌和条件；释放量；潜在危害性 中图分类号：TU57 1 文献标识码：A 文章编号：1001—702X(2014)08—0047—04 The evaluation on the potential harm of asphalt fumes to the environment CAI Hongmei，LI Zhaoxia，LI Jing，TANG Qinzhu (Taizhou Entry—Exit Inspection and Quarantine Bureau，Taizhou 225300，Jiangsu，China) Abstract：In evaluation the potential harm of asphalt fumes to air，five representative asphalts were chosen to calculate the quantity of asphalt fumes under the mixing conditions．Studies showed that based on the four components distribution of asphalt， the simulation of mixing conditions were temperature at 200 qc，air speed at 300 L／h，time at 12 h and stirring speed at 180 r／min． Under the conditions above，asphalt fumes released Was 1451．0300 mg／kg in average．Calculated according to the annual apparent consumption of asphalt，20-30 thousand tons of asphalt fumes were released every year，which was about O．2％ of the total emis— sions．Despite the relatively small proportion of asphalt smoke in total emissions，potential harm of asphalt fumes to the environ— ment cannot be ignored because the asphalt smoke contains a lot of polycyclic aromatic hydrocarbons． Key words：asphalt smoke；simulation of mixing conditions：released amount：potential harm 越来越严重的雾霾现