【作者】 张婧； 倪余文； 张海军； 张雪萍； 张青； 陈吉平；

【Author】 Zhang Jing, Ni Yuwen, Zhang Xueping, Zhang Haijun, Zhang Qing, Chen Ji-ping (Dalian Institute of Chemical Physics, CAS, Dalian 116023, China)

【机构】 中国科学院大连化学物理研究所；

【摘要】 <正>近年来,国外对于燃烧废弃物水泥窑的POPs排放研究日益增多[1,2],主要集中在烟气烟尘中POPs排放总量、排放因子和PCDD/Fs分布方面[1-3]。本项研究采集了湿法旋窑(1台)、新型干法旋窑(1台)和机械立窑(3台)的除尘器捕集灰。更多还原

【Abstract】 The concentrations and the patterns, toxic equivalent (TEQ) values of dioxin-like chemicals in fly ash collected from three types of cement kilns (vertical shaft kiln, wet-process rotary kiln and dry-process rotary kiln) were determined by isotope dilution and HRGC-HRMS, and the results were compared with that of fly ash from two types of waste incinerators. The results showed that the total concentration of PCDD/Fs, PCBs and PCNs in cement kiln fly ash, which were in the range of 0.449~7.347 ng·g-1,0.709~25.15 ng·g-1and 0.563~10.42 ng·g-1 respectively, were further lower than that of fly ash from waste incinerators.更多还原