Gas/Particle Phase Partitions and Size Distributions of PCDD/Fs in Atmosphere

• Main Authors: Fan-Leng Kuo, 郭凡稜
• Other Authors: Wen-Jhy Lee
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/79763682343128945923

碩士 === 國立成功大學 === 環境工程學系碩博士班 === 95 === 　In order to investigate K and R municipal solid waste incinerators (MSWIs) PCDD/Fs of flue gas effect on the surrounding environment. This research focus on K and R MSWIs`s ambient air, Gas/Particle Partitions and Size Distributions of PCDD/Fs. The results are as follows: 　K MSWI average concentration in ambient air of PCDD/Fs is 0.0749 pg I-TEQ/Nm3; and R MSWI is 0.0727 pg I-TEQ/Nm3. 　K MSWI Gas/Particle Partitions of PCDD/Fs average concentration is 0.0358 and 0.0283 pg I-TEQ/Nm3; R MSWI is 0.0315 and 0.0195 pg I-TEQ/Nm3. K MSWI Gas/Particle Partitions simulation model of PCDD/Fs average concentration is 0.0405 and 0.034 pg I-TEQ/Nm3; R MSWI is 0.042 and 0.0305 pg I-TEQ/Nm3. To compare surveying and simulation value, that can get the sampling and analysis of Artifact. 　In MSWI, the size distributions of total particle mass is showed of two peaks, the total particle mass range 3.2~36.5 and 0.52~1.8 μm; the total PCDD/Fs and total I-TQE PCDD/Fs are showed of one peak, the total PCDD/Fs and total I-TQE PCDD/Fs range 0.31~1.0 μm. 　In MSWI, the cumulative percentage of the total particle mass, total PCDD/Fs and total I-TQE PCDD/Fs, the average MMD are 5.77, 0.77 and 0.78 μm. In MSWI, the average MMDo andδg,o of the total particle mass, total PCDD/Fs and total I-TQE PCDD/Fs, the value are (5.77, 0.77 and 0.71) and (5.17, 2.68 and 2.32) μm；the average MMDf and δg,f are (0.98, 0.62 and 0.59) and (1.91, 2.04 and 1.98) μm；the average MMDc and δg,c are (12.78, 7.44 and 8.74) and (2.72, 2.75 and 2.63) μm. 　In all of sampling site, the total PCDD/Fs of MMDo value are less than total particle mass of MMDo value. According to the total particle mass and the total PCDD/Fs of theδg,o, it indicates that the distribution range of small particles is larger than the coarse particles. And the range of particle distribution is quite large in atmosphere. Small particle has higher PCDD/Fs concentration than that of larger particle. It could be due to the small particle has larger surface and adsorb more PCDD/Fs on it.