常見農業廢棄物燃燒的顆粒在不同粒徑下之化學特性分析

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常見農業廢棄物燃燒的顆粒在不同粒徑下之化學特性分析

Chemical Characteristics of Particulate Matters in Different Size Distribution from Common Agricultural Residue Combustions

湯士典 , Masters　　Advisor：白光宇　　

英文

生質燃燒；粒徑分布；水含量；稻米稈； biomass burning ； size-segregation ； water content ； rice straw

Abstract │ Reference (99) │ Altmetrics

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The air quality in south-east Asia have been influenced by the emissions of agricultural residue burning. Not only air quality but also human health are also at risk of the chemical and physical properties of aerosols. Rice straw is the main crop in south-east Asia. Therefore, this study was designed to get more comprehensive understanding of size-segregated chemical characterization of aerosols emitted from rice straw burning (0.43-10μm). In addition, the three water contents of unburned rice straw were the operating factor with Tem. and Humi. Chamber in this study (<10%, 40%, and 90%). Eleven rice straw combustions and the sixteen large chamber experiments from forth Fire Laboratory at Missoula Experiments were conducted. The burning condition of all experiments were classified to flaming phase with modified combustion efficiency values. The emission factors of water-soluble ions, anhydrosugars, water-soluble organic carbon, and trace heavy metals were calculated. 
The levoglucosan, mannosan, galactosan were measured and levoglucosan occupied the most amount of these three anhydrosugars. The dominant species from rice straw burning were Cl-, K+, NO3-, and SO42-. The correlations of some specific ions (Cl-/K+, K+/NO3-, and NH4+/SO42-) were very good especially Cl- and K+ (above 0.937). The water contents of rice straw conditioned under three relatively humidity had no significantly influence on the size distributions of WSOC, anhydrosugars, and trace heavy metals. However, the size distribution of some anions and cations were affected by the different water contents. The heavy metals, Pb and Cd, were different from the origin of rice straw (Taiwan and China) and distributed in the fine mode. The emissions of wheat straw burning, rice straw burning, and grass burning were different in portions of ions from one another.

Reference ( 99 ) 〈TOP〉

Oanh, N. T. K., B. T. Ly, D. Tipayarom, B. R. Manandhar, P. Prapat, C. D. Simpson and L.-J. S. Liu (2011). "Characterization of particulate matter emission from open burning of rice straw." Atmospheric Environment 45(2): 493-502.
連結：
Turn, S., B. Jenkins, J. Chow, L. Pritchett, D. Campbell, T. Cahill and S. Whalen (1997). "Elemental characterization of particulate matter emitted from biomass burning: Wind tunnel derived source profiles for herbaceous and wood fuels." Journal of Geophysical Research: Atmospheres (1984–2012) 102(D3): 3683-3699.
連結：
Iinuma, Y., E. Brüggemann, T. Gnauk, K. Müller, M. O. Andreae, G. Helas, R. Parmar and H. Herrmann (2007). "Source characterization of biomass burning particles: The combustion of selected European conifers, African hardwood, savanna grass, and German and Indonesian peat." Journal of Geophysical Research 112(D8).
連結：
Zhao, W., Z. Q. Li, G. B. Zhao, F. S. Zhang and Q. Y. Zhu (2008). "Effect of air preheating and fuel moisture on combustion characteristics of corn straw in a fixed bed." Energy Conversion and Management 49(12): 3560-3565.
連結：
Asa-Awuku, A., A. Nenes, S. Gao, R. Flagan and J. Seinfeld (2010). "Water-soluble SOA from Alkene ozonolysis: composition and droplet activation kinetics inferences from analysis of CCN activity." Atmospheric Chemistry and Physics 10(4): 1585-1597.
連結：

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