Wei Ye1, Jun Han 1, Linbo Qin1, Yuqi Li1, Furuuchi Masami2, Hong Yao3

  • 1 Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan 430081, China
  • 2 Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-8667, Japan
  • 3 State Key Laboratory of Coal Combustion, Huazhong university of Science and Technology, Wuhan 430074, Hubei, China

Received: October 5, 2011
Revised: February 2, 2012
Accepted: February 2, 2012
Download Citation: ||https://doi.org/10.4209/aaqr.2011.10.0164  

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Cite this article:
Ye, W., Han, J., Qin, L., Li, Y., Masami, F. and Yao, H. (2012). Emission Characteristics of PM10 during Sewage Sludge Combustion. Aerosol Air Qual. Res. 12: 420-425. https://doi.org/10.4209/aaqr.2011.10.0164


 

ABSTRACT


Combustion of sewage sludge was conducted in a laboratory-scale drop tube furnace to investigate the emission characteristics of PM10 (particles with the aerodynamic diameter smaller than 10 μm). The experiment temperature was varied from 1173 to 1573 K. The results show that the emissions of submicron particulate matters (PM1, particles with the aerodynamic diameter smaller than 1 μm) and supermicron particulate matters (PM1–10, particles with aerodynamic diameter ranging from 1 μm to 10 μm) both decrease with temperature increasing. Meanwhile, the morphology of PM10 was also analyzed by X-ray fluorescence (XRF) and scanning electron microcopy (SEM) to further understand its formation mechanisms. The results indicate that PM1 is mainly formed from the vaporization and condensation process and its major elemental compositions are Na, S and P, while the agglomeration of melting minerals and the fragmentation of minerals contribute to PM1–10, which is chiefly composed of Si, Al and Ca.


Keywords: Sewage sludge; Combustion; PM10


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