Jiraporn Chomanee1, Surajit Tekasakul1, Perapong Tekasakul 2, Masami Furuuchi3, Yoshio Otani3

  • 1 Department of Chemistry and Center for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
  • 2 Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
  • 3 Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan

Received: November 30, 2009
Revised: November 30, 2009
Accepted: November 30, 2009
Download Citation: ||https://doi.org/10.4209/aaqr.2009.02.0013  

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Cite this article:
Chomanee, J., Tekasakul, S., Tekasakul, P., Furuuchi, M. and Otani, Y. (2009). Effects of Moisture Content and Burning Period on Concentration of Smoke Particles and Particle-Bound Polycyclic Aromatic Hydrocarbons from Rubber-Wood Combustion. Aerosol Air Qual. Res. 9: 404-411. https://doi.org/10.4209/aaqr.2009.02.0013


 

ABSTRACT


Physical and chemical characteristics of particles from rubber-wood combustion in a natural rubber sheet smoking process were studied. Experimental parameters include wood moisture content and wood-burning period. The size distribution of smoke particles was measured by using an 8-stage Andersen air sampler. Total smoke particle concentration was determined by collecting particles using a modified high volume sampler. Polycyclic Aromatic Hydrocarbons (PAHs) were extracted with Benzene-Ethanol by using ultrasonic technique and analyzed by HPLC/UV detection. Results show that the size distribution of smoke particles is single-mode in which the mass median aerodynamic diameter (MMAD) is 0.68 μm and the average smoke concentration is 15.806 mg/m3. This is equivalent to a mass emission to workplace of 4.33 kg/month/room. The smoke particle concentration and associated PAH concentration clearly depend on the wood moisture content and burning period. The highest PAH concentration and smoke particle concentrations were found to be 60.59 to 118.06 μg/m3 and 23.35 to 47.54 mg/m3, respectively, for a wood moisture content of 37.4 to 73.6% d.b. (dry basis) at the initial period. Smoke particle-bound PAHs are dominated by 4-6 ring PAH compounds that contribute to more than 60% of the total PAHs.


Keywords: PAHs; Rubber-wood; Smoke particle; Moisture content; Burning period


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