Emission of Carbonaceous Species from Biomass Burning in the Traditional Rural Cooking Stove in Bangladesh
2018
Characterization of
carbonaceous species from the particulate matters (PM) after combustion of
seven commonly used biomass species, albizia tree (Albizia julibrissin),
dry leaves (mahogany tree), jackfruit tree (Artocarpus heterophyllus),
rain tree (Samanea saman), mahogany tree (Swietenia mahogany),
cow dung and mango tree (Mangifer aindica) was done. PM samples were
collected on quartz fiber filters emitted from biomass burning in a typical
rural cooking stove. PM loaded filters were characterized with scanning
electron microscope (SEM) for surface morphology, fourier transform infrared
(FTIR) to determine the functional group of organic compounds. Black carbon
(BC) and brown carbon (BrC) concentrations were determined with Aethalometer. A
TOC analyzer was used to determine the total organic carbon (TOC) present in
the biomass samples. The surface morphology was almost similar for all biomass
burning PM samples. The average concentrations of BC and BrC were 5.85 ± 4.40
and 13.0 ± 8.80 μg·mDž, respectively. The emission factors of BC and
BrC were 1.08 ± 0.89 and 2.35 ± 1.67 mg·gǃ,
respectively. Concentration of BC was the highest in dry leaves and the lowest
in mango tree. The emission factors of the determined biomass followed the
sequence-dry leaves of mahogany > albizia tree > jackfruit tree > rain
tree > cow dung > mahogany tree > mango tree. PM from mango tree had
lower emissions compared to the other biomass species used in this study.
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