Chemical characterization of biomass burning deposits from cooking stoves in Bangladesh

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• 作者：Abdus Salam^a ; ^{asalam@gmail.com} ; ^{salam1971@yahoo.com} ; Mahmodul Hasan^a ; Bilkis A. Begum^b ; Monira Begum^c ; Swapan K. Biswas^d
• 关键词：Biomass burning ; Smoke deposit ; Cooking stove ; Trace element ; Indoor air pollution
• 刊名：Biomass and Bioenergy
• 出版年：2013
• 出版时间：May, 2013
• 年：2013
• 卷：52
• 期：Complete
• 页码：122-130
• 全文大小：703 K

文摘

Biomass burning smoke deposits were characterized from cooking stoves in Brahmondi, Narsingdi, Bangladesh. Arjun, bamboo, coconut, madhabilata, mahogany, mango, rice husk coil, plum and mixed dried leaves were used as biomasses. Smoke deposits were collected from the ceiling (above the stove) of the kitchen on aluminum foil. Deposits samples were analyzed with X-ray fluorescence (XRF) spectroscopy for trace elements determination. UV-visible spectrophotometer was used for ions analysis. The surface morphology of the smoke deposits was studied with scanning electron microscope (SEM). Elevated concentrations of the trace elements were observed, especially for toxic metals (Pb, Co, Cu). The highest concentration of lead was observed in rice husk coil among the determined biomasses followed by mahogany and arjun, whereas the lowest concentration was observed in bamboo. Potassium has the highest concentration among the determined trace elements followed by calcium, iron and titanium. Trace elements such as potassium, calcium, iron showed significant variation among different biomass burning smoke deposits. The average concentrations of sulfate, nitrate, and phosphate were 38.0, 0.60, 0.73?mg?kg^?1, respectively. The surface morphology was almost similar for these biomass burning deposit samples. The Southeast Asian biomass burning smoke deposits had distinct behavior from European and USA wood fuels combustion.