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| Emission characteristics of pollutants from typical biomass combustion in Guangxi Province，China |
| Received:August 27, 2021 |
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| KeyWord:biomass;burning;pollutant;emission factor;composition characteristic;chemical reactivity |
| Author Name | Affiliation | E-mail | | LUO Yiran | School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China | | | WEI Jinyi | School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China | | | GUO Songjun | School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China | guosj@gxu.edu.cn | | CHEN Laiguo | Guangdong Province Engineering Laboratory for Air Pollution Control, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | MO Zhaoyu | Scientific Research Academy of Guangxi Environmental Protection, Nanning 530022, China | |
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| Abstract: |
| We explored the emission characteristics of gaseous pollutants produced from common biomass combustion in south China. The flue gas produced by common biomass combustion in Guangxi was measured using a stove, and the emission factors, component characteristics, and chemical reactivity of pollutants emitted by biomass combustion were analyzed. The results showed that the average emission factors of CO, NOx, CH4, and non-methane volatile organic compounds（NMVOCs）from biomass combustion were 36.42, 1.73, 0.89 g·kg-1, and 2.39 g·kg-1, respectively. Acetaldehyde was the most important pollutant among the aldehydes and ketones from biomass combustion, with emission factors ranging from 147.09 mg·kg-1 to 599.10 mg·kg-1. The total ozone formation potential（OFP）of aldehydes and ketones of seven types of biomass ranged from 6.73 mg·m-3 to 18.58 mg·m-3, among which formaldehyde, acetaldehyde, and acrolein had high OFPs. The average total emissions of CO, NOx, CH4, NMVOCs, and aldehydes and ketones from biomass straw burning in Guangxi from 2010 to 2019 were as follows：252 660.14, 19 060.86, 23 765.92, 52 795.02 t and 40 410.62 t, respectively. Rice, maize, and sugarcane straw were the main sources contributing to air pollutants released by biomass burning in Guangxi. |
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