DOI: 10.1016/j.atmosenv.2014.07.062
Scopus记录号: 2-s2.0-84906699520
论文题名: Gaseous and particulate emission profiles during controlled rice straw burning
作者: Sanchis E ; , Ferrer M ; , Calvet S ; , Coscollà C ; , Yusà V ; , Cambra-López M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 25
结束页码: 31
语种: 英语
英文关键词: Biomass burning
; Greenhouse gas
; Moisture content
; Organic pollutants
; Particulate matter
Scopus关键词: Carbon dioxide
; Combustion
; Greenhouse gases
; Heavy metals
; Moisture
; Organic pollutants
; Particulate emissions
; Polycyclic aromatic hydrocarbons
; Moisture
; Organic pollutants
; Atmospheric pollutants
; Biomass-burning
; Combustion characteristics
; Incomplete combustion
; Moisture conditions
; Particulate Matter
; Pollutant emission
; Polycyclic aromatic hydrocarbons (PAHS)
; Rice straws
; Moisture determination
; Greenhouse gases
; arsenic
; benz(b)fluoranthene
; benz(g,h,i)perylene
; benz(j)fluoranthene
; benz(k)fluoranthene
; benzo[a]pyrene
; benz[a]anthracene
; cadmium
; carbon dioxide
; dibenz(a,h)antracene
; dioxin
; fluoranthene
; fuel
; heavy metal
; indene(1,2,3 c,d)pyrene
; lead
; nickel
; polycyclic aromatic hydrocarbon
; unclassified drug
; carbon dioxide
; dioxin
; heavy metal
; polycyclic aromatic hydrocarbon
; ash
; biomass burning
; crop residue
; emission inventory
; greenhouse gas
; moisture content
; organic pollutant
; PAH
; particulate matter
; rice
; atmospheric pollution
; carbon dioxide
; combustion
; emission control
; heavy metal
; straw
; article
; combustion
; greenhouse gas
; humidity
; moisture
; particulate matter
; pollutant
; priority journal
; rice
; straw
; temperature
; air pollutant
; Article
; ash
; atmospheric moisture
; burn
; carbon footprint
; combustion
; controlled study
; environmental temperature
; heating
; particulate matter
; rice straw burning
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Burning of rice straw can emit considerable amounts of atmospheric pollutants. We evaluated the effect of rice straw moisture content (5%, 10%, and 20%) on the emission of carbon dioxide (CO2) and on the organic and inorganic constituents of released particulate matter (PM): dioxins, heavy metals, and polycyclic aromatic hydrocarbons (PAHs). Four burning tests were conducted per moisture treatment using the open chamber method. Additionally, combustion characteristics, including burning stages, durations, temperature, and relative humidity, were recorded. Burning tests showed flaming and smoldering stages were significantly longer in 20% moisture treatment (P<0.05) compared with the rest. The amount of burned straw and ashes decreased with increasing straw moisture content (P<0.001). Carbon dioxide was the main product obtained during combustion with emission values ranging from 692gCO2kgdrystraw-1 (10% moisture content) to 835gCO2kgdrystraw-1 (20% moisture content). Emission factors for PM were the highest in 20% moisture treatment (P<0.005). Fine PM (PM2.5) accounted for more than 60% of total PM mass. Emission factors for dioxins increased with straw moisture content, being the highest in 20% moisture treatment, although showing a wide variability among burning tests (P>0.05). Emissions factors for heavy metals were low and similar among moisture treatments (P>0.05). Emission factors for individual PAHs were generally higher in 20% moisture treatment. Overall, emission factors of atmospheric pollutants measured in our study were higher in the 20% moisture content. This difference could be attributed to the incomplete combustion at higher levels of rice straw moisture content. According to our results, rice straw burning should be done after straw drying and under minimal moisture conditions to lower pollutant emission levels. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80926
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Animal Science and Technology, Universitat Politècnica de València, Camino de Vera s.n., 46020 Valencia, Spain; Centre for Public Health Research (CSISP-FISABIO), 21 Avenida Catalunya, 46020 Valencia, Spain
Recommended Citation:
Sanchis E,, Ferrer M,, Calvet S,et al. Gaseous and particulate emission profiles during controlled rice straw burning[J]. Atmospheric Environment,2014-01-01,98