頁籤選單縮合
題名 | Emission Factors of NOx, SO₂, PM and VOCs in Pharmaceuticals, Brick and Food Industries in Shanxi, China |
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作者 | Hu, Yao; Li, Zhiyong; Wang, Yutong; Wang, Lei; Zhu, Hongtao; Chen, Lan; Guo, Xiaobiao; An, Caixiu; Jiang, Yunjun; Liu, Aiqin; | 書刊名 | Aerosol and Air Quality Research |
卷期 | 19:8 2019.08[民108.08] |
頁次 | 頁1785-1797 |
分類號 | 445.63 |
關鍵詞 | Emission factor; NOx; SOx; VOCs; Pharmaceutical industry; Brick industry; |
語文 | 英文(English) |
英文摘要 | The acquisition of accurate emission factors (EFs) of pollutants is an inevitable step to the establishment of emission inventories for development of pollution control policies. The current studies were focused on large-scale industries (LSIs) although tremendous pollutants emitted from the small-scale industries (SSIs) with small coal-fired boilers (SCFBs) ascribe to the deficiency of pollutant removal facilities (RFs). A systematic field sampling and measurements conducted in 51 enterprises involving production of pharmaceuticals, brick and food to obtain the EFs of SO_2, NO_x, PM, and VOCs (SNPV) associated with coal consumption (EF_I), industrial output (EF_(II)), and product yield (EF_(III)). Among them, PM-RFs were all equipped except for 3 brick factories, no NO_(x)- and VOCs-RFs were installed, and SO_2-RFs were installed in part. Obvious fluctuations existed in EF_I and EF_(II) values among 51 companies owning to the differences of pollutant removal efficiencies, coal compositions, annual outputs, production processes, and products. Co-burning of coal and coal gangue (raw material) in brick production weakened the correlation between sulfur contents in coal and SO_2 EF_I values. The using of organic solvents in drug making process promoted the emission of VOCs. SO_2 EFs in factories with RFs were much lower than those factories without RFs. SO_2 EFs dominated over those of PM and NO_x among three kinds of enterprises, especially in brick companies. For EF_I (in kg t^(-1)), food industry possessed highest value for SO_2, PM, and NO_x, while the maximum value for VOCs occurred at pharmaceuticals industry. Due to the low output values of brick companies, their SNPV possessed the highest EF_(II) compared to the other two kinds of factories. NO_x EFs experienced lessen fluctuations than other pollutants among all the factories due to the different formation mechanism and no installation of NO_x RFs. EF_(III) showed various fluctuations due to the different product types. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。