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Emission of polycyclic aromatic hydrocarbons from coal and sewage sludge co-combustion in a drop tube furnace

机译：落管炉中煤和污水污泥共燃烧产生的多环芳烃排放

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摘要

The emission characteristics of polycyclic aromatic hydrocarbons (PAHs) during coal and sewage sludge co-combustion were investigated in a laboratory-scale drop tube furnace. The experimental results demonstrated that coal and sewage sludge co-combustion was beneficial in reducing PAH emissions and PAH toxic equivalent (TEQ) concentrations. Meanwhile, the five-ring PAHs were the main contributor in reducing the concentration of PAHs and TEQ. Moreover, the two- and five-ring PAH concentrations decreased as the mass fraction of sewage sludge in the mixture increased from 0% to 100%. It was also found that PAHs from coal mono-combustion was dominated by the four- and five-ring PAHs. As for the sewage sludge mono-combustion, the three- and four-ring PAHs were the principal components.
机译：在实验室规模的滴管炉中研究了煤和污水污泥共燃烧期间多环芳烃（PAHs）的排放特征。实验结果表明，煤和污水污泥的共燃烧有利于减少PAH排放和PAH有毒当量（TEQ）浓度。同时，五环PAHs是降低PAHs和TEQ浓度的主要因素。此外，随着混合物中污水污泥的质量分数从0％增加到100％，二环和五环PAH浓度降低。还发现，煤单燃烧的多环芳烃由四环和五环多环芳烃占主导。至于污水污泥的单燃烧，三环和四环PAH是主要成分。

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  • 来源
    《Waste management & research》 |2012年第9期|p.875-882|共8页
  • 作者

    Jun Han; Linbo Qin; Wei Ye; Yuqi Li; Long Liu; Hao Wang; Hong Yao;

  • 作者单位

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology, Wuhan, Hubei, China;

    State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coal; sewage sludge; co-combustion; PAHs;

    机译：煤;污水污泥;共燃;多环芳烃;

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