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首页> 外文期刊>Environmental Science & Technology >Coexistence of Cu, Fe, Pb, and Zn Oxides and Chlorides as a Determinant of Chlorinated Aromatics Generation in Municipal Solid Waste Incinerator Fly Ash
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Coexistence of Cu, Fe, Pb, and Zn Oxides and Chlorides as a Determinant of Chlorinated Aromatics Generation in Municipal Solid Waste Incinerator Fly Ash

机译：Cu，Fe，Pb和Zn氧化物与氯化物的共存是决定城市固体废物焚化炉粉煤灰中氯化芳烃生成量的因素

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摘要

We investigated chemical determinants of the generation of chlorinated aromatic compounds (aromatic-Cls), such as porychlorinated biphenyls (PCBs) and chlorobenzenes (CBzs), in fly ash from municipal solid waste incineration. The influences of the following on aromatic-Cls formation in model fly ash (MFA) were systematically examined quantitatively and statistically: (ⅰ) inorganic chlorides (KCl, NaCl, CaCl_2), (ⅱ) base materials (SiO_2, Al_2O_3, CaCO_3), (ⅲ) metal oxides (CuO, Fe_2O_3, PbO, ZnO), (ⅳ) metal chlorides (GuCl_2, FeCl_3, PbCl_2, ZnCl_2), and (ⅴ) "coexisting multi-models." On the basis of aromatic-Cls concentrations, the ∑CBzs/∑PCBs ratio, and the similarity between distribution patterns, MFAs were categorized into six groups. The results and analysis indicated that the formation of aromatic-Cls depended strongly on the "coexistence condition", namely multimodels composed of not only metal chlorides, but also of metal oxides. The precise replication of metal chloride to oxide ratios, such as the precise ratios of Cu-, Fe-, Pb-, and Zn-chlorides and oxides, may be an essential factor in changing the thermochemical formation patterns of aromatic-Cls. Although CuCl_2, acted as a promoter of aromatic-Cls generation, statistical analyses implied that FeCl_3, also largely influenced the generation of aromatic-Cls under mixture conditions. Various additional components of fly ash were also comprehensively analyzed.
机译：我们研究了从城市固体废物焚烧飞灰中生成氯化芳族化合物（aromatic-Cls）的化学决定因素，例如聚氯联苯（PCBs）和氯苯（CBzs）。系统地定量和统计地研究了以下因素对模型粉煤灰（MFA）中芳族Cls形成的影响：（ⅰ）无机氯化物（KCl，NaCl，CaCl_2），（ⅱ）基础材料（SiO_2，Al_2O_3，CaCO_3）， （ⅲ）金属氧化物（CuO，Fe_2O_3，PbO，ZnO），（ⅳ）金属氯化物（GuCl_2，FeCl_3，PbCl_2，ZnCl_2）和（ⅴ）“多模型共存”。根据芳香族-Cls的浓度，∑CBzs / ∑PCBs的比例以及分布模式之间的相似性，MFA分为六类。结果和分析表明，芳族氯化物的形成强烈依赖于“共存条件”，即不仅由金属氯化物，而且由金属氧化物组成的多模型。金属氯化物与氧化物比率的精确复制，例如铜，铁，铅和锌氯化物与氧化物的精确比率，可能是改变芳族氯化物的热化学形成方式的重要因素。尽管CuCl_2可以促进芳香族Cls的生成，但统计分析表明FeCl_3在混合条件下也极大地影响了芳香族Cls的生成。粉煤灰的各种其他成分也进行了综合分析。

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  • 来源
    《Environmental Science & Technology》 |2014年第1期|85-92|共8页
  • 作者

    Takashi Fujimori; Yuta Tanino; Masaki Takaoka;

  • 作者单位

    Department of Global Ecology, Graduate School of Global Environmental Studies,Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, 615-8540, Kyoto, Japan,Department of Environmental Engineering,Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, 615-8540, Kyoto, Japan;

    Department of Environmental Engineering,Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, 615-8540, Kyoto, Japan;

    Department of Global Ecology, Graduate School of Global Environmental Studies,Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, 615-8540, Kyoto, Japan,Department of Environmental Engineering,Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, 615-8540, Kyoto, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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