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首页> 外文期刊>Environmental research >Levels, composition profiles and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in sludge from ten textile dyeing plants
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Levels, composition profiles and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in sludge from ten textile dyeing plants

机译：十家纺织印染厂污泥中多环芳烃的含量，组成概况和风险评估

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摘要

As components of synthetic dyes, polycyclic aromatic hydrocarbons (PAHs) are present as contaminants in textile dyeing sludge due to the recalcitrance in wastewater treatment process, which may pose a threat to environment in the process of sludge disposal. In order to evaluate PAHs in textile dyeing sludge, comprehensive investigation comprising 10 textile dyeing plants was undertaken. Levels, composition profiles and risk assessment of 16 EPA-priority PAHs were analyzed in this study. The total concentrations of 16 PAHs (∑_(16) PAHs) varied from 1463 ± 177 ng g~(-1) to 16,714 ± 1,507 ng g~(-1) with a mean value of 6386 ng g~(-1). The composition profiles of PAHs were characterized by 3- and 4-ring PAHs, among which phenanthrene, anthracene and fluoranthene were the most dominant components. The mean benzo[a]pyrene equivalent (BaP_(eq)) concentration of ∑_(16) PAHs in textile dyeing sludge was 423 ng g~(-1), which was 2-3 times higher than concentrations reported for urban soil. According to ecological risk assessment, the levels of PAHs in the textile dyeing sludge may cause a significant risk to soil ecosystem after landfill or dumping on soil.
机译：作为合成染料的成分，由于废水处理过程中的顽固性，多环芳烃（PAHs）作为污染物存在于纺织品染色污泥中，在污泥处置过程中可能对环境构成威胁。为了评估纺织品染色污泥中的多环芳烃，进行了包括10个纺织品染色厂的综合研究。在这项研究中分析了16种EPA优先PAH的水平，成分概况和风险评估。 16种多环芳烃（∑_（16）PAHs）的总浓度在1463±177 ng g〜（-1）至16,714±1,507 ng g〜（-1）之间，平均值为6386 ng g〜（-1） 。 PAHs的组成特征以3和4环PAHs为特征，其中菲，蒽和荧蒽是最主要的成分。纺织印染污泥中∑_（16）PAHs的苯并[a] equivalent当量（BaP_（eq））平均浓度为423 ng g〜（-1），是城市土壤中报道浓度的2-3倍。根据生态风险评估，纺织品染色污泥中的PAHs含量可能在填埋或倾倒在土壤后对土壤生态系统造成重大风险。

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  • 来源
    《Environmental research》 |2014年第7期|112-118|共7页
  • 作者

    Xun-An Ning; Mei-Qing Lin; Ling-Zhi Shen; Jian-Hao Zhang; Jing-Yu Wang; Yu-Jie Wang; Zuo-Yi Yang; Jing-Yong Liu;

  • 作者单位

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polycyclic aromatic hydrocarbons (PAHs); Textile dyeing sludge; Ecological risk assessment; Carcinogenic risk assessment; Disposal;

    机译：多环芳烃（PAHs）;纺织印染污泥;生态风险评估;致癌风险评估;处置方式;

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