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首页> 外文期刊>Environmental Science & Technology >Occurrence of Synthetic Phenolic Antioxidants and Major Metabolites in Municipal Sewage Sludge in China
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Occurrence of Synthetic Phenolic Antioxidants and Major Metabolites in Municipal Sewage Sludge in China

机译：中国城市污水污泥中酚类抗氧化剂和主要代谢产物的发生

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摘要

Synthetic phenolic antioxidants (SPAs) are one group of widely used additive chemicals, which have not yet had focused attention except for a few compounds such as 2,6-di-tert-butyl-4-methylphenol (BHT). In this study, the occurrence and composition profiles of 12 frequently used SPAs and three BHT metabolites were investigated in fifty-six sludge samples collected from individual wastewater treatment plants in China. Eleven SPAs were positively found in the sludge samples, in which, to our knowledge, eight SPA compounds were identified for the first time in the environment. BHT, 4-tert-octyiphenol (4-tOP), and 2,4,6-tri-tert-bultylphenol (AO 246) were the most dominant SPAs in the sludge at mean concentrations of 4.14 μg/g, 374 ng/g, and 98.1 ng/g d.w. (dry weight). Meanwhile, three BHT metabolites, including 3,5-di-tert-butyl-4-hydroxybenzaldehyde (BHT-CHO), 2,6-di-tert-butyl-1,4-benzoquinone (BHT-Q), and 2,6-di-tert-butyl-4-hydroxy-4-methyl-2,5-cyclohexadienone (BHT-quinol), were also found in most of the samples (＞98.2%) with mean concentrations of 141, 562, and 225 ng/g d.w., respectively. The activated sludge system (anaerobic, anoxic, and oxic tanks) of a wastewater treatment plant was further investigated for the removal efficiencies of the SPAs. High removal efficiencies (80.1-89.2%) were found for the six detected SPAs in the aqueous phase, while generation of large proportions of the three BHT metabolites was also observed.
机译：合成酚类抗氧化剂（SPAs）是一类广泛使用的添加剂化学品，除少数化合物（例如2,6-二叔丁基-4-甲基苯酚（BHT））外，尚未引起人们的广泛关注。在这项研究中，对从中国各个污水处理厂收集的56种污泥样品中的12种常用SPA和3种BHT代谢物的发生和组成特征进行了调查。在污泥样品中肯定发现了11种SPA，据我们所知，在环境中首次发现了8种SPA化合物。 BHT，4-叔辛基苯酚（4-tOP）和2,4,6-三叔丁基苯酚（AO 246）是污泥中最主要的SPA，平均浓度为4.14μg/ g，374 ng / g和98.1 ng / g dw （净重）。同时，三种BHT代谢物包括3,5-二叔丁基-4-羟基苯甲醛（BHT-CHO），2,6-二叔丁基-1,4-苯醌（BHT-Q）和2在大多数样品（> 98.2％）中也发现了6-二叔丁基-4-羟基-4-甲基-2,5-环己二酮（BHT-喹诺酮），平均浓度为141、562和225 ng / g dw。进一步研究了废水处理厂的活性污泥系统（厌氧池，缺氧池和有氧池）对SPA的去除效率。发现在水相中检测到的六个SPA具有很高的去除效率（80.1-89.2％），同时还观察到了大比例的三种BHT代谢物的产生。

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  • 来源
    《Environmental Science & Technology》 |2015年第4期|2073-2080|共8页
  • 作者

    Runzeng Liu; Shanjun Song; Yongfeng Lin; Ting Ruan; Guibin Jiang;

  • 作者单位

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

  • 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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