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首页> 外文期刊>Journal of Hazardous Materials >Phenol removal efficiencies of sewage treatment processes and ecological risks associated with phenols in effluents
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Phenol removal efficiencies of sewage treatment processes and ecological risks associated with phenols in effluents

机译：污水处理过程中的苯酚去除效率以及与废水中的苯酚相关的生态风险

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摘要

Phenols pose a risk to the environment and to human health. Phenols found in rivers mainly originate from sewage treatment plants (STPs). In this paper, analytical procedures, based on deconvolution technology and retention time locking technology, were investigated to simultaneously identify and determine the concentrations of fifty different phenols in sewage water and effluents. Seventeen different phenols were found in sewage and five — including two regulated phenols (phenol and 2,4,6-trichlorophenol) and three un-regulated phenols (2-chlorophenol, 2,5-dichlorophenol and 2,4-dichloro-3-ethyl-6-nitrophenol) — were identified in effluents of five STPs. A number of processes undertaken in five STPs were also investigated. These processes can be used to remove phenols at efficiency levels of between 88.95% and 99.97%. Among the processes tested, a combination of anaerobic/anoxic/oxic (A~2/O), continuous microfiltration (CMF), ozone oxidation (O_3), and chlorination, appeared to be the best option for the removal of key phenols. Among the five phenols identified in effluents, 2,5-dichlorophenol (1.89 μg/L) and 2,4-dichloro-3-ethyl-6-nitrophenol (22.6 μg/L) pose the greatest ecological risk to receiving waters.
机译：苯酚对环境和人类健康构成威胁。在河流中发现的苯酚主要来源于污水处理厂（STP）。本文研究了基于去卷积技术和保留时间锁定技术的分析程序，以同时鉴定和确定污水和废水中五十种不同酚的浓度。在污水中发现了十七种不同的苯酚，五种包括两种受管制的苯酚（苯酚和2,4,6-三氯苯酚）和三种未经管制的苯酚（2-氯苯酚，2,5-二氯苯酚和2,4-二氯-3-苯酚）在五个STP的流出物中鉴定出了乙基-6-硝基苯酚）。还对五个STP中进行的许多过程进行了调查。这些过程可用于以88.95％至99.97％的效率水平去除苯酚。在所测试的过程中，厌氧/缺氧/氧化（A〜2 / O），连续微滤（CMF），臭氧氧化（O_3）和氯化的组合似乎是去除关键酚的最佳选择。在废水中鉴定出的五种苯酚中，2,5-二氯苯酚（1.89μg/ L）和2,4-二氯-3-乙基-6-硝基苯酚（22.6μg/ L）对接收水构成最大的生态风险。

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  • 来源
    《Journal of Hazardous Materials》 |2012年第30期|p.286-292|共7页
  • 作者

    Wenjue Zhong; Donghong Wang; Xiaowei Xu;

  • 作者单位

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmentai Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmentai Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmentai Sciences, Chinese Academy of Sciences, P.O. Box 2871, 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    phenols; sewage treatment process; removal efficiency; ecological risk;

    机译：酚类污水处理过程;去除效率;生态风险;

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