...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Stochastic environmental research and risk assessment >POPs and their ecological risk in sewage sludge of waste water treatment plants in Beijing, China
【24h】

POPs and their ecological risk in sewage sludge of waste water treatment plants in Beijing, China

机译：北京市污水处理厂污水污泥中的持久性有机污染物及其生态风险

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The concentrations of three classes of persistent organic compounds (POPs) in the sewage sludge from 12 Beijing wastewater treatment plants (WWTPs) were investigated and their ecological risks were assessed. The concentrations of 15 polycyclic aromatic hydrocarbons (PAHs), 27 polychlorinated biphenyl congeners (PCBs) and 15 organochlorine pesticides (OCPs) in sewage sludge were measured using gas chromatography-tandem mass spectrometry (GC-MS/MS) technique. Total PAHs concentrations ranged from 445.1 to 3,586.4 ng g~(-1) dry weight (dw), and the sum of the phenanthrene (Phe), anthracene (Ant), naphthalene (Nap), fluoranthene and chrysene accounted for 69.3-97.0 ％ of the total PAHs. The most abundant compounds present were 2-ring and 3-ring Ant, Phe and Nap, indicating a possible petrogenic source. Total PCBs concentrations were ranged between 3.2 and 21.8 ng g~(-1) dw. Total OCPs concentrations ranged from 38.0 to 143.3 ng g~(-1) dw, and the sum of total DDT, HCB and HCHs accounted for 69.6-97.7 ％ of the total OCPs. The levels of PAHs, PCBs and OCPs in this study were comparable to or lower than those reported in relatively WWTPs from other regions. In addition, they were also shown to have various distribution patterns, possibly due to their different wastewater sources. The 12 WWTPs may be classified into 4 groups because of their different sources of waste water based on cluster analysis. The ecological risk assessment shows that the concentrations of Ant or Fla at two sites, p,p'-DDE and ΣDDT at 83 ％ of the 12 sites may cause adverse ecological effects.
机译：调查了北京12个废水处理厂（WWTP）的污水污泥中三类持久性有机化合物（POPs）的浓度，并评估了其生态风险。使用气相色谱-串联质谱（GC-MS / MS）技术测量了污水污泥中15种多环芳烃（PAHs），27种多氯联苯同源物（PCBs）和15种有机氯农药（OCPs）的浓度。多环芳烃的总浓度为445.1至3,586.4 ng g（（-1）干重（dw），其中菲（Phe），蒽（Annt），萘（Nap），荧蒽和的总和为69.3-97.0％总PAH中的比例。存在的化合物最多的是2环和3环的Ant，Phe和Nap，表明可能是成岩来源。多氯联苯的总浓度在3.2至21.8 ng g〜（-1）dw之间。 OCPs的总浓度为38.0〜143.3 ng g〜（-1）dw，DDT，HCB和HCHs的总和占OCPs的69.6-97.7％。在这项研究中，PAHs，PCBs和OCPs的水平与其他地区的相对污水处理厂报告的水平相当或更低。此外，它们还显示出具有多种分布模式，这可能是由于它们的废水来源不同所致。根据聚类分析，由于污水处理厂的废水来源不同，这12个污水处理厂可分为4类。生态风险评估表明，在12个地点中有83％的p，p'-DDE和ΣDDT这两个地点的Ant或Fla浓度可能造成不利的生态影响。

著录项

  • 来源
  • 作者

    Cao Liu; Kun Li; Liqin Yu; Yiping Xu; Bingbin Huang; Jingdong Wu; Zijian Wang;

  • 作者单位

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China,Beijing Hydraulic Research Institute, Beijing 100048, People's Republic of China;

    Department of Water Environment, China Institute of Water Resources and Hydro-power Research, Beijing 100038, People's Republic of China;

    Department of Water Environment, China Institute of Water Resources and Hydro-power Research, Beijing 100038, People's Republic of China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China;

    Beijing Hydraulic Research Institute, Beijing 100048, People's Republic of China;

    Beijing Hydraulic Research Institute, Beijing 100048, People's Republic of China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China;

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

    PAHs; PCBs; OCPs; Sewage sludge; Beijing;

    机译：多环芳烃;PCB;OCP;污水污泥;北京;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号