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Trace metal speciation at the sediment-water interface of Vidy Bay: influence of contrasting sediment characteristics

机译：维迪湾沉积物-水界面的痕量金属形态：沉积物对比特征的影响

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摘要

Trace metal analysis and speciation were performed at the sediment-water interface of Vidy Bay (Lake Geneva, Switzerland). This bay is impacted by hazardous compounds released via the sewage effluent of a major wastewater treatment plant (WWTP). Sediment cores and overlying water were sampled simultaneously at 12 sites characterized by contrasting sediment surface characteristics (color, methanogenic activity, bacterial mat) using corers deployed from a MIR submarine or research boat. The concentrations of trace metals in particulate form in the sediment and dissolved in the interstitial water, as well as the particulate, colloidal and dynamic fractions of trace metals in the overlying water were determined by combining an in situ and laboratory multi-method analytical approach. The results indicate differences in trace metal speciation in the sediment and overlying water at the 12 investigated sites. The observed differences were found to be more correlated to bacterial community, abundance, type and activity than to distance from the WWTP sewage outlet.
机译：在维迪湾（瑞士日内瓦湖）的沉积物-水界面进行了痕量金属分析和形态分析。该海湾受到主要污水处理厂（WWTP）污水排放释放的有害化合物的影响。使用从MIR潜艇或研究船上部署的挖泥机，同时在12个地点同时取样了沉积物核心和上覆水，这些地点的特征是与沉积物表面特征（颜色，产甲烷活性，细菌垫）形成鲜明对比。通过结合原位和实验室多方法分析方法，确定了沉积物中颗粒状和溶解在间隙水中的痕量金属的浓度，以及上覆水中痕量金属的颗粒，胶体和动态级分。结果表明，在12个调查点的沉积物和上覆水中痕量金属形态的差异。发现观察到的差异与细菌群落，丰度，类型和活性的关系更大，而不是与污水处理厂污水出口的距离更相关。

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  • 来源
    《Aquatic Sciences》 |2014年第1期|S47-S58|共12页
  • 作者

    Matthieu Masson; Mary-Lou Tercier-Waeber;

  • 作者单位

    Analytical and Environmental Chemistry, Department of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Sciences Ⅱ, 30 Quai E-Ansermet, 1211 Geneva, Switzerland;

    Analytical and Environmental Chemistry, Department of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Sciences Ⅱ, 30 Quai E-Ansermet, 1211 Geneva, Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metal speciation; Sediment; Interstitial water; Overlying water; Bacterial mat; Methanogenesis;

    机译：金属形态;沉淀;间隙水;上覆水;菌垫;甲烷生成;

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