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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Quality of the Bottom Sediment Prior to Dredging in the Golden Horn of Istanbul
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Quality of the Bottom Sediment Prior to Dredging in the Golden Horn of Istanbul

机译：在伊斯坦布尔金角湾挖泥之前的底泥质量

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摘要

The Golden Horn has experienced severe pollution due to uncontrolled domestic and industrial wastewater discharges until recent years. A restoration project has been developed by our universities, upon a request from Istanbul Metropolitan Municipality. Two principal alternatives for the dredging and disposal of the bottom sediments were considered: disposing on the land and disposing in the sea. Both of these alternatives include several sub-alternatives. Characterization of the sediment quality is crucially important for selecting the best alternative considering the cost, environmental impact and public acceptance. However, only a low and rather old studies were present with which it was not possible to get a comprehensive information on the critical sediment characteristics. Therefore, the aim of this study was determination of spatial distribution of sediment characteristics. The project area, at which the sediment quality determined, covers the part of the Golden Horn remaining at the upstream of Valide Sultan Bridge. The number of sampling stations were thirteen and the sediment samples were collected from 0.0 m, 5.0 m and 10.0m from the bottom surface. The following parameters were measured on each sample: Total solids, organic matter, total phosphorus. TKN, oil and grease, total sulphur, and sediment oxygen demand (SOD). Sediment oxygen demand parameter was further divided into three fractions, namely, biological (SOD-B) and chemical (SOD-C). Average organic content of the bottom sediment was around 10% while ammonia and sulfur exhibit very high levels. It is found that the bottom sediment is well stabilized with very low organic content below 5.0m from the bottom surface. It can be said that, removing the upper 5m of the bottom sediment will be enough for creating a relatively stable bottom surface which will cause oxygen depletion in the overlaying water at acceptable levels. High SOD values of the bottom sediment makes (he alternatives considering disposal in the Marmara Sea and Black Sea inapplicable. High SOD-C values, especially, indicate that the sediment will cause a tremendous reduction in the oxygen concentration in a very short time at any marine environment, and even it may create anaerobic conditions. Therefore, disposal of dredged sediment into abandoned mines 4km from the Golden Horn by a pressure pipeline has been chosen as the best applicable alternative.
机译：直到最近几年，由于无法控制的家庭和工业废水排放，金角一直遭受严重污染。我们的大学已应伊斯坦布尔市政府的要求开发了一个修复项目。考虑了挖泥和处置底部沉积物的两种主要选择：在陆地上处置和在海中处置。这两种选择都包括几个子选择。考虑到成本，环境影响和公众的接受程度，沉积物质量的表征对于选择最佳替代品至关重要。但是，目前仅进行了很少的研究，而且还比较陈旧，因此无法获得有关关键沉积物特征的全面信息。因此，本研究的目的是确定沉积物特征的空间分布。确定沉积物质量的项目区域覆盖了Valide Sultan桥上游保留的金角湾部分。采样站共有13个，从底面0.0 m，5.0 m和10.0m收集了沉积物样品。对每个样品测量以下参数：总固体，有机物，总磷。 TKN，油脂，总硫和沉积物需氧量（SOD）。沉积物需氧量参数又分为生物（SOD-B）和化学（SOD-C）三个部分。底部沉积物的平均有机含量约为10％，而氨和硫的含量很高。发现底部沉积物被很好地稳定，离底部表面5.0m以下的有机物含量非常低。可以说，除去底部沉积物的上部5m足以形成相对稳定的底部表面，这将导致上覆水中的氧气消耗达到可接受的水平。底部沉积物的高SOD值使得（他的选择考虑到在马尔马拉海和黑海的处置是不适用的。特别是高SOD-C值表明，沉积物将在任何短时间内在很短的时间内引起氧气浓度的极大降低。海洋环境，甚至可能产生厌氧条件，因此，选择压力管道将疏sediment的沉积物处理到距金霍恩（Golden Horn）4公里的废弃矿山中的最佳选择。

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  • 作者

    C. Kinaci; B. Inanc; A. F. Aydin; E. Yuksel; M. F. Sevimli; O. Arikan; D. Topacik;

  • 作者单位

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

    Marmara University, Faculty of Engineering, Department of Environmental Engineering, Goztepe, Istanbul, Turkey;

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

    Istanbul Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, Maslak, Istanbul, Turkey;

  • 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 环境科学、安全科学;
  • 关键词

    dredging; golden horn; pollution; sediment oxygen demand; sediment quality;

    机译：疏;金角;污染;底泥需氧量;底泥质量;

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