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首页> 外文期刊>Environmental Modeling & Assessment >Numerical Study of Hydrodynamics and Water Quality in Qinhuangdao Coastal Waters, China: Implication for Pollutant Loadings Management
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Numerical Study of Hydrodynamics and Water Quality in Qinhuangdao Coastal Waters, China: Implication for Pollutant Loadings Management

机译：秦皇岛沿海水域流体动力学和水质的数值研究：污染物载荷管理的影响

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摘要

Protecting coastal area marine environments from pollution is critical to ensure sustainable development. However, the hydro-dynamic and water environmental characteristics of many coastal waters are poorly understood. Furthermore, the levels of pollutants loading into coastal waters are rarely quantified. In this study, a hydrodynamic and pollutant transport model (based on MIKE 21 modules) was established in Qinhuangdao coastal waters, China. The simulated hydrodynamics and water quality parameters were highly congruent with measured values, exhibiting error levels below 20%. In Qinhuangdao coastal waters, the seawater flows primarily from southwest to northeast along the coast, with velocities in the range 0-0.4 m/s and 0-0.3 m/s during flood and ebb tides, respectively. Results from this study indicated that these waters were characterized by a weak tidal current, with mean velocities varying in the range 0-0.5 m/s. The chemical oxygen demand (COD) concentration of the coastal waters was in the range 0.1-3.7 mg/L, and the COD pollutants were diffused approximately 3-10 km off the coastline. The water environment carrying capacity (WECC) at each point source was also calculated based on the response coefficients; further, WECC in Qinhuangdao coastal waters was calculated at 544.01 t/a and 1088.02 t/a under two Chinese water quality levels (levels Ⅰ and Ⅱ), respectively. The results provided specific valuable information for controlling pollutants from rivers into coastal waters and managing the Qinhuangdao coastal waters environment.
机译：保护沿海地区海洋环境免受污染至关重要，确保可持续发展。然而，许多沿海水域的水力和水环境特征被理解得很差。此外，污染物载入沿海水域的水平很少量化。在本研究中，在秦皇岛沿海水域建立了流体动力学和污染物运输模型（基于MIKE 21模块）。模拟的流体动力学和水质参数具有高度一致的测量值，表现出低于20％的误差水平。在秦皇岛沿海水域，海水主要从西南到东北沿岸，分别在洪水和退潮期间0-0.4米/秒和0-0.3米/秒的速度。本研究结果表明，这些水的特征在于弱潮流，平均速度在0-0.5米/秒的范围内变化。沿海水域的化学需氧量（COD）浓度在0.1-3.7mg / L的范围内，鳕鱼污染物脱落了海岸线约3-10千米。还基于响应系数计算每个点源的水环境承载能力（WECC）;此外，秦皇岛沿海水域的WECC分别计算在两种中国水质水平（Ⅰ和Ⅱ级）下的544.01吨/ A和1088.02吨/ A计算。结果为将河流污染物纳入沿海水域并管理秦皇岛沿海水域环境提供了具体的有价值的信息。

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  • 来源
    《Environmental Modeling & Assessment》 |2021年第1期|63-76|共14页
  • 作者

    Wei Huang; Wei Ma; Xiaobo Liu; Wenqi Peng; Jianmin Zhang;

  • 作者单位

    State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower Research Beijing 100038 China Department of Water Ecology and Environment China Institute of Water Resources and Hydropower Research Beijing 100038 China State key laboratory of hydraulics and mountain river engineering Sichuan University Chengdu 610066 Sichuan China;

    Department of Water Ecology and Environment China Institute of Water Resources and Hydropower Research Beijing 100038 China;

    State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower Research Beijing 100038 China Department of Water Ecology and Environment China Institute of Water Resources and Hydropower Research Beijing 100038 China;

    State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower Research Beijing 100038 China Department of Water Ecology and Environment China Institute of Water Resources and Hydropower Research Beijing 100038 China;

    State key laboratory of hydraulics and mountain river engineering Sichuan University Chengdu 610066 Sichuan China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Qinhuangdao coastal waters; Water environment capacity; Share ratio; MIKE 21;

    机译：秦皇岛沿海水;水环境能力;分享比例;迈克21.;

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