...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Estuarine Coastal and Shelf Science >Study on the total water pollutant load allocation in the Changjiang (Yangtze River) Estuary and adjacent seawater area
【24h】

Study on the total water pollutant load allocation in the Changjiang (Yangtze River) Estuary and adjacent seawater area

机译：长江口及邻近海水区总水污染物负荷分配研究

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

With the rapid economic development, the water quality is worsening and red tide takes place frequently in the Changjiang Estuary and adjacent seawaters. To improve the marine water quality, the total inland pollutant load should be controlled effectively. With efficiency and fairness in consideration, the total maximum allowable loads of COD_(Mn). NH3-N, inorganic nitrogen and active phosphate to the seawaters were calculated and allocated by the linear programming method based on the water quality response fields of the pollution sources. The maximum allowable loads are 2008 × 10~3 tons, 169 × 10~3 tons, 226 × 10~3 tons and 18 × 10~3 tons for COD_(Mn), NH3-N, inorganic nitrogen and active phosphate when the water quality targets are requested to be achieved in the whole studied region, and 346 × 10~3 tons and 32 × 10~3 tons for inorganic nitrogen and active phosphate when the water quality targets to be achieved only in the red tide sensitive area. The cut task of COD_(Mn) and NH3-N is relatively easy and can be finished by the watershed environmental plan; while the cut task of inorganic nitrogen and active phosphate is tremendous. The coastal provinces should install more denitrification and dephosphorization facilities in the existing waste water treatment plants or build new ones to control the red tides in the concerned seawaters.
机译：随着经济的快速发展，长江口及附近海水水质不断恶化，赤潮频繁发生。为改善海洋水质，应有效控制内陆污染物总量。考虑到效率和公平性，COD_（Mn）的总最大允许负载。根据污染源的水质响应场，采用线性规划方法对海水中的NH3-N，无机氮和活性磷酸盐进行了计算和分配。水中最大的COD_（Mn），NH3-N，无机氮和活性磷酸盐的最大允许负荷为2008×10〜3吨，169×10〜3吨，226×10〜3吨和18×10〜3吨要求在整个研究区域内实现水质目标，而仅在赤潮敏感地区达到水质目标时，要求达到346×10〜3吨和32×10〜3吨无机氮和活性磷酸盐。削减COD_（Mn）和NH3-N的任务比较容易，可以通过分水岭环境计划完成。而无机氮和活性磷酸盐的切割任务是巨大的。沿海省份应在现有的废水处理厂中安装更多的反硝化和脱磷设施，或建造新的设施以控制有关海水中的赤潮。

著录项

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