基于SMS-Mike21合模拟的水环境管理项目的对城市河水质量和污染控制的影响
Huaibin Wei1, Yiding Rao2, Jing Liu3,4
1School of Management and Economics, North China University of Water Resources and Electric Power, Zhengzhou, 450046, Henan, China.
Scientific reports
|March 19, 2024
概括
扩建南阳污水净化中心 (NSPC) 显著改善了白河的水质. 该研究建议进一步补救生化氧需求 (BOD5),以提高城市河流的健康.
科学领域:
- 环境工程 环境工程
- 水资源管理 水资源管理
- 计算流体动力学的流体动力学.
背景情况:
- 城市河流面临着污水排放造成的污染问题.
- 有效的水质管理需要准确的预测模型.
- 白河的主要污水排放区对生态健康至关重要.
研究的目的:
- 评估南阳污水净化中心 (NSPC) 扩建对白河水质的影响.
- 在不同的季节性条件下评估NSPC扩张的有效性.
- 为河流水环境管理提供数据驱动的建议.
主要方法:
- 使用地表水建模系统 (SMS) 和Mike21.1构建一个二维水力动力水质模型.
- 模拟湿季,正常季和干季污水排放场景.
- 使用单因素污染指数评估化学氧气需求 (COD),氨 (NH3-N) 和生物化学氧气需求 (BOD5).
主要成果:
- 结合的SMS-Mike21模型证明了具有较低误差率的适用性.
- 评估部分的水质从IV,V,V级改进为IV,III,II级 (雨季),IV,III,III级 (正常/干季).
- 生物化学氧气需求 (BOD5) 被确定为主要污染物,下游度因河流稀释而降低.
结论:
- NSPC的扩建对白河的水质产生了积极的影响,特别是COD,NH3-N和BOD5.
- 建议使用物理,化学和生物方法针对BOD5的进一步补救策略.
- 该研究提供了Mike21模型应用和城市河流污染控制的见解.
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