关于优化水力动力学特征和污染物清除效率在集成垂直流构建湿地中的研究
Peizheng Zhao1, Ruida Wang2, Binshuang Li3
1Department of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China.
Scientific reports
|February 19, 2025
概括
优化集成垂直流构造湿地 (IVCWs) 具有特定的基板安排和液压负载显著提高了废水处理效率. 这种生态方法增强了污染物去除,以获得更清洁的水.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生态工程生态工程生态工程
背景情况:
- 综合垂直流构建湿地 (IVCW) 是废水处理的新兴生态系统.
- 内部水力动力学特征对IVCW中污染物去除的效率具有重要影响.
- 优化这些特征是提高治疗效率的关键.
研究的目的:
- 为了研究基板布局,层厚度比率和液压负荷对IVCW水力动力学的影响.
- 确定最佳配置,以改善流场和污染物去除.
- 通过现场测量来验证优化的IVCW系统的性能.
主要方法:
- 计算流体动力学 (CFD) 技术用于模拟和分析内部流场.
- 系统地研究各种基质安排 (阻力系数:中,高,低).
- 评估不同层厚度比率 (例如1:4:1) 和液压负荷 (例如0.7m/d).
主要成果:
- 在0.7m/d的液压负载下,通过特定的基板布局 (从上到下下降的阻力) 和层厚度比率 (1:4:1) 实现了最佳的液压效率 (λ = 0.835).
- 与对照组相比,优化的IVCW系统显示化学氧气需求 (COD),总 (TP) 和总 (TN) 的去除率明显更高.
- 差价合约分析为控制污染物去除的水力动力学机制提供了关键的见解.
结论:
- 该研究成功确定了IVCW系统的最佳设计参数,以增强水力动力学特性.
- 优化的IVCW提供了卓越的污染物去除效率,特别是在COD,TP和TN.
- 这些发现为IVCW在生态废水处理中的更广泛应用和改进提供了宝贵的技术支持.
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