相关实验视频
Updated: Jun 10, 2025

08:01
The Diffusion of Passive Tracers in Laminar Shear Flow
Published on: May 1, 2018
8.5K
被动融合-透反应屏障 (PC-PRB) 的有效性和影响因素:来自追踪器模拟研究的见解
Kaixuan Zheng1, Yihao Li1, Shiyang Tao1
1State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Science, Ministry of Ecological Environment, Guangzhou, 510655, China.
Journal of environmental management
|October 16, 2024
概括
被动融合透反应屏障 (PC-PRBs) 提供了增强的地下水整治,捕获污染物,比传统屏障宽65%. 这种可持续的技术可以减少材料的数量和修复成本.
科学领域:
- 环境工程 环境工程
- 水文地质学 水文地质学
- 绿色技术 绿色技术是一种绿色技术.
背景情况:
- 污染的地下水带来了重大的环境和健康风险.
- 现场整治技术对于可持续的环境管理至关重要.
- 透反应屏障 (PRBs) 在地下水清洁方面是有效的.
研究的目的:
- 为了量化被动融合透反应屏障 (PC-PRBs) 的污染物羽毛捕获性能.
- 评估各种参数对PC-PRB有效性的影响.
- 为了比较PC-PRB与传统PRB (C-PRB) 的性能.
主要方法:
- 实验室规模的PC-PRB追踪器模拟系统.
- 图像分析用于羽捕获量化.
- 系统评估水管长度,液压梯度和介质颗粒大小.
主要成果:
- 与C-PRB相比,PC-PRB显示了65%更大的羽毛捕获率.
- 增加的水管长度增强了PC-PRB羽毛捕获能力和延迟效果.
- 较高的液压梯度或介质颗粒大小降低了PC-PRB的性能.
结论:
- PC-PRBs为地下水整治提供了更有效和更具成本效益的解决方案.
- 被动液压解压 - 融合流动效应显著改善了羽捕获.
- PC-PRB技术特别适用于低液压梯度和透度的场所.
相关概念视频
Permeability of Concrete
125
Permeability in the context of concrete refers to how easily liquids or gases can pass through the material. This quality is crucial for assessing the water-tightness and durability of concrete structures and their resistance to chemical attacks. Concrete permeability can be determined through comparative laboratory tests. These tests typically involve sealing a concrete specimen from the sides, applying water pressure to the top surface with pressure, and measuring the amount of water passing...
125
Typical Model Studies
342
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
342
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
40
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
40

